diff --git a/aws/src/integration/java/org/apache/iceberg/aws/s3/signer/TestS3RestSigner.java b/aws/src/integration/java/org/apache/iceberg/aws/s3/signer/TestS3RestSigner.java
index b51d97cc611a..34d425b16e1c 100644
--- a/aws/src/integration/java/org/apache/iceberg/aws/s3/signer/TestS3RestSigner.java
+++ b/aws/src/integration/java/org/apache/iceberg/aws/s3/signer/TestS3RestSigner.java
@@ -37,10 +37,10 @@
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.rest.auth.OAuth2Properties;
 import org.apache.iceberg.util.ThreadPools;
+import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
+import org.eclipse.jetty.ee10.servlet.ServletHolder;
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.server.handler.gzip.GzipHandler;
-import org.eclipse.jetty.servlet.ServletContextHandler;
-import org.eclipse.jetty.servlet.ServletHolder;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeAll;
diff --git a/build.gradle b/build.gradle
index 50481df2e2a9..8abd577f339a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -379,11 +379,14 @@ project(':iceberg-core') {
     compileOnly(libs.hadoop3.client) {
       exclude group: 'org.apache.avro', module: 'avro'
       exclude group: 'org.slf4j', module: 'slf4j-log4j12'
+      exclude group: "org.eclipse.jetty"
     }
 
     testImplementation libs.jetty.servlet
     testImplementation libs.jakarta.servlet
     testImplementation libs.jetty.server
+    testImplementation libs.jetty.compression.server
+    testImplementation libs.jetty.compression.gzip
     testImplementation libs.mockserver.netty
     testImplementation libs.mockserver.client.java
     testImplementation libs.sqlite.jdbc
@@ -1089,6 +1092,8 @@ project(':iceberg-open-api') {
 
     testFixturesImplementation libs.jetty.servlet
     testFixturesImplementation libs.jetty.server
+    testFixturesImplementation libs.jetty.compression.server
+    testFixturesImplementation libs.jetty.compression.gzip
     testFixturesImplementation libs.sqlite.jdbc
 
     testFixturesCompileOnly libs.apiguardian
diff --git a/core/src/test/java/org/apache/iceberg/rest/RESTCatalogAdapter.java b/core/src/test/java/org/apache/iceberg/rest/RESTCatalogAdapter.java
index 5c9e8fe6d42b..e5f3319f0d14 100644
--- a/core/src/test/java/org/apache/iceberg/rest/RESTCatalogAdapter.java
+++ b/core/src/test/java/org/apache/iceberg/rest/RESTCatalogAdapter.java
@@ -325,7 +325,8 @@ public <T extends RESTResponse> T handleRequest(
 
           String eTag = ETagProvider.of(response.metadataLocation());
 
-          if (ifNoneMatchHeader.isPresent() && eTag.equals(ifNoneMatchHeader.get().value())) {
+          if (ifNoneMatchHeader.isPresent()
+              && eTag.equals(stripETagSuffix(ifNoneMatchHeader.get().value()))) {
             return null;
           }
 
@@ -738,4 +739,18 @@ private static SnapshotMode snapshotModeFromQueryParams(Map<String, String> quer
             .getOrDefault("snapshots", RESTCatalogProperties.SNAPSHOT_LOADING_MODE_DEFAULT)
             .toUpperCase(Locale.US));
   }
+
+  /**
+   * Strips the compression suffix from an ETag value.
+   *
+   * <p>Jetty 12 appends "--gzip" to ETags when compression is enabled. This method removes such
+   * suffixes to allow proper ETag comparison.
+   */
+  static String stripETagSuffix(String eTag) {
+    if (eTag == null) {
+      return null;
+    }
+    int suffixIndex = eTag.indexOf("--");
+    return suffixIndex > 0 ? eTag.substring(0, suffixIndex) : eTag;
+  }
 }
diff --git a/core/src/test/java/org/apache/iceberg/rest/TestBaseWithRESTServer.java b/core/src/test/java/org/apache/iceberg/rest/TestBaseWithRESTServer.java
index f1a172a4237c..028a24fcf129 100644
--- a/core/src/test/java/org/apache/iceberg/rest/TestBaseWithRESTServer.java
+++ b/core/src/test/java/org/apache/iceberg/rest/TestBaseWithRESTServer.java
@@ -34,10 +34,10 @@
 import org.apache.iceberg.inmemory.InMemoryCatalog;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.rest.responses.ErrorResponse;
+import org.eclipse.jetty.compression.server.CompressionHandler;
+import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
+import org.eclipse.jetty.ee10.servlet.ServletHolder;
 import org.eclipse.jetty.server.Server;
-import org.eclipse.jetty.server.handler.gzip.GzipHandler;
-import org.eclipse.jetty.servlet.ServletContextHandler;
-import org.eclipse.jetty.servlet.ServletHolder;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.io.TempDir;
@@ -75,7 +75,7 @@ public void before() throws Exception {
         new ServletContextHandler(ServletContextHandler.NO_SESSIONS);
     servletContext.addServlet(
         new ServletHolder(new RESTCatalogServlet(adapterForRESTServer)), "/*");
-    servletContext.setHandler(new GzipHandler());
+    servletContext.setHandler(new CompressionHandler());
 
     this.httpServer = new Server(new InetSocketAddress(InetAddress.getLoopbackAddress(), 0));
     httpServer.setHandler(servletContext);
diff --git a/core/src/test/java/org/apache/iceberg/rest/TestFreshnessAwareLoading.java b/core/src/test/java/org/apache/iceberg/rest/TestFreshnessAwareLoading.java
index 0652bb378bd4..afe7397da93a 100644
--- a/core/src/test/java/org/apache/iceberg/rest/TestFreshnessAwareLoading.java
+++ b/core/src/test/java/org/apache/iceberg/rest/TestFreshnessAwareLoading.java
@@ -20,6 +20,7 @@
 
 import static org.apache.iceberg.TestBase.FILE_A;
 import static org.apache.iceberg.TestBase.SCHEMA;
+import static org.apache.iceberg.rest.RESTCatalogAdapter.stripETagSuffix;
 import static org.apache.iceberg.rest.RESTTableCache.SessionIdTableId;
 import static org.apache.iceberg.rest.RESTTableCache.TableWithETag;
 import static org.apache.iceberg.rest.RequestMatcher.matches;
@@ -184,7 +185,12 @@ public void notModifiedResponse() {
 
               assertThat(originalRequest.headers().contains(HttpHeaders.IF_NONE_MATCH));
               assertThat(
-                      originalRequest.headers().firstEntry(HttpHeaders.IF_NONE_MATCH).get().value())
+                      stripETagSuffix(
+                          originalRequest
+                              .headers()
+                              .firstEntry(HttpHeaders.IF_NONE_MATCH)
+                              .get()
+                              .value()))
                   .isEqualTo(eTag);
 
               assertThat(
diff --git a/core/src/test/java/org/apache/iceberg/rest/TestRESTCatalog.java b/core/src/test/java/org/apache/iceberg/rest/TestRESTCatalog.java
index d03c5f9b8896..36399f979c36 100644
--- a/core/src/test/java/org/apache/iceberg/rest/TestRESTCatalog.java
+++ b/core/src/test/java/org/apache/iceberg/rest/TestRESTCatalog.java
@@ -113,10 +113,10 @@
 import org.apache.iceberg.util.Pair;
 import org.assertj.core.api.InstanceOfAssertFactories;
 import org.awaitility.Awaitility;
+import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
+import org.eclipse.jetty.ee10.servlet.ServletHolder;
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.server.handler.gzip.GzipHandler;
-import org.eclipse.jetty.servlet.ServletContextHandler;
-import org.eclipse.jetty.servlet.ServletHolder;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -409,6 +409,15 @@ protected boolean requiresNamespaceCreate() {
     return true;
   }
 
+  @Override
+  protected boolean supportsNamesWithSlashes() {
+    // names with slashes are rejected and considered as suspicious characters after upgrading Jetty
+    // and the Servlet API. See also
+    // https://jakarta.ee/specifications/servlet/6.0/jakarta-servlet-spec-6.0.html#uri-path-canonicalization
+    // for additional details
+    return false;
+  }
+
   /* RESTCatalog specific tests */
 
   @Test
diff --git a/core/src/test/java/org/apache/iceberg/rest/TestRESTViewCatalog.java b/core/src/test/java/org/apache/iceberg/rest/TestRESTViewCatalog.java
index fd2faf55087c..826dd53549b4 100644
--- a/core/src/test/java/org/apache/iceberg/rest/TestRESTViewCatalog.java
+++ b/core/src/test/java/org/apache/iceberg/rest/TestRESTViewCatalog.java
@@ -57,10 +57,10 @@
 import org.apache.iceberg.rest.responses.LoadViewResponse;
 import org.apache.iceberg.view.ViewCatalogTests;
 import org.apache.iceberg.view.ViewMetadata;
+import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
+import org.eclipse.jetty.ee10.servlet.ServletHolder;
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.server.handler.gzip.GzipHandler;
-import org.eclipse.jetty.servlet.ServletContextHandler;
-import org.eclipse.jetty.servlet.ServletHolder;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
diff --git a/core/src/test/java/org/apache/iceberg/rest/TestRESTViewCatalogWithAssumedViewSupport.java b/core/src/test/java/org/apache/iceberg/rest/TestRESTViewCatalogWithAssumedViewSupport.java
index 1ba340cc56c2..94311afcd9cb 100644
--- a/core/src/test/java/org/apache/iceberg/rest/TestRESTViewCatalogWithAssumedViewSupport.java
+++ b/core/src/test/java/org/apache/iceberg/rest/TestRESTViewCatalogWithAssumedViewSupport.java
@@ -31,10 +31,10 @@
 import org.apache.iceberg.inmemory.InMemoryCatalog;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.rest.responses.ConfigResponse;
+import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
+import org.eclipse.jetty.ee10.servlet.ServletHolder;
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.server.handler.gzip.GzipHandler;
-import org.eclipse.jetty.servlet.ServletContextHandler;
-import org.eclipse.jetty.servlet.ServletHolder;
 import org.junit.jupiter.api.BeforeEach;
 
 public class TestRESTViewCatalogWithAssumedViewSupport extends TestRESTViewCatalog {
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 6ddddc4f292e..37eb052fabeb 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -69,7 +69,7 @@ jakarta-el-api = "3.0.3"
 jakarta-servlet-api = "6.1.0"
 jaxb-api = "2.3.1"
 jaxb-runtime = "2.3.9"
-jetty = "11.0.26"
+jetty = "12.1.5"
 junit = "5.14.2"
 junit-platform = "1.14.2"
 junit-pioneer = "2.3.0"
@@ -208,7 +208,9 @@ guava-testlib = { module = "com.google.guava:guava-testlib", version.ref = "guav
 jakarta-el-api = { module = "jakarta.el:jakarta.el-api", version.ref = "jakarta-el-api" }
 jakarta-servlet = {module = "jakarta.servlet:jakarta.servlet-api", version.ref = "jakarta-servlet-api"}
 jetty-server = { module = "org.eclipse.jetty:jetty-server", version.ref = "jetty" }
-jetty-servlet = { module = "org.eclipse.jetty:jetty-servlet", version.ref = "jetty" }
+jetty-servlet = { module = "org.eclipse.jetty.ee10:jetty-ee10-servlet", version.ref = "jetty" }
+jetty-compression-server = { module = "org.eclipse.jetty.compression:jetty-compression-server", version.ref = "jetty" }
+jetty-compression-gzip = { module = "org.eclipse.jetty.compression:jetty-compression-gzip", version.ref = "jetty" }
 junit-jupiter = { module = "org.junit.jupiter:junit-jupiter", version.ref = "junit" }
 junit-jupiter-engine = { module = "org.junit.jupiter:junit-jupiter-engine", version.ref = "junit" }
 junit-pioneer = { module = "org.junit-pioneer:junit-pioneer", version.ref = "junit-pioneer" }
diff --git a/open-api/src/test/java/org/apache/iceberg/rest/RESTCompatibilityKitCatalogTests.java b/open-api/src/test/java/org/apache/iceberg/rest/RESTCompatibilityKitCatalogTests.java
index 87ec90663db2..9a1f86706db6 100644
--- a/open-api/src/test/java/org/apache/iceberg/rest/RESTCompatibilityKitCatalogTests.java
+++ b/open-api/src/test/java/org/apache/iceberg/rest/RESTCompatibilityKitCatalogTests.java
@@ -97,4 +97,13 @@ protected boolean supportsNamesWithDot() {
     return PropertyUtil.propertyAsBoolean(
         restCatalog.properties(), RESTCompatibilityKitSuite.RCK_SUPPORTS_NAMES_WITH_DOT, false);
   }
+
+  @Override
+  protected boolean supportsNamesWithSlashes() {
+    // names with slashes are rejected and considered as suspicious characters after upgrading Jetty
+    // and the Servlet API. See also
+    // https://jakarta.ee/specifications/servlet/6.0/jakarta-servlet-spec-6.0.html#uri-path-canonicalization
+    // for additional details
+    return false;
+  }
 }
diff --git a/open-api/src/testFixtures/java/org/apache/iceberg/rest/RESTCatalogServer.java b/open-api/src/testFixtures/java/org/apache/iceberg/rest/RESTCatalogServer.java
index 5f0f89d92646..a9675e77f5af 100644
--- a/open-api/src/testFixtures/java/org/apache/iceberg/rest/RESTCatalogServer.java
+++ b/open-api/src/testFixtures/java/org/apache/iceberg/rest/RESTCatalogServer.java
@@ -28,12 +28,12 @@
 import org.apache.iceberg.jdbc.JdbcCatalog;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.util.PropertyUtil;
+import org.eclipse.jetty.compression.server.CompressionHandler;
+import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
+import org.eclipse.jetty.ee10.servlet.ServletHolder;
 import org.eclipse.jetty.server.Connector;
 import org.eclipse.jetty.server.Server;
 import org.eclipse.jetty.server.ServerConnector;
-import org.eclipse.jetty.server.handler.gzip.GzipHandler;
-import org.eclipse.jetty.servlet.ServletContextHandler;
-import org.eclipse.jetty.servlet.ServletHolder;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -115,7 +115,7 @@ public void start(boolean join) throws Exception {
     ServletContextHandler context = new ServletContextHandler(ServletContextHandler.NO_SESSIONS);
     ServletHolder servletHolder = new ServletHolder(servlet);
     context.addServlet(servletHolder, "/*");
-    context.insertHandler(new GzipHandler());
+    context.insertHandler(new CompressionHandler());
 
     this.httpServer =
         new Server(
diff --git a/spark/v3.4/build.gradle b/spark/v3.4/build.gradle
index 714ee703b842..37a90a6aec7e 100644
--- a/spark/v3.4/build.gradle
+++ b/spark/v3.4/build.gradle
@@ -107,9 +107,7 @@ project(":iceberg-spark:iceberg-spark-${sparkMajorVersion}_${scalaVersion}") {
     testImplementation project(path: ':iceberg-api', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-core', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-data', configuration: 'testArtifacts')
-    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
+    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements'))
     testImplementation libs.sqlite.jdbc
     testImplementation libs.awaitility
     // runtime dependencies for running REST Catalog based integration test
@@ -174,11 +172,7 @@ project(":iceberg-spark:iceberg-spark-extensions-${sparkMajorVersion}_${scalaVer
     testImplementation project(path: ':iceberg-core', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-hive-metastore', configuration: 'testArtifacts')
     testImplementation project(path: ":iceberg-spark:iceberg-spark-${sparkMajorVersion}_${scalaVersion}", configuration: 'testArtifacts')
-    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
-    // runtime dependencies for running REST Catalog based integration test
-    testRuntimeOnly libs.jetty.servlet
+    testImplementation project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')
     testRuntimeOnly libs.sqlite.jdbc
 
     testImplementation libs.avro.avro
@@ -272,10 +266,7 @@ project(":iceberg-spark:iceberg-spark-runtime-${sparkMajorVersion}_${scalaVersio
     integrationRuntimeOnly project(':iceberg-hive-metastore')
     // runtime dependencies for running REST Catalog based integration test
     integrationRuntimeOnly project(path: ':iceberg-core', configuration: 'testArtifacts')
-    integrationRuntimeOnly (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
-    integrationRuntimeOnly libs.jetty.servlet
+    integrationRuntimeOnly project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')
     integrationRuntimeOnly libs.sqlite.jdbc
 
     // Not allowed on our classpath, only the runtime jar is allowed
diff --git a/spark/v3.4/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java b/spark/v3.4/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
index 4c1a5095916c..1c9c347401c9 100644
--- a/spark/v3.4/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
+++ b/spark/v3.4/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
@@ -18,9 +18,6 @@
  */
 package org.apache.iceberg.spark.extensions;
 
-import static org.apache.hadoop.hive.conf.HiveConf.ConfVars.METASTOREURIS;
-
-import java.net.InetAddress;
 import java.util.Random;
 import java.util.concurrent.ThreadLocalRandom;
 import org.apache.iceberg.CatalogUtil;
@@ -49,14 +46,11 @@ public static void startMetastoreAndSpark() {
     TestBase.spark =
         SparkSession.builder()
             .master("local[2]")
-            .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(baseConfigs(hiveConf))
             .config("spark.testing", "true")
-            .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
             .config("spark.sql.extensions", IcebergSparkSessionExtensions.class.getName())
-            .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
             .config("spark.sql.shuffle.partitions", "4")
             .config("spark.sql.hive.metastorePartitionPruningFallbackOnException", "true")
-            .config("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
             .config(
                 SQLConf.ADAPTIVE_EXECUTION_ENABLED().key(), String.valueOf(RANDOM.nextBoolean()))
             .enableHiveSupport()
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
index 404ba7284606..b86a5f35bf6b 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
@@ -89,6 +89,7 @@ protected static SparkSession initSpark(String serializer) {
     return SparkSession.builder()
         .master("local[2]")
         .config("spark.serializer", serializer)
+        .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
         .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
         .getOrCreate();
   }
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
index 9361c63176e0..b59f1ec08eb8 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
@@ -67,6 +67,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanDeletes.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
index a218f965ea65..58bd643b10e7 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
@@ -60,6 +60,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanFilterFiles.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
index acd4688440d1..962f8738e12c 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
@@ -57,6 +57,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanReporting.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java
new file mode 100644
index 000000000000..ee1f29e56fb3
--- /dev/null
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.iceberg.spark;
+
+import com.codahale.metrics.MetricRegistry;
+import java.util.Properties;
+import org.apache.spark.SparkConf;
+import org.apache.spark.metrics.sink.MetricsServlet;
+import org.sparkproject.jetty.servlet.ServletContextHandler;
+
+/**
+ * A dummy implementation of {@link MetricsServlet} that does not start a server or report metrics.
+ * This is used in tests to avoid conflicts with Spark's jetty dependencies.
+ */
+public class DummyMetricsServlet extends MetricsServlet {
+
+  /**
+   * Constructor required by Spark's reflection-based instantiation.
+   *
+   * @param properties Metrics properties
+   * @param registry Metric registry
+   */
+  public DummyMetricsServlet(Properties properties, MetricRegistry registry) {
+    super(properties, registry);
+  }
+
+  @Override
+  public ServletContextHandler[] getHandlers(SparkConf conf) {
+    return new ServletContextHandler[] {};
+  }
+
+  @Override
+  public void start() {
+    // No-op for tests
+  }
+
+  @Override
+  public void stop() {
+    // No-op for tests
+  }
+
+  @Override
+  public void report() {
+    // No-op for tests
+  }
+}
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/TestBase.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
index 3c32b4693684..a6781fe518d6 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
@@ -65,6 +65,12 @@ public abstract class TestBase extends SparkTestHelperBase {
   protected static SparkSession spark = null;
   protected static JavaSparkContext sparkContext = null;
   protected static HiveCatalog catalog = null;
+  public static final Map<String, Object> DISABLE_UI_CONFIGS =
+      ImmutableMap.of(
+          "spark.ui.enabled",
+          "false",
+          "spark.metrics.conf.*.sink.servlet.class",
+          "org.apache.iceberg.spark.DummyMetricsServlet");
 
   @BeforeAll
   public static void startMetastoreAndSpark() {
@@ -75,10 +81,7 @@ public static void startMetastoreAndSpark() {
     TestBase.spark =
         SparkSession.builder()
             .master("local[2]")
-            .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
-            .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
-            .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
-            .config("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
+            .config(baseConfigs(hiveConf))
             .enableHiveSupport()
             .getOrCreate();
 
@@ -110,6 +113,16 @@ public static void stopMetastoreAndSpark() throws Exception {
     }
   }
 
+  protected static Map<String, Object> baseConfigs(HiveConf conf) {
+    return ImmutableMap.<String, Object>builder()
+        .put("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+        .put("spark.hadoop." + METASTOREURIS.varname, conf.get(METASTOREURIS.varname))
+        .put(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
+        .put("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
+        .putAll(DISABLE_UI_CONFIGS)
+        .build();
+  }
+
   protected long waitUntilAfter(long timestampMillis) {
     long current = System.currentTimeMillis();
     while (current <= timestampMillis) {
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
index 6647a1b483e0..e2b59499e697 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
@@ -37,6 +37,7 @@
 import org.apache.iceberg.TableProperties;
 import org.apache.iceberg.hadoop.HadoopTables;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.AvroDataTestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
@@ -61,6 +62,7 @@ public static void startSpark() {
     ScanTestBase.spark =
         SparkSession.builder()
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .master("local[2]")
             .getOrCreate();
     ScanTestBase.sc = JavaSparkContext.fromSparkContext(spark.sparkContext());
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
index 308b1bd2c646..599b7bd5fa7d 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
@@ -58,6 +58,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.GenericsHelpers;
 import org.apache.iceberg.transforms.Transforms;
 import org.apache.iceberg.types.Types;
@@ -125,6 +126,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
 
     // define UDFs used by partition tests
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
index c03f7b94eca9..41485ce81512 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
@@ -46,6 +46,7 @@
 import org.apache.iceberg.io.OutputFile;
 import org.apache.iceberg.parquet.Parquet;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.types.Types;
@@ -99,6 +100,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
index f4f57157e479..515d33299793 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
@@ -28,6 +28,7 @@
 import java.sql.Timestamp;
 import java.util.List;
 import org.apache.iceberg.spark.IcebergSpark;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.transforms.Transforms;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Row;
@@ -51,6 +52,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
index e1402396fa7f..42dc5e37ef7b 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
@@ -59,6 +59,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Sets;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.transforms.Transforms;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.api.java.JavaRDD;
@@ -118,6 +119,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestPartitionPruning.sparkContext = JavaSparkContext.fromSparkContext(spark.sparkContext());
 
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
index b0ad930487b1..7eb2d4bf8d75 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
@@ -46,6 +46,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.types.Types;
@@ -112,6 +113,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
index 11865db7fce5..334f8bc0b0ff 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
@@ -42,6 +42,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Encoders;
@@ -91,6 +92,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
index 833a0b6b5eb0..395a57e17e5b 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
@@ -59,6 +59,7 @@
 import org.apache.iceberg.spark.SparkDataFile;
 import org.apache.iceberg.spark.SparkDeleteFile;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.types.Conversions;
 import org.apache.iceberg.types.Types;
@@ -125,6 +126,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestSparkDataFile.sparkContext = JavaSparkContext.fromSparkContext(spark.sparkContext());
   }
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
index 4f4c0c7f7aea..8cd87a770540 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
@@ -52,6 +52,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.SnapshotUtil;
 import org.apache.spark.sql.Dataset;
@@ -100,6 +101,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
index 8ccea303d0c1..acd128172b30 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
@@ -50,6 +50,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkValueConverter;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Type;
 import org.apache.iceberg.types.TypeUtil;
 import org.apache.iceberg.types.Types;
@@ -88,6 +89,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     ImmutableMap<String, String> config =
         ImmutableMap.of(
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
index 64dbcbf5d0f3..128cd6982b43 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
@@ -71,6 +71,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Sets;
 import org.apache.iceberg.spark.SparkSchemaUtil;
 import org.apache.iceberg.spark.SparkStructLike;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.SparkParquetWriters;
 import org.apache.iceberg.spark.source.metrics.NumDeletes;
@@ -132,6 +133,7 @@ public static void startMetastoreAndSpark() {
             .config("spark.ui.liveUpdate.period", 0)
             .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
             .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .enableHiveSupport()
             .getOrCreate();
 
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
index d22ecb02d483..45e70f8b2ddb 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
@@ -64,6 +64,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkValueConverter;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.PropertyUtil;
 import org.apache.spark.sql.Dataset;
@@ -182,6 +183,7 @@ public static void startMetastoreAndSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .enableHiveSupport()
             .getOrCreate();
 
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
index dc4fc7e187fb..2d746d58d0c4 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
@@ -34,6 +34,7 @@
 import org.apache.iceberg.Table;
 import org.apache.iceberg.hadoop.HadoopTables;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Encoder;
@@ -68,6 +69,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .config("spark.sql.shuffle.partitions", 4)
             .getOrCreate();
   }
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
index c3fac70dd3fc..ffcc7da2053b 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
@@ -41,6 +41,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.ByteBuffers;
@@ -84,6 +85,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestWriteMetricsConfig.sc = JavaSparkContext.fromSparkContext(spark.sparkContext());
   }
diff --git a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
index 5ce56b4feca7..f03af44317cc 100644
--- a/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
+++ b/spark/v3.4/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
@@ -26,58 +26,22 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
-import org.apache.iceberg.CatalogUtil;
 import org.apache.iceberg.ParameterizedTestExtension;
 import org.apache.iceberg.TableProperties;
-import org.apache.iceberg.catalog.Namespace;
-import org.apache.iceberg.exceptions.AlreadyExistsException;
-import org.apache.iceberg.hive.HiveCatalog;
-import org.apache.iceberg.hive.TestHiveMetastore;
-import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.CatalogTestBase;
 import org.apache.iceberg.spark.SparkReadOptions;
-import org.apache.iceberg.spark.TestBase;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Row;
-import org.apache.spark.sql.SparkSession;
 import org.apache.spark.sql.execution.ExplainMode;
 import org.apache.spark.sql.functions;
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.TestTemplate;
 import org.junit.jupiter.api.extension.ExtendWith;
 
 @ExtendWith(ParameterizedTestExtension.class)
 public class TestAggregatePushDown extends CatalogTestBase {
 
-  @BeforeAll
-  public static void startMetastoreAndSpark() {
-    TestBase.metastore = new TestHiveMetastore();
-    metastore.start();
-    TestBase.hiveConf = metastore.hiveConf();
-
-    TestBase.spark.close();
-
-    TestBase.spark =
-        SparkSession.builder()
-            .master("local[2]")
-            .config("spark.sql.iceberg.aggregate_pushdown", "true")
-            .enableHiveSupport()
-            .getOrCreate();
-
-    TestBase.catalog =
-        (HiveCatalog)
-            CatalogUtil.loadCatalog(
-                HiveCatalog.class.getName(), "hive", ImmutableMap.of(), hiveConf);
-
-    try {
-      catalog.createNamespace(Namespace.of("default"));
-    } catch (AlreadyExistsException ignored) {
-      // the default namespace already exists. ignore the create error
-    }
-  }
-
   @AfterEach
   public void removeTables() {
     sql("DROP TABLE IF EXISTS %s", tableName);
diff --git a/spark/v3.5/build.gradle b/spark/v3.5/build.gradle
index 20a9cfb007bd..cda6cf57cd4a 100644
--- a/spark/v3.5/build.gradle
+++ b/spark/v3.5/build.gradle
@@ -107,14 +107,10 @@ project(":iceberg-spark:iceberg-spark-${sparkMajorVersion}_${scalaVersion}") {
     testImplementation project(path: ':iceberg-api', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-core', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-data', configuration: 'testArtifacts')
-    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
+    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements'))
     testImplementation libs.sqlite.jdbc
     testImplementation libs.awaitility
     testImplementation(testFixtures(project(':iceberg-parquet')))
-    // runtime dependencies for running REST Catalog based integration test
-    testRuntimeOnly libs.jetty.servlet
   }
 
   test {
@@ -175,11 +171,7 @@ project(":iceberg-spark:iceberg-spark-extensions-${sparkMajorVersion}_${scalaVer
     testImplementation project(path: ':iceberg-data', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-hive-metastore', configuration: 'testArtifacts')
     testImplementation project(path: ":iceberg-spark:iceberg-spark-${sparkMajorVersion}_${scalaVersion}", configuration: 'testArtifacts')
-    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
-    // runtime dependencies for running REST Catalog based integration test
-    testRuntimeOnly libs.jetty.servlet
+    testImplementation project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')
     testRuntimeOnly libs.sqlite.jdbc
 
     testImplementation libs.avro.avro
@@ -274,10 +266,7 @@ project(":iceberg-spark:iceberg-spark-runtime-${sparkMajorVersion}_${scalaVersio
     integrationRuntimeOnly project(':iceberg-hive-metastore')
     // runtime dependencies for running REST Catalog based integration test
     integrationRuntimeOnly project(path: ':iceberg-core', configuration: 'testArtifacts')
-    integrationRuntimeOnly (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
-    integrationRuntimeOnly libs.jetty.servlet
+    integrationRuntimeOnly project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')
     integrationRuntimeOnly libs.sqlite.jdbc
 
     // Not allowed on our classpath, only the runtime jar is allowed
diff --git a/spark/v3.5/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java b/spark/v3.5/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java
index bfcb5af235d3..fd8f6ed12515 100644
--- a/spark/v3.5/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java
+++ b/spark/v3.5/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java
@@ -49,7 +49,12 @@ public class TestExtendedParser {
 
   @BeforeAll
   public static void before() {
-    spark = SparkSession.builder().master("local").appName("TestExtendedParser").getOrCreate();
+    spark =
+        SparkSession.builder()
+            .master("local")
+            .appName("TestExtendedParser")
+            .config(TestBase.DISABLE_UI_CONFIGS)
+            .getOrCreate();
   }
 
   @AfterAll
diff --git a/spark/v3.5/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java b/spark/v3.5/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
index 4c1a5095916c..1c9c347401c9 100644
--- a/spark/v3.5/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
+++ b/spark/v3.5/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
@@ -18,9 +18,6 @@
  */
 package org.apache.iceberg.spark.extensions;
 
-import static org.apache.hadoop.hive.conf.HiveConf.ConfVars.METASTOREURIS;
-
-import java.net.InetAddress;
 import java.util.Random;
 import java.util.concurrent.ThreadLocalRandom;
 import org.apache.iceberg.CatalogUtil;
@@ -49,14 +46,11 @@ public static void startMetastoreAndSpark() {
     TestBase.spark =
         SparkSession.builder()
             .master("local[2]")
-            .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(baseConfigs(hiveConf))
             .config("spark.testing", "true")
-            .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
             .config("spark.sql.extensions", IcebergSparkSessionExtensions.class.getName())
-            .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
             .config("spark.sql.shuffle.partitions", "4")
             .config("spark.sql.hive.metastorePartitionPruningFallbackOnException", "true")
-            .config("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
             .config(
                 SQLConf.ADAPTIVE_EXECUTION_ENABLED().key(), String.valueOf(RANDOM.nextBoolean()))
             .enableHiveSupport()
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
index 404ba7284606..b86a5f35bf6b 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
@@ -89,6 +89,7 @@ protected static SparkSession initSpark(String serializer) {
     return SparkSession.builder()
         .master("local[2]")
         .config("spark.serializer", serializer)
+        .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
         .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
         .getOrCreate();
   }
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
index 659507e4c5e3..ef80c8d6a3ba 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
@@ -71,6 +71,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanDeletes.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
index a218f965ea65..58bd643b10e7 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
@@ -60,6 +60,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanFilterFiles.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
index 2665d7ba8d3b..cabe55e285f2 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
@@ -61,6 +61,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanReporting.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java
new file mode 100644
index 000000000000..ee1f29e56fb3
--- /dev/null
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.iceberg.spark;
+
+import com.codahale.metrics.MetricRegistry;
+import java.util.Properties;
+import org.apache.spark.SparkConf;
+import org.apache.spark.metrics.sink.MetricsServlet;
+import org.sparkproject.jetty.servlet.ServletContextHandler;
+
+/**
+ * A dummy implementation of {@link MetricsServlet} that does not start a server or report metrics.
+ * This is used in tests to avoid conflicts with Spark's jetty dependencies.
+ */
+public class DummyMetricsServlet extends MetricsServlet {
+
+  /**
+   * Constructor required by Spark's reflection-based instantiation.
+   *
+   * @param properties Metrics properties
+   * @param registry Metric registry
+   */
+  public DummyMetricsServlet(Properties properties, MetricRegistry registry) {
+    super(properties, registry);
+  }
+
+  @Override
+  public ServletContextHandler[] getHandlers(SparkConf conf) {
+    return new ServletContextHandler[] {};
+  }
+
+  @Override
+  public void start() {
+    // No-op for tests
+  }
+
+  @Override
+  public void stop() {
+    // No-op for tests
+  }
+
+  @Override
+  public void report() {
+    // No-op for tests
+  }
+}
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/TestBase.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
index daf4e29ac075..ce924f47abb3 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
@@ -65,6 +65,12 @@ public abstract class TestBase extends SparkTestHelperBase {
   protected static SparkSession spark = null;
   protected static JavaSparkContext sparkContext = null;
   protected static HiveCatalog catalog = null;
+  public static final Map<String, Object> DISABLE_UI_CONFIGS =
+      ImmutableMap.of(
+          "spark.ui.enabled",
+          "false",
+          "spark.metrics.conf.*.sink.servlet.class",
+          "org.apache.iceberg.spark.DummyMetricsServlet");
 
   @BeforeAll
   public static void startMetastoreAndSpark() {
@@ -75,10 +81,7 @@ public static void startMetastoreAndSpark() {
     TestBase.spark =
         SparkSession.builder()
             .master("local[2]")
-            .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
-            .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
-            .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
-            .config("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
+            .config(baseConfigs(hiveConf))
             .enableHiveSupport()
             .getOrCreate();
 
@@ -110,6 +113,16 @@ public static void stopMetastoreAndSpark() throws Exception {
     }
   }
 
+  protected static Map<String, Object> baseConfigs(HiveConf conf) {
+    return ImmutableMap.<String, Object>builder()
+        .put("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+        .put("spark.hadoop." + METASTOREURIS.varname, conf.get(METASTOREURIS.varname))
+        .put(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
+        .put("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
+        .putAll(DISABLE_UI_CONFIGS)
+        .build();
+  }
+
   protected long waitUntilAfter(long timestampMillis) {
     long current = System.currentTimeMillis();
     while (current <= timestampMillis) {
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java
index 284fa0b0552f..45cc64a921c9 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java
@@ -43,6 +43,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableList;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Iterables;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.spark.data.vectorized.VectorizedSparkParquetReaders;
 import org.apache.iceberg.types.Types;
@@ -64,6 +65,7 @@ public static void startSpark() {
     spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
             .getOrCreate();
   }
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
index 1c5905744a75..1cddc26bde6d 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
@@ -37,6 +37,7 @@
 import org.apache.iceberg.TableProperties;
 import org.apache.iceberg.hadoop.HadoopTables;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.AvroDataTestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
@@ -61,6 +62,7 @@ public static void startSpark() {
     ScanTestBase.spark =
         SparkSession.builder()
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .master("local[2]")
             .getOrCreate();
     ScanTestBase.sc = JavaSparkContext.fromSparkContext(spark.sparkContext());
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
index 61d6501a6847..f3a4e7f6dabe 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
@@ -54,6 +54,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.GenericsHelpers;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
@@ -116,6 +117,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
index 153564f7d129..46aa9cc15854 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
@@ -46,6 +46,7 @@
 import org.apache.iceberg.io.OutputFile;
 import org.apache.iceberg.parquet.Parquet;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.types.Types;
@@ -98,6 +99,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
index f4f57157e479..515d33299793 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
@@ -28,6 +28,7 @@
 import java.sql.Timestamp;
 import java.util.List;
 import org.apache.iceberg.spark.IcebergSpark;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.transforms.Transforms;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Row;
@@ -51,6 +52,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
index e1402396fa7f..42dc5e37ef7b 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
@@ -59,6 +59,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Sets;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.transforms.Transforms;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.api.java.JavaRDD;
@@ -118,6 +119,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestPartitionPruning.sparkContext = JavaSparkContext.fromSparkContext(spark.sparkContext());
 
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
index 0b6ab2052b66..135f98e733ee 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
@@ -46,6 +46,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.types.Types;
@@ -112,6 +113,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
index 11865db7fce5..334f8bc0b0ff 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
@@ -42,6 +42,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Encoders;
@@ -91,6 +92,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
index 3051e27d7202..b087eb8ca9fd 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
@@ -59,6 +59,7 @@
 import org.apache.iceberg.spark.SparkDataFile;
 import org.apache.iceberg.spark.SparkDeleteFile;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.types.Conversions;
 import org.apache.iceberg.types.Types;
@@ -125,6 +126,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestSparkDataFile.sparkContext = JavaSparkContext.fromSparkContext(spark.sparkContext());
   }
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
index 94547c2cf8fb..fc2cebd0730b 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
@@ -52,6 +52,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.SnapshotUtil;
 import org.apache.spark.sql.Dataset;
@@ -100,6 +101,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
index 8ccea303d0c1..acd128172b30 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
@@ -50,6 +50,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkValueConverter;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Type;
 import org.apache.iceberg.types.TypeUtil;
 import org.apache.iceberg.types.Types;
@@ -88,6 +89,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     ImmutableMap<String, String> config =
         ImmutableMap.of(
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
index c7716d343024..c7a90b124ef9 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
@@ -76,6 +76,7 @@
 import org.apache.iceberg.spark.ParquetReaderType;
 import org.apache.iceberg.spark.SparkSchemaUtil;
 import org.apache.iceberg.spark.SparkStructLike;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.SparkParquetWriters;
 import org.apache.iceberg.spark.source.metrics.NumDeletes;
@@ -138,6 +139,7 @@ public static void startMetastoreAndSpark() {
             .config("spark.ui.liveUpdate.period", 0)
             .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
             .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .enableHiveSupport()
             .getOrCreate();
 
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
index d22ecb02d483..45e70f8b2ddb 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
@@ -64,6 +64,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkValueConverter;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.PropertyUtil;
 import org.apache.spark.sql.Dataset;
@@ -182,6 +183,7 @@ public static void startMetastoreAndSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .enableHiveSupport()
             .getOrCreate();
 
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
index 54048bbf218a..82e0ba27e3bd 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
@@ -34,6 +34,7 @@
 import org.apache.iceberg.Table;
 import org.apache.iceberg.hadoop.HadoopTables;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Encoder;
@@ -68,6 +69,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .config("spark.sql.shuffle.partitions", 4)
             .getOrCreate();
   }
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
index c3fac70dd3fc..ffcc7da2053b 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
@@ -41,6 +41,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.ByteBuffers;
@@ -84,6 +85,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestWriteMetricsConfig.sc = JavaSparkContext.fromSparkContext(spark.sparkContext());
   }
diff --git a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
index 5ce56b4feca7..f03af44317cc 100644
--- a/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
+++ b/spark/v3.5/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
@@ -26,58 +26,22 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
-import org.apache.iceberg.CatalogUtil;
 import org.apache.iceberg.ParameterizedTestExtension;
 import org.apache.iceberg.TableProperties;
-import org.apache.iceberg.catalog.Namespace;
-import org.apache.iceberg.exceptions.AlreadyExistsException;
-import org.apache.iceberg.hive.HiveCatalog;
-import org.apache.iceberg.hive.TestHiveMetastore;
-import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.CatalogTestBase;
 import org.apache.iceberg.spark.SparkReadOptions;
-import org.apache.iceberg.spark.TestBase;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Row;
-import org.apache.spark.sql.SparkSession;
 import org.apache.spark.sql.execution.ExplainMode;
 import org.apache.spark.sql.functions;
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.TestTemplate;
 import org.junit.jupiter.api.extension.ExtendWith;
 
 @ExtendWith(ParameterizedTestExtension.class)
 public class TestAggregatePushDown extends CatalogTestBase {
 
-  @BeforeAll
-  public static void startMetastoreAndSpark() {
-    TestBase.metastore = new TestHiveMetastore();
-    metastore.start();
-    TestBase.hiveConf = metastore.hiveConf();
-
-    TestBase.spark.close();
-
-    TestBase.spark =
-        SparkSession.builder()
-            .master("local[2]")
-            .config("spark.sql.iceberg.aggregate_pushdown", "true")
-            .enableHiveSupport()
-            .getOrCreate();
-
-    TestBase.catalog =
-        (HiveCatalog)
-            CatalogUtil.loadCatalog(
-                HiveCatalog.class.getName(), "hive", ImmutableMap.of(), hiveConf);
-
-    try {
-      catalog.createNamespace(Namespace.of("default"));
-    } catch (AlreadyExistsException ignored) {
-      // the default namespace already exists. ignore the create error
-    }
-  }
-
   @AfterEach
   public void removeTables() {
     sql("DROP TABLE IF EXISTS %s", tableName);
diff --git a/spark/v4.0/build.gradle b/spark/v4.0/build.gradle
index fb9df4e0e0f2..3800cff0e3ee 100644
--- a/spark/v4.0/build.gradle
+++ b/spark/v4.0/build.gradle
@@ -116,14 +116,10 @@ project(":iceberg-spark:iceberg-spark-${sparkMajorVersion}_${scalaVersion}") {
     testImplementation project(path: ':iceberg-api', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-core', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-data', configuration: 'testArtifacts')
-    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
+    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements'))
     testImplementation libs.sqlite.jdbc
     testImplementation libs.awaitility
     testImplementation(testFixtures(project(':iceberg-parquet')))
-    // runtime dependencies for running REST Catalog based integration test
-    testRuntimeOnly libs.jetty.servlet
   }
 
   test {
@@ -184,11 +180,7 @@ project(":iceberg-spark:iceberg-spark-extensions-${sparkMajorVersion}_${scalaVer
     testImplementation project(path: ':iceberg-data', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-hive-metastore', configuration: 'testArtifacts')
     testImplementation project(path: ":iceberg-spark:iceberg-spark-${sparkMajorVersion}_${scalaVersion}", configuration: 'testArtifacts')
-    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
-    // runtime dependencies for running REST Catalog based integration test
-    testRuntimeOnly libs.jetty.servlet
+    testImplementation project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')
     testRuntimeOnly libs.sqlite.jdbc
 
     testImplementation libs.avro.avro
@@ -283,10 +275,7 @@ project(":iceberg-spark:iceberg-spark-runtime-${sparkMajorVersion}_${scalaVersio
     integrationRuntimeOnly project(':iceberg-hive-metastore')
     // runtime dependencies for running REST Catalog based integration test
     integrationRuntimeOnly project(path: ':iceberg-core', configuration: 'testArtifacts')
-    integrationRuntimeOnly (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
-    integrationRuntimeOnly libs.jetty.servlet
+    integrationRuntimeOnly project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')
     integrationRuntimeOnly libs.sqlite.jdbc
 
     // Not allowed on our classpath, only the runtime jar is allowed
diff --git a/spark/v4.0/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java b/spark/v4.0/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java
index bfcb5af235d3..fd8f6ed12515 100644
--- a/spark/v4.0/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java
+++ b/spark/v4.0/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java
@@ -49,7 +49,12 @@ public class TestExtendedParser {
 
   @BeforeAll
   public static void before() {
-    spark = SparkSession.builder().master("local").appName("TestExtendedParser").getOrCreate();
+    spark =
+        SparkSession.builder()
+            .master("local")
+            .appName("TestExtendedParser")
+            .config(TestBase.DISABLE_UI_CONFIGS)
+            .getOrCreate();
   }
 
   @AfterAll
diff --git a/spark/v4.0/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java b/spark/v4.0/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
index 796c47b545cc..9bf59fbfaaf8 100644
--- a/spark/v4.0/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
+++ b/spark/v4.0/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
@@ -18,9 +18,6 @@
  */
 package org.apache.iceberg.spark.extensions;
 
-import static org.apache.hadoop.hive.conf.HiveConf.ConfVars.METASTOREURIS;
-
-import java.net.InetAddress;
 import java.util.Random;
 import java.util.concurrent.ThreadLocalRandom;
 import org.apache.iceberg.CatalogUtil;
@@ -49,14 +46,11 @@ public static void startMetastoreAndSpark() {
     TestBase.spark =
         SparkSession.builder()
             .master("local[2]")
-            .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(baseConfigs(hiveConf))
             .config("spark.testing", "true")
-            .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
             .config("spark.sql.extensions", IcebergSparkSessionExtensions.class.getName())
-            .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
             .config("spark.sql.shuffle.partitions", "4")
             .config("spark.sql.hive.metastorePartitionPruningFallbackOnException", "true")
-            .config("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
             .config(
                 SQLConf.ADAPTIVE_EXECUTION_ENABLED().key(), String.valueOf(RANDOM.nextBoolean()))
             .enableHiveSupport()
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
index 404ba7284606..b86a5f35bf6b 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
@@ -89,6 +89,7 @@ protected static SparkSession initSpark(String serializer) {
     return SparkSession.builder()
         .master("local[2]")
         .config("spark.serializer", serializer)
+        .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
         .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
         .getOrCreate();
   }
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
index 659507e4c5e3..ef80c8d6a3ba 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
@@ -71,6 +71,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanDeletes.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
index a218f965ea65..58bd643b10e7 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
@@ -60,6 +60,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanFilterFiles.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
index 2665d7ba8d3b..cabe55e285f2 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
@@ -61,6 +61,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanReporting.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java
new file mode 100644
index 000000000000..ee1f29e56fb3
--- /dev/null
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.iceberg.spark;
+
+import com.codahale.metrics.MetricRegistry;
+import java.util.Properties;
+import org.apache.spark.SparkConf;
+import org.apache.spark.metrics.sink.MetricsServlet;
+import org.sparkproject.jetty.servlet.ServletContextHandler;
+
+/**
+ * A dummy implementation of {@link MetricsServlet} that does not start a server or report metrics.
+ * This is used in tests to avoid conflicts with Spark's jetty dependencies.
+ */
+public class DummyMetricsServlet extends MetricsServlet {
+
+  /**
+   * Constructor required by Spark's reflection-based instantiation.
+   *
+   * @param properties Metrics properties
+   * @param registry Metric registry
+   */
+  public DummyMetricsServlet(Properties properties, MetricRegistry registry) {
+    super(properties, registry);
+  }
+
+  @Override
+  public ServletContextHandler[] getHandlers(SparkConf conf) {
+    return new ServletContextHandler[] {};
+  }
+
+  @Override
+  public void start() {
+    // No-op for tests
+  }
+
+  @Override
+  public void stop() {
+    // No-op for tests
+  }
+
+  @Override
+  public void report() {
+    // No-op for tests
+  }
+}
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/TestBase.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
index daf4e29ac075..ce924f47abb3 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
@@ -65,6 +65,12 @@ public abstract class TestBase extends SparkTestHelperBase {
   protected static SparkSession spark = null;
   protected static JavaSparkContext sparkContext = null;
   protected static HiveCatalog catalog = null;
+  public static final Map<String, Object> DISABLE_UI_CONFIGS =
+      ImmutableMap.of(
+          "spark.ui.enabled",
+          "false",
+          "spark.metrics.conf.*.sink.servlet.class",
+          "org.apache.iceberg.spark.DummyMetricsServlet");
 
   @BeforeAll
   public static void startMetastoreAndSpark() {
@@ -75,10 +81,7 @@ public static void startMetastoreAndSpark() {
     TestBase.spark =
         SparkSession.builder()
             .master("local[2]")
-            .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
-            .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
-            .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
-            .config("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
+            .config(baseConfigs(hiveConf))
             .enableHiveSupport()
             .getOrCreate();
 
@@ -110,6 +113,16 @@ public static void stopMetastoreAndSpark() throws Exception {
     }
   }
 
+  protected static Map<String, Object> baseConfigs(HiveConf conf) {
+    return ImmutableMap.<String, Object>builder()
+        .put("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+        .put("spark.hadoop." + METASTOREURIS.varname, conf.get(METASTOREURIS.varname))
+        .put(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
+        .put("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
+        .putAll(DISABLE_UI_CONFIGS)
+        .build();
+  }
+
   protected long waitUntilAfter(long timestampMillis) {
     long current = System.currentTimeMillis();
     while (current <= timestampMillis) {
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java
index 284fa0b0552f..45cc64a921c9 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java
@@ -43,6 +43,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableList;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Iterables;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.spark.data.vectorized.VectorizedSparkParquetReaders;
 import org.apache.iceberg.types.Types;
@@ -64,6 +65,7 @@ public static void startSpark() {
     spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
             .getOrCreate();
   }
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
index 33c842d94be1..316fb7407c40 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
@@ -38,6 +38,7 @@
 import org.apache.iceberg.data.Record;
 import org.apache.iceberg.hadoop.HadoopTables;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.AvroDataTestBase;
 import org.apache.iceberg.spark.data.GenericsHelpers;
 import org.apache.iceberg.types.TypeUtil;
@@ -61,6 +62,7 @@ public static void startSpark() {
     ScanTestBase.spark =
         SparkSession.builder()
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .master("local[2]")
             .getOrCreate();
     ScanTestBase.sc = JavaSparkContext.fromSparkContext(spark.sparkContext());
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
index 61d6501a6847..f3a4e7f6dabe 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
@@ -54,6 +54,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.GenericsHelpers;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
@@ -116,6 +117,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
index c4e0d26c1c31..19e7d11aa726 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
@@ -46,6 +46,7 @@
 import org.apache.iceberg.io.OutputFile;
 import org.apache.iceberg.parquet.Parquet;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.types.Types;
@@ -98,6 +99,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
index f4f57157e479..515d33299793 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
@@ -28,6 +28,7 @@
 import java.sql.Timestamp;
 import java.util.List;
 import org.apache.iceberg.spark.IcebergSpark;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.transforms.Transforms;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Row;
@@ -51,6 +52,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
index b31880e8e958..f181b172941d 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
@@ -60,6 +60,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Sets;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.transforms.Transforms;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.api.java.JavaRDD;
@@ -119,6 +120,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestPartitionPruning.sparkContext = JavaSparkContext.fromSparkContext(spark.sparkContext());
 
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
index 0b6ab2052b66..135f98e733ee 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
@@ -46,6 +46,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.types.Types;
@@ -112,6 +113,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
index 11865db7fce5..334f8bc0b0ff 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
@@ -42,6 +42,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Encoders;
@@ -91,6 +92,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
index 35a837b6b88b..8f407eedb97f 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
@@ -60,6 +60,7 @@
 import org.apache.iceberg.spark.SparkDataFile;
 import org.apache.iceberg.spark.SparkDeleteFile;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.types.Conversions;
 import org.apache.iceberg.types.Types;
@@ -126,6 +127,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestSparkDataFile.sparkContext = JavaSparkContext.fromSparkContext(spark.sparkContext());
   }
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
index 94547c2cf8fb..fc2cebd0730b 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
@@ -52,6 +52,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.SnapshotUtil;
 import org.apache.spark.sql.Dataset;
@@ -100,6 +101,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
index 8ccea303d0c1..acd128172b30 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
@@ -50,6 +50,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkValueConverter;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Type;
 import org.apache.iceberg.types.TypeUtil;
 import org.apache.iceberg.types.Types;
@@ -88,6 +89,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     ImmutableMap<String, String> config =
         ImmutableMap.of(
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
index c7716d343024..c7a90b124ef9 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
@@ -76,6 +76,7 @@
 import org.apache.iceberg.spark.ParquetReaderType;
 import org.apache.iceberg.spark.SparkSchemaUtil;
 import org.apache.iceberg.spark.SparkStructLike;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.SparkParquetWriters;
 import org.apache.iceberg.spark.source.metrics.NumDeletes;
@@ -138,6 +139,7 @@ public static void startMetastoreAndSpark() {
             .config("spark.ui.liveUpdate.period", 0)
             .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
             .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .enableHiveSupport()
             .getOrCreate();
 
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
index d22ecb02d483..45e70f8b2ddb 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
@@ -64,6 +64,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkValueConverter;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.PropertyUtil;
 import org.apache.spark.sql.Dataset;
@@ -182,6 +183,7 @@ public static void startMetastoreAndSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .enableHiveSupport()
             .getOrCreate();
 
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
index 54048bbf218a..82e0ba27e3bd 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
@@ -34,6 +34,7 @@
 import org.apache.iceberg.Table;
 import org.apache.iceberg.hadoop.HadoopTables;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Encoder;
@@ -68,6 +69,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .config("spark.sql.shuffle.partitions", 4)
             .getOrCreate();
   }
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
index e2b5d8920e9f..a6f5b50c8e4e 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
@@ -42,6 +42,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.ByteBuffers;
@@ -85,6 +86,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestWriteMetricsConfig.sc = JavaSparkContext.fromSparkContext(spark.sparkContext());
   }
diff --git a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
index ce0a0f26a096..f03af44317cc 100644
--- a/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
+++ b/spark/v4.0/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
@@ -26,58 +26,22 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
-import org.apache.iceberg.CatalogUtil;
 import org.apache.iceberg.ParameterizedTestExtension;
 import org.apache.iceberg.TableProperties;
-import org.apache.iceberg.catalog.Namespace;
-import org.apache.iceberg.exceptions.AlreadyExistsException;
-import org.apache.iceberg.hive.HiveCatalog;
-import org.apache.iceberg.hive.TestHiveMetastore;
-import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.CatalogTestBase;
 import org.apache.iceberg.spark.SparkReadOptions;
-import org.apache.iceberg.spark.TestBase;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Row;
-import org.apache.spark.sql.SparkSession;
 import org.apache.spark.sql.execution.ExplainMode;
 import org.apache.spark.sql.functions;
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.TestTemplate;
 import org.junit.jupiter.api.extension.ExtendWith;
 
 @ExtendWith(ParameterizedTestExtension.class)
 public class TestAggregatePushDown extends CatalogTestBase {
 
-  @BeforeAll
-  public static void startMetastoreAndSpark() {
-    TestBase.metastore = new TestHiveMetastore();
-    metastore.start();
-    TestBase.hiveConf = metastore.hiveConf();
-
-    TestBase.spark.stop();
-
-    TestBase.spark =
-        SparkSession.builder()
-            .master("local[2]")
-            .config("spark.sql.iceberg.aggregate_pushdown", "true")
-            .enableHiveSupport()
-            .getOrCreate();
-
-    TestBase.catalog =
-        (HiveCatalog)
-            CatalogUtil.loadCatalog(
-                HiveCatalog.class.getName(), "hive", ImmutableMap.of(), hiveConf);
-
-    try {
-      catalog.createNamespace(Namespace.of("default"));
-    } catch (AlreadyExistsException ignored) {
-      // the default namespace already exists. ignore the create error
-    }
-  }
-
   @AfterEach
   public void removeTables() {
     sql("DROP TABLE IF EXISTS %s", tableName);
diff --git a/spark/v4.1/build.gradle b/spark/v4.1/build.gradle
index c189b037c8ba..bc844982b657 100644
--- a/spark/v4.1/build.gradle
+++ b/spark/v4.1/build.gradle
@@ -125,14 +125,10 @@ project(":iceberg-spark:iceberg-spark-${sparkMajorVersion}_${scalaVersion}") {
     testImplementation project(path: ':iceberg-api', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-core', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-data', configuration: 'testArtifacts')
-    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
+    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements'))
     testImplementation libs.sqlite.jdbc
     testImplementation libs.awaitility
     testImplementation(testFixtures(project(':iceberg-parquet')))
-    // runtime dependencies for running REST Catalog based integration test
-    testRuntimeOnly libs.jetty.servlet
   }
 
   test {
@@ -193,11 +189,7 @@ project(":iceberg-spark:iceberg-spark-extensions-${sparkMajorVersion}_${scalaVer
     testImplementation project(path: ':iceberg-data', configuration: 'testArtifacts')
     testImplementation project(path: ':iceberg-hive-metastore', configuration: 'testArtifacts')
     testImplementation project(path: ":iceberg-spark:iceberg-spark-${sparkMajorVersion}_${scalaVersion}", configuration: 'testArtifacts')
-    testImplementation (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
-    // runtime dependencies for running REST Catalog based integration test
-    testRuntimeOnly libs.jetty.servlet
+    testImplementation project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')
     testRuntimeOnly libs.sqlite.jdbc
 
     testImplementation libs.avro.avro
@@ -293,10 +285,7 @@ project(":iceberg-spark:iceberg-spark-runtime-${sparkMajorVersion}_${scalaVersio
     integrationRuntimeOnly project(':iceberg-hive-metastore')
     // runtime dependencies for running REST Catalog based integration test
     integrationRuntimeOnly project(path: ':iceberg-core', configuration: 'testArtifacts')
-    integrationRuntimeOnly (project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')) {
-      transitive = false
-    }
-    integrationRuntimeOnly libs.jetty.servlet
+    integrationRuntimeOnly project(path: ':iceberg-open-api', configuration: 'testFixturesRuntimeElements')
     integrationRuntimeOnly libs.sqlite.jdbc
 
     // Not allowed on our classpath, only the runtime jar is allowed
diff --git a/spark/v4.1/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java b/spark/v4.1/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java
index bfcb5af235d3..fd8f6ed12515 100644
--- a/spark/v4.1/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java
+++ b/spark/v4.1/spark-extensions/src/test/java/org/apache/iceberg/spark/TestExtendedParser.java
@@ -49,7 +49,12 @@ public class TestExtendedParser {
 
   @BeforeAll
   public static void before() {
-    spark = SparkSession.builder().master("local").appName("TestExtendedParser").getOrCreate();
+    spark =
+        SparkSession.builder()
+            .master("local")
+            .appName("TestExtendedParser")
+            .config(TestBase.DISABLE_UI_CONFIGS)
+            .getOrCreate();
   }
 
   @AfterAll
diff --git a/spark/v4.1/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java b/spark/v4.1/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
index 796c47b545cc..9bf59fbfaaf8 100644
--- a/spark/v4.1/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
+++ b/spark/v4.1/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/ExtensionsTestBase.java
@@ -18,9 +18,6 @@
  */
 package org.apache.iceberg.spark.extensions;
 
-import static org.apache.hadoop.hive.conf.HiveConf.ConfVars.METASTOREURIS;
-
-import java.net.InetAddress;
 import java.util.Random;
 import java.util.concurrent.ThreadLocalRandom;
 import org.apache.iceberg.CatalogUtil;
@@ -49,14 +46,11 @@ public static void startMetastoreAndSpark() {
     TestBase.spark =
         SparkSession.builder()
             .master("local[2]")
-            .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(baseConfigs(hiveConf))
             .config("spark.testing", "true")
-            .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
             .config("spark.sql.extensions", IcebergSparkSessionExtensions.class.getName())
-            .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
             .config("spark.sql.shuffle.partitions", "4")
             .config("spark.sql.hive.metastorePartitionPruningFallbackOnException", "true")
-            .config("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
             .config(
                 SQLConf.ADAPTIVE_EXECUTION_ENABLED().key(), String.valueOf(RANDOM.nextBoolean()))
             .enableHiveSupport()
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
index 404ba7284606..b86a5f35bf6b 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/SparkDistributedDataScanTestBase.java
@@ -89,6 +89,7 @@ protected static SparkSession initSpark(String serializer) {
     return SparkSession.builder()
         .master("local[2]")
         .config("spark.serializer", serializer)
+        .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
         .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
         .getOrCreate();
   }
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
index 659507e4c5e3..ef80c8d6a3ba 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanDeletes.java
@@ -71,6 +71,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanDeletes.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
index a218f965ea65..58bd643b10e7 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanFilterFiles.java
@@ -60,6 +60,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanFilterFiles.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
index 2665d7ba8d3b..cabe55e285f2 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/TestSparkDistributedDataScanReporting.java
@@ -61,6 +61,7 @@ public static void startSpark() {
     TestSparkDistributedDataScanReporting.spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(org.apache.iceberg.spark.TestBase.DISABLE_UI_CONFIGS)
             .config("spark.serializer", "org.apache.spark.serializer.KryoSerializer")
             .config(SQLConf.SHUFFLE_PARTITIONS().key(), "4")
             .getOrCreate();
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java
new file mode 100644
index 000000000000..ee1f29e56fb3
--- /dev/null
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/DummyMetricsServlet.java
@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.iceberg.spark;
+
+import com.codahale.metrics.MetricRegistry;
+import java.util.Properties;
+import org.apache.spark.SparkConf;
+import org.apache.spark.metrics.sink.MetricsServlet;
+import org.sparkproject.jetty.servlet.ServletContextHandler;
+
+/**
+ * A dummy implementation of {@link MetricsServlet} that does not start a server or report metrics.
+ * This is used in tests to avoid conflicts with Spark's jetty dependencies.
+ */
+public class DummyMetricsServlet extends MetricsServlet {
+
+  /**
+   * Constructor required by Spark's reflection-based instantiation.
+   *
+   * @param properties Metrics properties
+   * @param registry Metric registry
+   */
+  public DummyMetricsServlet(Properties properties, MetricRegistry registry) {
+    super(properties, registry);
+  }
+
+  @Override
+  public ServletContextHandler[] getHandlers(SparkConf conf) {
+    return new ServletContextHandler[] {};
+  }
+
+  @Override
+  public void start() {
+    // No-op for tests
+  }
+
+  @Override
+  public void stop() {
+    // No-op for tests
+  }
+
+  @Override
+  public void report() {
+    // No-op for tests
+  }
+}
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/TestBase.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
index daf4e29ac075..a5100e14ed25 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/TestBase.java
@@ -65,6 +65,13 @@ public abstract class TestBase extends SparkTestHelperBase {
   protected static SparkSession spark = null;
   protected static JavaSparkContext sparkContext = null;
   protected static HiveCatalog catalog = null;
+  // Disable Spark UI and MetricsServlet to avoid dependency conflicts with Spark's Jetty 11
+  public static final Map<String, Object> DISABLE_UI_CONFIGS =
+      ImmutableMap.of(
+          "spark.ui.enabled",
+          "false",
+          "spark.metrics.conf.*.sink.servlet.class",
+          "org.apache.iceberg.spark.DummyMetricsServlet");
 
   @BeforeAll
   public static void startMetastoreAndSpark() {
@@ -75,10 +82,7 @@ public static void startMetastoreAndSpark() {
     TestBase.spark =
         SparkSession.builder()
             .master("local[2]")
-            .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
-            .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
-            .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
-            .config("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
+            .config(baseConfigs(hiveConf))
             .enableHiveSupport()
             .getOrCreate();
 
@@ -110,6 +114,16 @@ public static void stopMetastoreAndSpark() throws Exception {
     }
   }
 
+  protected static Map<String, Object> baseConfigs(HiveConf conf) {
+    return ImmutableMap.<String, Object>builder()
+        .put("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+        .put("spark.hadoop." + METASTOREURIS.varname, conf.get(METASTOREURIS.varname))
+        .put(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
+        .put("spark.sql.legacy.respectNullabilityInTextDatasetConversion", "true")
+        .putAll(DISABLE_UI_CONFIGS)
+        .build();
+  }
+
   protected long waitUntilAfter(long timestampMillis) {
     long current = System.currentTimeMillis();
     while (current <= timestampMillis) {
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java
index 284fa0b0552f..45cc64a921c9 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/data/vectorized/parquet/TestParquetDictionaryEncodedVectorizedReads.java
@@ -43,6 +43,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableList;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Iterables;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.spark.data.vectorized.VectorizedSparkParquetReaders;
 import org.apache.iceberg.types.Types;
@@ -64,6 +65,7 @@ public static void startSpark() {
     spark =
         SparkSession.builder()
             .master("local[2]")
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
             .getOrCreate();
   }
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
index 33c842d94be1..316fb7407c40 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/ScanTestBase.java
@@ -38,6 +38,7 @@
 import org.apache.iceberg.data.Record;
 import org.apache.iceberg.hadoop.HadoopTables;
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.AvroDataTestBase;
 import org.apache.iceberg.spark.data.GenericsHelpers;
 import org.apache.iceberg.types.TypeUtil;
@@ -61,6 +62,7 @@ public static void startSpark() {
     ScanTestBase.spark =
         SparkSession.builder()
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .master("local[2]")
             .getOrCreate();
     ScanTestBase.sc = JavaSparkContext.fromSparkContext(spark.sparkContext());
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
index 61d6501a6847..f3a4e7f6dabe 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestFilteredScan.java
@@ -54,6 +54,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.GenericsHelpers;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
@@ -116,6 +117,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
index 290e73c3bd1e..7f523983d0a0 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestForwardCompatibility.java
@@ -46,6 +46,7 @@
 import org.apache.iceberg.io.OutputFile;
 import org.apache.iceberg.parquet.Parquet;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.types.Types;
@@ -97,6 +98,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
index f4f57157e479..515d33299793 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestIcebergSpark.java
@@ -28,6 +28,7 @@
 import java.sql.Timestamp;
 import java.util.List;
 import org.apache.iceberg.spark.IcebergSpark;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.transforms.Transforms;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Row;
@@ -51,6 +52,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
index b31880e8e958..f181b172941d 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionPruning.java
@@ -60,6 +60,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Sets;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.transforms.Transforms;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.api.java.JavaRDD;
@@ -119,6 +120,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestPartitionPruning.sparkContext = JavaSparkContext.fromSparkContext(spark.sparkContext());
 
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
index 0b6ab2052b66..135f98e733ee 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestPartitionValues.java
@@ -46,6 +46,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.TestHelpers;
 import org.apache.iceberg.types.Types;
@@ -112,6 +113,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
index 11865db7fce5..334f8bc0b0ff 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSnapshotSelection.java
@@ -42,6 +42,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Encoders;
@@ -91,6 +92,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
index 35a837b6b88b..8f407eedb97f 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataFile.java
@@ -60,6 +60,7 @@
 import org.apache.iceberg.spark.SparkDataFile;
 import org.apache.iceberg.spark.SparkDeleteFile;
 import org.apache.iceberg.spark.SparkSchemaUtil;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.types.Conversions;
 import org.apache.iceberg.types.Types;
@@ -126,6 +127,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestSparkDataFile.sparkContext = JavaSparkContext.fromSparkContext(spark.sparkContext());
   }
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
index 94547c2cf8fb..fc2cebd0730b 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkDataWrite.java
@@ -52,6 +52,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.SnapshotUtil;
 import org.apache.spark.sql.Dataset;
@@ -100,6 +101,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
   }
 
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
index 8ccea303d0c1..acd128172b30 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReadProjection.java
@@ -50,6 +50,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkReadOptions;
 import org.apache.iceberg.spark.SparkValueConverter;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Type;
 import org.apache.iceberg.types.TypeUtil;
 import org.apache.iceberg.types.Types;
@@ -88,6 +89,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     ImmutableMap<String, String> config =
         ImmutableMap.of(
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
index c7716d343024..c7a90b124ef9 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderDeletes.java
@@ -76,6 +76,7 @@
 import org.apache.iceberg.spark.ParquetReaderType;
 import org.apache.iceberg.spark.SparkSchemaUtil;
 import org.apache.iceberg.spark.SparkStructLike;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.spark.data.SparkParquetWriters;
 import org.apache.iceberg.spark.source.metrics.NumDeletes;
@@ -138,6 +139,7 @@ public static void startMetastoreAndSpark() {
             .config("spark.ui.liveUpdate.period", 0)
             .config(SQLConf.PARTITION_OVERWRITE_MODE().key(), "dynamic")
             .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .enableHiveSupport()
             .getOrCreate();
 
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
index d22ecb02d483..45e70f8b2ddb 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestSparkReaderWithBloomFilter.java
@@ -64,6 +64,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkValueConverter;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.PropertyUtil;
 import org.apache.spark.sql.Dataset;
@@ -182,6 +183,7 @@ public static void startMetastoreAndSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.hadoop." + METASTOREURIS.varname, hiveConf.get(METASTOREURIS.varname))
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .enableHiveSupport()
             .getOrCreate();
 
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
index 635229f6a005..79c3951c5d16 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestStructuredStreaming.java
@@ -34,6 +34,7 @@
 import org.apache.iceberg.Table;
 import org.apache.iceberg.hadoop.HadoopTables;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.types.Types;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Encoder;
@@ -67,6 +68,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .config("spark.sql.shuffle.partitions", 4)
             .getOrCreate();
   }
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
index e2b5d8920e9f..a6f5b50c8e4e 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/source/TestWriteMetricsConfig.java
@@ -42,6 +42,7 @@
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.relocated.com.google.common.collect.Maps;
 import org.apache.iceberg.spark.SparkWriteOptions;
+import org.apache.iceberg.spark.TestBase;
 import org.apache.iceberg.spark.data.RandomData;
 import org.apache.iceberg.types.Types;
 import org.apache.iceberg.util.ByteBuffers;
@@ -85,6 +86,7 @@ public static void startSpark() {
         SparkSession.builder()
             .master("local[2]")
             .config("spark.driver.host", InetAddress.getLoopbackAddress().getHostAddress())
+            .config(TestBase.DISABLE_UI_CONFIGS)
             .getOrCreate();
     TestWriteMetricsConfig.sc = JavaSparkContext.fromSparkContext(spark.sparkContext());
   }
diff --git a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
index ce0a0f26a096..f03af44317cc 100644
--- a/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
+++ b/spark/v4.1/spark/src/test/java/org/apache/iceberg/spark/sql/TestAggregatePushDown.java
@@ -26,58 +26,22 @@
 import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
-import org.apache.iceberg.CatalogUtil;
 import org.apache.iceberg.ParameterizedTestExtension;
 import org.apache.iceberg.TableProperties;
-import org.apache.iceberg.catalog.Namespace;
-import org.apache.iceberg.exceptions.AlreadyExistsException;
-import org.apache.iceberg.hive.HiveCatalog;
-import org.apache.iceberg.hive.TestHiveMetastore;
-import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
 import org.apache.iceberg.relocated.com.google.common.collect.Lists;
 import org.apache.iceberg.spark.CatalogTestBase;
 import org.apache.iceberg.spark.SparkReadOptions;
-import org.apache.iceberg.spark.TestBase;
 import org.apache.spark.sql.Dataset;
 import org.apache.spark.sql.Row;
-import org.apache.spark.sql.SparkSession;
 import org.apache.spark.sql.execution.ExplainMode;
 import org.apache.spark.sql.functions;
 import org.junit.jupiter.api.AfterEach;
-import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.TestTemplate;
 import org.junit.jupiter.api.extension.ExtendWith;
 
 @ExtendWith(ParameterizedTestExtension.class)
 public class TestAggregatePushDown extends CatalogTestBase {
 
-  @BeforeAll
-  public static void startMetastoreAndSpark() {
-    TestBase.metastore = new TestHiveMetastore();
-    metastore.start();
-    TestBase.hiveConf = metastore.hiveConf();
-
-    TestBase.spark.stop();
-
-    TestBase.spark =
-        SparkSession.builder()
-            .master("local[2]")
-            .config("spark.sql.iceberg.aggregate_pushdown", "true")
-            .enableHiveSupport()
-            .getOrCreate();
-
-    TestBase.catalog =
-        (HiveCatalog)
-            CatalogUtil.loadCatalog(
-                HiveCatalog.class.getName(), "hive", ImmutableMap.of(), hiveConf);
-
-    try {
-      catalog.createNamespace(Namespace.of("default"));
-    } catch (AlreadyExistsException ignored) {
-      // the default namespace already exists. ignore the create error
-    }
-  }
-
   @AfterEach
   public void removeTables() {
     sql("DROP TABLE IF EXISTS %s", tableName);