From d59669d4ee9dd5dcad6b59ad320112b567bca3bf Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Mon, 13 Nov 2023 16:02:24 +0800
Subject: [PATCH 01/20] feat: support edgeexistence api

---
 .../api/traverser/EdgeExistenceAPI.java       | 57 ++++++++++++++++
 .../hugegraph/driver/TraverserManager.java    |  9 +++
 .../apache/hugegraph/api/ApiTestSuite.java    |  2 +
 .../org/apache/hugegraph/api/BaseApiTest.java |  1 +
 .../api/traverser/EdgeExistenceAPITest.java   | 68 +++++++++++++++++++
 .../api/traverser/TraverserApiTest.java       |  3 +
 6 files changed, 140 insertions(+)
 create mode 100644 hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
 create mode 100644 hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java

diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
new file mode 100644
index 000000000..80094a9a6
--- /dev/null
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
@@ -0,0 +1,57 @@
+/*
+ * 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.hugegraph.api.traverser;
+
+
+import org.apache.hugegraph.api.graph.GraphAPI;
+import org.apache.hugegraph.client.RestClient;
+import org.apache.hugegraph.rest.RestResult;
+import org.apache.hugegraph.structure.graph.Edge;
+
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+public class EdgeExistenceAPI extends TraversersAPI {
+
+    public EdgeExistenceAPI(RestClient client, String graph) {
+        super(client, graph);
+    }
+
+    @Override
+    protected String type() {
+        return "edgeexistence";
+    }
+
+    public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
+                          String sortValues, long limit) {
+        String source = GraphAPI.formatVertexId(sourceId, false);
+        String target = GraphAPI.formatVertexId(targetId, false);
+
+        checkLimit((int) limit);
+
+        Map<String, Object> params = new LinkedHashMap<>();
+        params.put("source", source);
+        params.put("target", target);
+        params.put("label", edgeLabel);
+        params.put("sortValues", sortValues);
+        params.put("limit", limit);
+        RestResult result = this.client.get(this.path(), params);
+        return result.readList(this.type(), Edge.class);
+    }
+}
diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
index 735046a7f..c2c2d951b 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
@@ -45,6 +45,7 @@
 import org.apache.hugegraph.api.traverser.TemplatePathsAPI;
 import org.apache.hugegraph.api.traverser.VerticesAPI;
 import org.apache.hugegraph.api.traverser.WeightedShortestPathAPI;
+import org.apache.hugegraph.api.traverser.EdgeExistenceAPI;
 import org.apache.hugegraph.client.RestClient;
 import org.apache.hugegraph.structure.graph.Edge;
 import org.apache.hugegraph.structure.graph.Edges;
@@ -98,6 +99,7 @@ public class TraverserManager {
     private PersonalRankAPI personalRankAPI;
     private VerticesAPI verticesAPI;
     private EdgesAPI edgesAPI;
+    private EdgeExistenceAPI edgeExistenceAPI;
 
     public TraverserManager(RestClient client, GraphManager graphManager) {
         this.graphManager = graphManager;
@@ -124,6 +126,7 @@ public TraverserManager(RestClient client, GraphManager graphManager) {
         this.personalRankAPI = new PersonalRankAPI(client, graph);
         this.verticesAPI = new VerticesAPI(client, graph);
         this.edgesAPI = new EdgesAPI(client, graph);
+        this.edgeExistenceAPI = new EdgeExistenceAPI(client, graph);
     }
 
     public double jaccardSimilarity(Object vertexId, Object otherId) {
@@ -538,4 +541,10 @@ public Iterator<Edge> iteratorEdges(Shard shard, int sizePerPage) {
             return this.edges(shard, page, sizePerPage);
         });
     }
+
+    public List<Edge> edgeExistence(Object sourceId, Object targetId, String edgeLabel,
+                                    String sortValues, long limit){
+        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel,
+                sortValues, limit);
+    }
 }
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/ApiTestSuite.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/ApiTestSuite.java
index 6fdb3c537..c9edba73f 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/ApiTestSuite.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/ApiTestSuite.java
@@ -44,6 +44,7 @@
 import org.apache.hugegraph.api.traverser.SingleSourceShortestPathApiTest;
 import org.apache.hugegraph.api.traverser.TemplatePathsApiTest;
 import org.apache.hugegraph.api.traverser.WeightedShortestPathApiTest;
+import org.apache.hugegraph.api.traverser.EdgeExistenceAPITest;
 import org.junit.runner.RunWith;
 import org.junit.runners.Suite;
 
@@ -84,6 +85,7 @@
         FusiformSimilarityApiTest.class,
         NeighborRankApiTest.class,
         PersonalRankApiTest.class,
+        EdgeExistenceAPITest.class,
 
         TargetApiTest.class,
         GroupApiTest.class,
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/BaseApiTest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/BaseApiTest.java
index 37e88622e..aca50e25a 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/BaseApiTest.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/BaseApiTest.java
@@ -31,6 +31,7 @@
 import org.apache.hugegraph.api.schema.SchemaAPI;
 import org.apache.hugegraph.api.schema.VertexLabelAPI;
 import org.apache.hugegraph.api.task.TaskAPI;
+import org.apache.hugegraph.api.traverser.EdgeExistenceAPI;
 import org.apache.hugegraph.api.variables.VariablesAPI;
 import org.apache.hugegraph.api.version.VersionAPI;
 import org.apache.hugegraph.client.RestClient;
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
new file mode 100644
index 000000000..d88ac6c66
--- /dev/null
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
@@ -0,0 +1,68 @@
+/*
+ * 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.hugegraph.api.traverser;
+
+
+import org.apache.hugegraph.api.BaseApiTest;
+import org.apache.hugegraph.structure.graph.Edge;
+import org.apache.hugegraph.testutil.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.util.List;
+
+public class EdgeExistenceAPITest extends TraverserApiTest{
+
+    @BeforeClass
+    public static void prepareSchemaAndGraph() {
+        BaseApiTest.initPropertyKey();
+        BaseApiTest.initVertexLabel();
+        BaseApiTest.initEdgeLabel();
+        BaseApiTest.initIndexLabel();
+        BaseApiTest.initVertex();
+        BaseApiTest.initEdge();
+    }
+
+    @Test
+    public void testEdgeExistenceGet() {
+        Object markoId = getVertexId("person", "name", "marko");
+        Object vadasId = getVertexId("person", "name", "vadas");
+
+        List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId,
+                                      "knows", "", 100);
+
+        Assert.assertEquals(1, edges.size());
+        String id = edges.get(0).id();
+
+        Assert.assertTrue(id.contains("marko"));
+        Assert.assertTrue(id.contains("vadas"));
+
+        Object lopId = getVertexId("software", "name", "lop");
+
+        edges = edgeExistenceAPI.get(lopId, vadasId,
+                           "knows", "", 100);
+        Assert.assertEquals(0, edges.size());
+
+        Object joshId = getVertexId("person", "name", "josh");
+        Object rippleId = getVertexId("person", "name", "ripple");
+
+        edges = edgeExistenceAPI.get(joshId, rippleId,
+                                    "created", "", 100);
+        Assert.assertEquals(1, edges.size());
+    }
+}
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/TraverserApiTest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/TraverserApiTest.java
index 2a02dd10d..f6ab77156 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/TraverserApiTest.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/TraverserApiTest.java
@@ -49,6 +49,7 @@ public class TraverserApiTest extends BaseApiTest {
 
     protected static VerticesAPI verticesAPI;
     protected static EdgesAPI edgesAPI;
+    protected static EdgeExistenceAPI edgeExistenceAPI;
 
     @BeforeClass
     public static void init() {
@@ -82,5 +83,7 @@ public static void init() {
 
         verticesAPI = new VerticesAPI(client, GRAPH);
         edgesAPI = new EdgesAPI(client, GRAPH);
+
+        edgeExistenceAPI = new EdgeExistenceAPI(client, GRAPH);
     }
 }

From c3e2a7b1a4df2705cb70bab0e8c40c9575af4e00 Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Thu, 30 Nov 2023 18:30:53 +0800
Subject: [PATCH 02/20] chore

---
 .../java/org/apache/hugegraph/driver/TraverserManager.java  | 5 ++---
 .../hugegraph/api/traverser/EdgeExistenceAPITest.java       | 6 ++----
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
index c2c2d951b..b8b5b9ed3 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
@@ -543,8 +543,7 @@ public Iterator<Edge> iteratorEdges(Shard shard, int sizePerPage) {
     }
 
     public List<Edge> edgeExistence(Object sourceId, Object targetId, String edgeLabel,
-                                    String sortValues, long limit){
-        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel,
-                sortValues, limit);
+                                    String sortValues, int limit){
+        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, sortValues, limit);
     }
 }
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
index d88ac6c66..4d4fea2bb 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
@@ -54,15 +54,13 @@ public void testEdgeExistenceGet() {
 
         Object lopId = getVertexId("software", "name", "lop");
 
-        edges = edgeExistenceAPI.get(lopId, vadasId,
-                           "knows", "", 100);
+        edges = edgeExistenceAPI.get(lopId, vadasId, "knows", "", 100);
         Assert.assertEquals(0, edges.size());
 
         Object joshId = getVertexId("person", "name", "josh");
         Object rippleId = getVertexId("person", "name", "ripple");
 
-        edges = edgeExistenceAPI.get(joshId, rippleId,
-                                    "created", "", 100);
+        edges = edgeExistenceAPI.get(joshId, rippleId, "created", "", 100);
         Assert.assertEquals(1, edges.size());
     }
 }

From d489507c904876a78c88b969982395d5afff1962 Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Thu, 30 Nov 2023 19:02:00 +0800
Subject: [PATCH 03/20] add new version api

---
 .../hugegraph/api/traverser/EdgeExistenceAPI.java   | 13 ++++++++-----
 .../apache/hugegraph/driver/TraverserManager.java   |  9 ++++++++-
 .../api/traverser/EdgeExistenceAPITest.java         |  6 +++---
 3 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
index 80094a9a6..0f0e2e979 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
@@ -22,6 +22,7 @@
 import org.apache.hugegraph.client.RestClient;
 import org.apache.hugegraph.rest.RestResult;
 import org.apache.hugegraph.structure.graph.Edge;
+import org.apache.logging.log4j.util.Strings;
 
 import java.util.LinkedHashMap;
 import java.util.List;
@@ -39,18 +40,20 @@ protected String type() {
     }
 
     public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
-                          String sortValues, long limit) {
+                          String sortValues, Long limit) {
         String source = GraphAPI.formatVertexId(sourceId, false);
         String target = GraphAPI.formatVertexId(targetId, false);
 
-        checkLimit((int) limit);
-
         Map<String, Object> params = new LinkedHashMap<>();
         params.put("source", source);
         params.put("target", target);
         params.put("label", edgeLabel);
-        params.put("sortValues", sortValues);
-        params.put("limit", limit);
+        if (Strings.isEmpty(sortValues)){
+            params.put("sortValues", sortValues);
+        }
+        if (null != limit){
+            params.put("limit", limit);
+        }
         RestResult result = this.client.get(this.path(), params);
         return result.readList(this.type(), Edge.class);
     }
diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
index b8b5b9ed3..06e651c79 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
@@ -544,6 +544,13 @@ public Iterator<Edge> iteratorEdges(Shard shard, int sizePerPage) {
 
     public List<Edge> edgeExistence(Object sourceId, Object targetId, String edgeLabel,
                                     String sortValues, int limit){
-        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, sortValues, limit);
+        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, sortValues, (long) limit);
+    }
+    public List<Edge> edgeExistence(Object sourceId, Object targetId){
+        return this.edgeExistenceAPI.get(sourceId, targetId, "", "", null);
+    }
+
+    public List<Edge> edgeExistence(Object sourceId, Object targetId, String edgeLabel){
+        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, null, null);
     }
 }
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
index 4d4fea2bb..714baa99b 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
@@ -44,7 +44,7 @@ public void testEdgeExistenceGet() {
         Object vadasId = getVertexId("person", "name", "vadas");
 
         List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId,
-                                      "knows", "", 100);
+                                      "knows", "", 100L);
 
         Assert.assertEquals(1, edges.size());
         String id = edges.get(0).id();
@@ -54,13 +54,13 @@ public void testEdgeExistenceGet() {
 
         Object lopId = getVertexId("software", "name", "lop");
 
-        edges = edgeExistenceAPI.get(lopId, vadasId, "knows", "", 100);
+        edges = edgeExistenceAPI.get(lopId, vadasId, "knows", "", 100L);
         Assert.assertEquals(0, edges.size());
 
         Object joshId = getVertexId("person", "name", "josh");
         Object rippleId = getVertexId("person", "name", "ripple");
 
-        edges = edgeExistenceAPI.get(joshId, rippleId, "created", "", 100);
+        edges = edgeExistenceAPI.get(joshId, rippleId, "created", "", 100L);
         Assert.assertEquals(1, edges.size());
     }
 }

From 780981dceddd5d9ac39e117f55790019fedd80ae Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Thu, 30 Nov 2023 19:07:10 +0800
Subject: [PATCH 04/20] fix: sortValues -> sort_values

---
 .../org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
index 0f0e2e979..a23ebf4ee 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
@@ -49,7 +49,7 @@ public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
         params.put("target", target);
         params.put("label", edgeLabel);
         if (Strings.isEmpty(sortValues)){
-            params.put("sortValues", sortValues);
+            params.put("sort_values", sortValues);
         }
         if (null != limit){
             params.put("limit", limit);

From 7cebd5e98ed0bd63e0c8b4723e9290c6427bf5f2 Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Sun, 3 Dec 2023 10:05:28 +0800
Subject: [PATCH 05/20] update commit_id

---
 .github/workflows/client-ci.yml | 9 +++------
 .github/workflows/hubble-ci.yml | 8 +++-----
 .github/workflows/loader-ci.yml | 7 ++-----
 .github/workflows/tools-ci.yml  | 2 +-
 4 files changed, 9 insertions(+), 17 deletions(-)

diff --git a/.github/workflows/client-ci.yml b/.github/workflows/client-ci.yml
index b8c19c706..a70375a16 100644
--- a/.github/workflows/client-ci.yml
+++ b/.github/workflows/client-ci.yml
@@ -1,7 +1,6 @@
 name: "hugegraph-client-ci"
 
 on:
-  workflow_dispatch:
   push:
     branches:
       - master
@@ -24,12 +23,11 @@ jobs:
     env:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-client/assembly/travis
-      # TODO: replace it with the (latest - n) commit id (n >= 15)
-      COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
+      COMMIT_ID: ed493f3093eab293a75cd2f539e29ca11fa6cd81
     strategy:
       fail-fast: false
       matrix:
-        JAVA_VERSION: [ '8' ]
+        JAVA_VERSION: ['8']
     steps:
       - name: Install JDK 8
         uses: actions/setup-java@v3
@@ -71,7 +69,6 @@ jobs:
           mvn test -Dtest=FuncTestSuite
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v3.0.0
         with:
-          token: ${{ secrets.CODECOV_TOKEN }}
           file: target/jacoco.xml
diff --git a/.github/workflows/hubble-ci.yml b/.github/workflows/hubble-ci.yml
index ea186d40a..493414b07 100644
--- a/.github/workflows/hubble-ci.yml
+++ b/.github/workflows/hubble-ci.yml
@@ -1,7 +1,6 @@
 name: "hugegraph-hubble-ci"
 
 on:
-  workflow_dispatch:
   push:
     branches:
       - master
@@ -23,8 +22,8 @@ on:
 
 env:
   TRAVIS_DIR: hugegraph-hubble/hubble-dist/assembly/travis
-  # TODO: replace it with the (latest - n) commit id (n >= 15)
-  COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
+  # TODO: need update it later (ed493f3093eab293a75cd2f539e29ca11fa6cd81)
+  COMMIT_ID: ed493f3093eab293a75cd2f539e29ca11fa6cd81
 
 jobs:
   hubble-ci:
@@ -114,7 +113,6 @@ jobs:
           hubble-dist/assembly/travis/run-api-test.sh
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v3.0.0
         with:
-          token: ${{ secrets.CODECOV_TOKEN }}
           file: target/site/jacoco/*.xml
diff --git a/.github/workflows/loader-ci.yml b/.github/workflows/loader-ci.yml
index 3c676302b..ffe72f46b 100644
--- a/.github/workflows/loader-ci.yml
+++ b/.github/workflows/loader-ci.yml
@@ -1,7 +1,6 @@
 name: "hugegraph-loader-ci"
 
 on:
-  workflow_dispatch:
   push:
     branches:
       - master
@@ -26,8 +25,7 @@ jobs:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-loader/assembly/travis
       STATIC_DIR: hugegraph-loader/assembly/static
-      # TODO: replace it with the (latest - n) commit id (n >= 15)
-      COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
+      COMMIT_ID: ed493f3093eab293a75cd2f539e29ca11fa6cd81
       DB_USER: root
       DB_PASS: root
       DB_DATABASE: load_test
@@ -76,7 +74,6 @@ jobs:
           mvn test -P kafka
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v3.0.0
         with:
-          token: ${{ secrets.CODECOV_TOKEN }}
           file: target/jacoco.xml
diff --git a/.github/workflows/tools-ci.yml b/.github/workflows/tools-ci.yml
index f00582b2e..2ba2b27be 100644
--- a/.github/workflows/tools-ci.yml
+++ b/.github/workflows/tools-ci.yml
@@ -25,7 +25,7 @@ jobs:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-tools/assembly/travis
       # TODO: could we use one param to unify it? or use a action template (could use one ci file)
-      COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
+      COMMIT_ID: ed493f3093eab293a75cd2f539e29ca11fa6cd81
     steps:
       - name: Install JDK 11
         uses: actions/setup-java@v3

From f8098a38d0f76afc0e0f6497cfca14f38da8bd2c Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Sun, 3 Dec 2023 10:22:16 +0800
Subject: [PATCH 06/20] fix: module dir

---
 .../assembly/travis/install-hugegraph-from-source.sh         | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh b/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh
index 2c9ea319e..3dc3dcdf9 100755
--- a/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh
+++ b/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh
@@ -32,9 +32,10 @@ git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 
 # TODO: lack incubator after apache package release (update it later)
+cd hugegraph-server
 TAR=$(echo apache-hugegraph-*.tar.gz)
-tar zxf "${TAR}" -C ../
-cd ../
+tar zxf "${TAR}" -C ../../
+cd ../../
 rm -rf "${GIT_DIR}"
 # TODO: lack incubator after apache package release (update it later)
 HTTP_SERVER_DIR=$(echo apache-hugegraph-*.*)

From 324055ab0db75286f1d0da816e08fb352e77f2a8 Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Mon, 4 Dec 2023 10:03:05 +0800
Subject: [PATCH 07/20] chore

---
 .../apache/hugegraph/api/traverser/EdgeExistenceAPI.java   | 4 ++--
 .../java/org/apache/hugegraph/driver/TraverserManager.java | 6 +++---
 .../hugegraph/api/traverser/EdgeExistenceAPITest.java      | 7 +++----
 3 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
index a23ebf4ee..8ea9ffcea 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
@@ -40,7 +40,7 @@ protected String type() {
     }
 
     public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
-                          String sortValues, Long limit) {
+                          String sortValues, int limit) {
         String source = GraphAPI.formatVertexId(sourceId, false);
         String target = GraphAPI.formatVertexId(targetId, false);
 
@@ -51,7 +51,7 @@ public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
         if (Strings.isEmpty(sortValues)){
             params.put("sort_values", sortValues);
         }
-        if (null != limit){
+        if (limit > 0){
             params.put("limit", limit);
         }
         RestResult result = this.client.get(this.path(), params);
diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
index 06e651c79..ad4ef8c3e 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
@@ -544,13 +544,13 @@ public Iterator<Edge> iteratorEdges(Shard shard, int sizePerPage) {
 
     public List<Edge> edgeExistence(Object sourceId, Object targetId, String edgeLabel,
                                     String sortValues, int limit){
-        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, sortValues, (long) limit);
+        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, sortValues, limit);
     }
     public List<Edge> edgeExistence(Object sourceId, Object targetId){
-        return this.edgeExistenceAPI.get(sourceId, targetId, "", "", null);
+        return this.edgeExistenceAPI.get(sourceId, targetId, "", "", -1);
     }
 
     public List<Edge> edgeExistence(Object sourceId, Object targetId, String edgeLabel){
-        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, null, null);
+        return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, null, -1);
     }
 }
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
index 714baa99b..fbbcba2de 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
@@ -43,8 +43,7 @@ public void testEdgeExistenceGet() {
         Object markoId = getVertexId("person", "name", "marko");
         Object vadasId = getVertexId("person", "name", "vadas");
 
-        List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId,
-                                      "knows", "", 100L);
+        List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId,"knows", "", 100);
 
         Assert.assertEquals(1, edges.size());
         String id = edges.get(0).id();
@@ -54,13 +53,13 @@ public void testEdgeExistenceGet() {
 
         Object lopId = getVertexId("software", "name", "lop");
 
-        edges = edgeExistenceAPI.get(lopId, vadasId, "knows", "", 100L);
+        edges = edgeExistenceAPI.get(lopId, vadasId, "knows", "", 100);
         Assert.assertEquals(0, edges.size());
 
         Object joshId = getVertexId("person", "name", "josh");
         Object rippleId = getVertexId("person", "name", "ripple");
 
-        edges = edgeExistenceAPI.get(joshId, rippleId, "created", "", 100L);
+        edges = edgeExistenceAPI.get(joshId, rippleId, "created", "", 100);
         Assert.assertEquals(1, edges.size());
     }
 }

From e57f62e9bfb765e9b922732c138cded523c3fe43 Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Mon, 4 Dec 2023 10:23:44 +0800
Subject: [PATCH 08/20] fix

---
 .../hubble-dist/assembly/travis/download-hugegraph.sh        | 5 +++--
 .../assembly/travis/install-hugegraph-from-source.sh         | 5 +++--
 .../assembly/travis/install-hugegraph-from-source.sh         | 5 +++--
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh b/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh
index 1a08376dd..ac4cf585c 100755
--- a/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh
+++ b/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh
@@ -32,7 +32,8 @@ git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 
 # TODO: lack incubator after apache package release (update it later)
+cd hugegraph-server
 TAR=$(echo apache-hugegraph-*.tar.gz)
-cp apache-hugegraph-*.tar.gz ../
-cd ../
+cp apache-hugegraph-*.tar.gz ../../
+cd ../../
 rm -rf "${GIT_DIR}"
diff --git a/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh b/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh
index 202f45691..61ea1c04f 100755
--- a/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh
+++ b/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh
@@ -29,8 +29,9 @@ cd hugegraph
 git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 # TODO: lack incubator after apache package release (update it later)
-mv apache-hugegraph-*.tar.gz ../
-cd ../
+cd hugegraph-server
+mv apache-hugegraph-*.tar.gz ../../
+cd ../../
 rm -rf hugegraph
 tar zxf apache-hugegraph-*.tar.gz
 
diff --git a/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh b/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh
index 45de8924c..0987dd739 100755
--- a/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh
+++ b/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh
@@ -31,9 +31,10 @@ git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 
 # TODO: lack incubator after apache package release (update it later)
+cd hugegraph-server
 TAR=$(echo apache-hugegraph-*.tar.gz)
-tar zxf "${TAR}" -C ../
-cd ../
+tar zxf "${TAR}" -C ../../
+cd ../../
 rm -rf "${GIT_DIR}"
 # TODO: lack incubator after apache package release (update it later)
 HTTP_SERVER_DIR=$(echo apache-hugegraph-*.*)

From a68ca8f3f5dd631ebba8c4b4f4da91751171f772 Mon Sep 17 00:00:00 2001
From: imbajin <jin@apache.org>
Date: Mon, 4 Dec 2023 16:13:27 +0800
Subject: [PATCH 09/20] revert commit ID & let it pass 100

---
 .github/workflows/client-ci.yml | 9 ++++++---
 .github/workflows/hubble-ci.yml | 8 +++++---
 .github/workflows/loader-ci.yml | 7 +++++--
 .github/workflows/tools-ci.yml  | 2 +-
 4 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/.github/workflows/client-ci.yml b/.github/workflows/client-ci.yml
index a70375a16..e8bda9e87 100644
--- a/.github/workflows/client-ci.yml
+++ b/.github/workflows/client-ci.yml
@@ -1,6 +1,7 @@
 name: "hugegraph-client-ci"
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - master
@@ -23,11 +24,12 @@ jobs:
     env:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-client/assembly/travis
-      COMMIT_ID: ed493f3093eab293a75cd2f539e29ca11fa6cd81
+      # TODO: replace it with the (latest - n) commit id (n >= 15)
+      COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
     strategy:
       fail-fast: false
       matrix:
-        JAVA_VERSION: ['8']
+        JAVA_VERSION: [ '8' ]
     steps:
       - name: Install JDK 8
         uses: actions/setup-java@v3
@@ -69,6 +71,7 @@ jobs:
           mvn test -Dtest=FuncTestSuite
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3.0.0
+        uses: codecov/codecov-action@v
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           file: target/jacoco.xml
diff --git a/.github/workflows/hubble-ci.yml b/.github/workflows/hubble-ci.yml
index 493414b07..ea186d40a 100644
--- a/.github/workflows/hubble-ci.yml
+++ b/.github/workflows/hubble-ci.yml
@@ -1,6 +1,7 @@
 name: "hugegraph-hubble-ci"
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - master
@@ -22,8 +23,8 @@ on:
 
 env:
   TRAVIS_DIR: hugegraph-hubble/hubble-dist/assembly/travis
-  # TODO: need update it later (ed493f3093eab293a75cd2f539e29ca11fa6cd81)
-  COMMIT_ID: ed493f3093eab293a75cd2f539e29ca11fa6cd81
+  # TODO: replace it with the (latest - n) commit id (n >= 15)
+  COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
 
 jobs:
   hubble-ci:
@@ -113,6 +114,7 @@ jobs:
           hubble-dist/assembly/travis/run-api-test.sh
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3.0.0
+        uses: codecov/codecov-action@v3
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           file: target/site/jacoco/*.xml
diff --git a/.github/workflows/loader-ci.yml b/.github/workflows/loader-ci.yml
index ffe72f46b..3c676302b 100644
--- a/.github/workflows/loader-ci.yml
+++ b/.github/workflows/loader-ci.yml
@@ -1,6 +1,7 @@
 name: "hugegraph-loader-ci"
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - master
@@ -25,7 +26,8 @@ jobs:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-loader/assembly/travis
       STATIC_DIR: hugegraph-loader/assembly/static
-      COMMIT_ID: ed493f3093eab293a75cd2f539e29ca11fa6cd81
+      # TODO: replace it with the (latest - n) commit id (n >= 15)
+      COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
       DB_USER: root
       DB_PASS: root
       DB_DATABASE: load_test
@@ -74,6 +76,7 @@ jobs:
           mvn test -P kafka
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3.0.0
+        uses: codecov/codecov-action@v3
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           file: target/jacoco.xml
diff --git a/.github/workflows/tools-ci.yml b/.github/workflows/tools-ci.yml
index 2ba2b27be..f00582b2e 100644
--- a/.github/workflows/tools-ci.yml
+++ b/.github/workflows/tools-ci.yml
@@ -25,7 +25,7 @@ jobs:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-tools/assembly/travis
       # TODO: could we use one param to unify it? or use a action template (could use one ci file)
-      COMMIT_ID: ed493f3093eab293a75cd2f539e29ca11fa6cd81
+      COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
     steps:
       - name: Install JDK 11
         uses: actions/setup-java@v3

From 3a822acadfa1cbb61713f3d97542ccf737dd45f8 Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Tue, 5 Dec 2023 11:11:47 +0800
Subject: [PATCH 10/20] fix

---
 .github/workflows/client-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/client-ci.yml b/.github/workflows/client-ci.yml
index e8bda9e87..b8c19c706 100644
--- a/.github/workflows/client-ci.yml
+++ b/.github/workflows/client-ci.yml
@@ -71,7 +71,7 @@ jobs:
           mvn test -Dtest=FuncTestSuite
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v
+        uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           file: target/jacoco.xml

From 1fabba70c633cc6656c6a1852d181055ab53fbcd Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Tue, 5 Dec 2023 11:16:10 +0800
Subject: [PATCH 11/20] Revert "fix"

This reverts commit 286cbf96583f63bab16a39089b9bedd044a76978.
---
 .../hubble-dist/assembly/travis/download-hugegraph.sh        | 5 ++---
 .../assembly/travis/install-hugegraph-from-source.sh         | 5 ++---
 .../assembly/travis/install-hugegraph-from-source.sh         | 5 ++---
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh b/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh
index ac4cf585c..1a08376dd 100755
--- a/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh
+++ b/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh
@@ -32,8 +32,7 @@ git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 
 # TODO: lack incubator after apache package release (update it later)
-cd hugegraph-server
 TAR=$(echo apache-hugegraph-*.tar.gz)
-cp apache-hugegraph-*.tar.gz ../../
-cd ../../
+cp apache-hugegraph-*.tar.gz ../
+cd ../
 rm -rf "${GIT_DIR}"
diff --git a/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh b/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh
index 61ea1c04f..202f45691 100755
--- a/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh
+++ b/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh
@@ -29,9 +29,8 @@ cd hugegraph
 git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 # TODO: lack incubator after apache package release (update it later)
-cd hugegraph-server
-mv apache-hugegraph-*.tar.gz ../../
-cd ../../
+mv apache-hugegraph-*.tar.gz ../
+cd ../
 rm -rf hugegraph
 tar zxf apache-hugegraph-*.tar.gz
 
diff --git a/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh b/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh
index 0987dd739..45de8924c 100755
--- a/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh
+++ b/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh
@@ -31,10 +31,9 @@ git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 
 # TODO: lack incubator after apache package release (update it later)
-cd hugegraph-server
 TAR=$(echo apache-hugegraph-*.tar.gz)
-tar zxf "${TAR}" -C ../../
-cd ../../
+tar zxf "${TAR}" -C ../
+cd ../
 rm -rf "${GIT_DIR}"
 # TODO: lack incubator after apache package release (update it later)
 HTTP_SERVER_DIR=$(echo apache-hugegraph-*.*)

From 86445e3ccb75d7484ec385bdd4e6f4ae538ad7eb Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Tue, 5 Dec 2023 11:16:34 +0800
Subject: [PATCH 12/20] Revert "fix: module dir"

This reverts commit a07c8648a744af34f8816015969271e7b290af51.
---
 .../assembly/travis/install-hugegraph-from-source.sh         | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh b/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh
index 3dc3dcdf9..2c9ea319e 100755
--- a/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh
+++ b/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh
@@ -32,10 +32,9 @@ git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 
 # TODO: lack incubator after apache package release (update it later)
-cd hugegraph-server
 TAR=$(echo apache-hugegraph-*.tar.gz)
-tar zxf "${TAR}" -C ../../
-cd ../../
+tar zxf "${TAR}" -C ../
+cd ../
 rm -rf "${GIT_DIR}"
 # TODO: lack incubator after apache package release (update it later)
 HTTP_SERVER_DIR=$(echo apache-hugegraph-*.*)

From ab81f9b259fe8dd0d30f5d1f946d7d4b57aeec96 Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Thu, 7 Dec 2023 23:29:49 +0800
Subject: [PATCH 13/20] fix

---
 .../apache/hugegraph/api/traverser/EdgeExistenceAPI.java   | 6 +++---
 .../hugegraph/api/traverser/EdgeExistenceAPITest.java      | 7 +++----
 2 files changed, 6 insertions(+), 7 deletions(-)

diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
index 8ea9ffcea..5ba68fb01 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
@@ -36,7 +36,7 @@ public EdgeExistenceAPI(RestClient client, String graph) {
 
     @Override
     protected String type() {
-        return "edgeexistence";
+        return "edgeexist";
     }
 
     public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
@@ -48,13 +48,13 @@ public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
         params.put("source", source);
         params.put("target", target);
         params.put("label", edgeLabel);
-        if (Strings.isEmpty(sortValues)){
+        if (!Strings.isEmpty(sortValues)){
             params.put("sort_values", sortValues);
         }
         if (limit > 0){
             params.put("limit", limit);
         }
         RestResult result = this.client.get(this.path(), params);
-        return result.readList(this.type(), Edge.class);
+        return result.readList("edges", Edge.class);
     }
 }
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
index fbbcba2de..96b334697 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
@@ -43,13 +43,12 @@ public void testEdgeExistenceGet() {
         Object markoId = getVertexId("person", "name", "marko");
         Object vadasId = getVertexId("person", "name", "vadas");
 
-        List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId,"knows", "", 100);
+        List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId,"knows", "7JJ3CeW0", 100);
 
         Assert.assertEquals(1, edges.size());
         String id = edges.get(0).id();
 
-        Assert.assertTrue(id.contains("marko"));
-        Assert.assertTrue(id.contains("vadas"));
+        Assert.assertTrue(id.contains("marko") && id.contains("vadas"));
 
         Object lopId = getVertexId("software", "name", "lop");
 
@@ -57,7 +56,7 @@ public void testEdgeExistenceGet() {
         Assert.assertEquals(0, edges.size());
 
         Object joshId = getVertexId("person", "name", "josh");
-        Object rippleId = getVertexId("person", "name", "ripple");
+        Object rippleId = getVertexId("software", "name", "ripple");
 
         edges = edgeExistenceAPI.get(joshId, rippleId, "created", "", 100);
         Assert.assertEquals(1, edges.size());

From 72df58cf48b3d9ff89183c4afac9472f44a8ce8a Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Sat, 9 Dec 2023 14:48:17 +0800
Subject: [PATCH 14/20] fix

---
 .../hugegraph/api/traverser/EdgeExistenceAPI.java    |  4 +---
 .../api/traverser/EdgeExistenceAPITest.java          | 12 +++++++++---
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
index 5ba68fb01..7f0df07b4 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
@@ -51,9 +51,7 @@ public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
         if (!Strings.isEmpty(sortValues)){
             params.put("sort_values", sortValues);
         }
-        if (limit > 0){
-            params.put("limit", limit);
-        }
+        params.put("limit", limit);
         RestResult result = this.client.get(this.path(), params);
         return result.readList("edges", Edge.class);
     }
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
index 96b334697..cea91c61d 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
@@ -43,12 +43,15 @@ public void testEdgeExistenceGet() {
         Object markoId = getVertexId("person", "name", "marko");
         Object vadasId = getVertexId("person", "name", "vadas");
 
-        List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId,"knows", "7JJ3CeW0", 100);
-
+        List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId,"", "", 100);
         Assert.assertEquals(1, edges.size());
+
+        String sortValues = edges.get(0).name();
+        edges = edgeExistenceAPI.get(markoId, vadasId,"knows", sortValues, 100);
         String id = edges.get(0).id();
 
-        Assert.assertTrue(id.contains("marko") && id.contains("vadas"));
+        Assert.assertEquals(1, edges.size());
+        Assert.assertTrue(id.contains("marko") && id.contains("vadas") && id.contains(sortValues));
 
         Object lopId = getVertexId("software", "name", "lop");
 
@@ -60,5 +63,8 @@ public void testEdgeExistenceGet() {
 
         edges = edgeExistenceAPI.get(joshId, rippleId, "created", "", 100);
         Assert.assertEquals(1, edges.size());
+
+        edges = edgeExistenceAPI.get(joshId, rippleId, "created", "", 0);
+        Assert.assertEquals(0, edges.size());
     }
 }

From 58b5112f4c5fa06ad2c1de71e0ac7032ed96fe4c Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Sat, 9 Dec 2023 19:10:39 +0800
Subject: [PATCH 15/20] update the commit_id  latest

---
 .github/workflows/client-ci.yml | 2 +-
 .github/workflows/hubble-ci.yml | 2 +-
 .github/workflows/loader-ci.yml | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/client-ci.yml b/.github/workflows/client-ci.yml
index b8c19c706..caccb4afc 100644
--- a/.github/workflows/client-ci.yml
+++ b/.github/workflows/client-ci.yml
@@ -25,7 +25,7 @@ jobs:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-client/assembly/travis
       # TODO: replace it with the (latest - n) commit id (n >= 15)
-      COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
+      COMMIT_ID: c997f35b0475e94a98748dda636cb9bfa78fda77
     strategy:
       fail-fast: false
       matrix:
diff --git a/.github/workflows/hubble-ci.yml b/.github/workflows/hubble-ci.yml
index ea186d40a..fd65a3b7b 100644
--- a/.github/workflows/hubble-ci.yml
+++ b/.github/workflows/hubble-ci.yml
@@ -24,7 +24,7 @@ on:
 env:
   TRAVIS_DIR: hugegraph-hubble/hubble-dist/assembly/travis
   # TODO: replace it with the (latest - n) commit id (n >= 15)
-  COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
+  COMMIT_ID: c997f35b0475e94a98748dda636cb9bfa78fda77
 
 jobs:
   hubble-ci:
diff --git a/.github/workflows/loader-ci.yml b/.github/workflows/loader-ci.yml
index 3c676302b..f87b1df5c 100644
--- a/.github/workflows/loader-ci.yml
+++ b/.github/workflows/loader-ci.yml
@@ -27,7 +27,7 @@ jobs:
       TRAVIS_DIR: hugegraph-loader/assembly/travis
       STATIC_DIR: hugegraph-loader/assembly/static
       # TODO: replace it with the (latest - n) commit id (n >= 15)
-      COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
+      COMMIT_ID: c997f35b0475e94a98748dda636cb9bfa78fda77
       DB_USER: root
       DB_PASS: root
       DB_DATABASE: load_test

From ed9725ed8fe29670a82d6077bdbc720c3166f5ac Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Sat, 9 Dec 2023 19:13:14 +0800
Subject: [PATCH 16/20] Revert "Revert "fix: module dir""

This reverts commit 86445e3ccb75d7484ec385bdd4e6f4ae538ad7eb.
---
 .../assembly/travis/install-hugegraph-from-source.sh         | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh b/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh
index 2c9ea319e..3dc3dcdf9 100755
--- a/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh
+++ b/hugegraph-client/assembly/travis/install-hugegraph-from-source.sh
@@ -32,9 +32,10 @@ git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 
 # TODO: lack incubator after apache package release (update it later)
+cd hugegraph-server
 TAR=$(echo apache-hugegraph-*.tar.gz)
-tar zxf "${TAR}" -C ../
-cd ../
+tar zxf "${TAR}" -C ../../
+cd ../../
 rm -rf "${GIT_DIR}"
 # TODO: lack incubator after apache package release (update it later)
 HTTP_SERVER_DIR=$(echo apache-hugegraph-*.*)

From c677b1c35d86dcddf653f9077ca2ee40391a6e2d Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Sat, 9 Dec 2023 19:14:01 +0800
Subject: [PATCH 17/20] Revert "Revert "fix""

This reverts commit 1fabba70c633cc6656c6a1852d181055ab53fbcd.
---
 .../hubble-dist/assembly/travis/download-hugegraph.sh        | 5 +++--
 .../assembly/travis/install-hugegraph-from-source.sh         | 5 +++--
 .../assembly/travis/install-hugegraph-from-source.sh         | 5 +++--
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh b/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh
index 1a08376dd..ac4cf585c 100755
--- a/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh
+++ b/hugegraph-hubble/hubble-dist/assembly/travis/download-hugegraph.sh
@@ -32,7 +32,8 @@ git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 
 # TODO: lack incubator after apache package release (update it later)
+cd hugegraph-server
 TAR=$(echo apache-hugegraph-*.tar.gz)
-cp apache-hugegraph-*.tar.gz ../
-cd ../
+cp apache-hugegraph-*.tar.gz ../../
+cd ../../
 rm -rf "${GIT_DIR}"
diff --git a/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh b/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh
index 202f45691..61ea1c04f 100755
--- a/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh
+++ b/hugegraph-loader/assembly/travis/install-hugegraph-from-source.sh
@@ -29,8 +29,9 @@ cd hugegraph
 git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 # TODO: lack incubator after apache package release (update it later)
-mv apache-hugegraph-*.tar.gz ../
-cd ../
+cd hugegraph-server
+mv apache-hugegraph-*.tar.gz ../../
+cd ../../
 rm -rf hugegraph
 tar zxf apache-hugegraph-*.tar.gz
 
diff --git a/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh b/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh
index 45de8924c..0987dd739 100755
--- a/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh
+++ b/hugegraph-tools/assembly/travis/install-hugegraph-from-source.sh
@@ -31,9 +31,10 @@ git checkout "${COMMIT_ID}"
 mvn package -DskipTests -Dmaven.javadoc.skip=true -ntp
 
 # TODO: lack incubator after apache package release (update it later)
+cd hugegraph-server
 TAR=$(echo apache-hugegraph-*.tar.gz)
-tar zxf "${TAR}" -C ../
-cd ../
+tar zxf "${TAR}" -C ../../
+cd ../../
 rm -rf "${GIT_DIR}"
 # TODO: lack incubator after apache package release (update it later)
 HTTP_SERVER_DIR=$(echo apache-hugegraph-*.*)

From c50ad36b67723cc156a92e3a1d3e4d48b896f7fd Mon Sep 17 00:00:00 2001
From: M <1216063060@qq.com>
Date: Sat, 9 Dec 2023 19:17:46 +0800
Subject: [PATCH 18/20] fix

---
 .github/workflows/tools-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/tools-ci.yml b/.github/workflows/tools-ci.yml
index f00582b2e..77c09692d 100644
--- a/.github/workflows/tools-ci.yml
+++ b/.github/workflows/tools-ci.yml
@@ -25,7 +25,7 @@ jobs:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-tools/assembly/travis
       # TODO: could we use one param to unify it? or use a action template (could use one ci file)
-      COMMIT_ID: be6ee386b9939dc6bd6fcbdf2274b8acc3a0a314
+      COMMIT_ID: c997f35b0475e94a98748dda636cb9bfa78fda77
     steps:
       - name: Install JDK 11
         uses: actions/setup-java@v3

From 614bf4d8ad1bbdc2ba3eec51badbf63680253e7e Mon Sep 17 00:00:00 2001
From: imbajin <jin@apache.org>
Date: Tue, 12 Dec 2023 12:58:42 +0800
Subject: [PATCH 19/20] Update client-go-ci.yml

---
 .github/workflows/client-go-ci.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/client-go-ci.yml b/.github/workflows/client-go-ci.yml
index 2a941a0d0..b29b6304f 100644
--- a/.github/workflows/client-go-ci.yml
+++ b/.github/workflows/client-go-ci.yml
@@ -23,7 +23,8 @@ jobs:
     env:
       USE_STAGE: 'true' # Whether to include the stage repository.
       TRAVIS_DIR: hugegraph-client/assembly/travis
-      COMMIT_ID: bfe9fae150446857412db23ada0dae9d05035837
+      # TODO: replace it with the (latest - n) commit id (n >= 15)
+      COMMIT_ID: b52517c
     strategy:
       fail-fast: false
       matrix:

From a639a1b79c9f292a32ccfcb423040d621f77b6e9 Mon Sep 17 00:00:00 2001
From: imbajin <jin@apache.org>
Date: Tue, 12 Dec 2023 15:11:46 +0800
Subject: [PATCH 20/20] fix style & check version

---
 .../api/traverser/EdgeExistenceAPI.java       |  3 +-
 .../hugegraph/driver/TraverserManager.java    | 53 ++++++++++---------
 .../org/apache/hugegraph/api/BaseApiTest.java |  9 ++--
 .../api/traverser/EdgeExistenceAPITest.java   |  6 +--
 4 files changed, 36 insertions(+), 35 deletions(-)

diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
index 7f0df07b4..a62a7972c 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPI.java
@@ -41,6 +41,7 @@ protected String type() {
 
     public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
                           String sortValues, int limit) {
+        this.client.checkApiVersion("0.70", "count");
         String source = GraphAPI.formatVertexId(sourceId, false);
         String target = GraphAPI.formatVertexId(targetId, false);
 
@@ -48,7 +49,7 @@ public List<Edge> get(Object sourceId, Object targetId, String edgeLabel,
         params.put("source", source);
         params.put("target", target);
         params.put("label", edgeLabel);
-        if (!Strings.isEmpty(sortValues)){
+        if (!Strings.isEmpty(sortValues)) {
             params.put("sort_values", sortValues);
         }
         params.put("limit", limit);
diff --git a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
index 571e90f6f..580813426 100644
--- a/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
+++ b/hugegraph-client/src/main/java/org/apache/hugegraph/driver/TraverserManager.java
@@ -77,29 +77,29 @@
 public class TraverserManager {
 
     private final GraphManager graphManager;
-    private JaccardSimilarityAPI jaccardSimilarityAPI;
-    private SameNeighborsAPI sameNeighborsAPI;
-    private ShortestPathAPI shortestPathAPI;
-    private AllShortestPathsAPI allShortestPathsAPI;
-    private SingleSourceShortestPathAPI singleSourceShortestPathAPI;
-    private WeightedShortestPathAPI weightedShortestPathAPI;
-    private MultiNodeShortestPathAPI multiNodeShortestPathAPI;
-    private PathsAPI pathsAPI;
-    private CrosspointsAPI crosspointsAPI;
-    private KoutAPI koutAPI;
-    private KneighborAPI kneighborAPI;
-    private CountAPI countAPI;
-    private RingsAPI ringsAPI;
-    private RaysAPI raysAPI;
-    private CustomizedPathsAPI customizedPathsAPI;
-    private CustomizedCrosspointsAPI customizedCrosspointsAPI;
-    private TemplatePathsAPI templatePathsAPI;
-    private FusiformSimilarityAPI fusiformSimilarityAPI;
-    private NeighborRankAPI neighborRankAPI;
-    private PersonalRankAPI personalRankAPI;
-    private VerticesAPI verticesAPI;
-    private EdgesAPI edgesAPI;
-    private EdgeExistenceAPI edgeExistenceAPI;
+    private final JaccardSimilarityAPI jaccardSimilarityAPI;
+    private final SameNeighborsAPI sameNeighborsAPI;
+    private final ShortestPathAPI shortestPathAPI;
+    private final AllShortestPathsAPI allShortestPathsAPI;
+    private final SingleSourceShortestPathAPI singleSourceShortestPathAPI;
+    private final WeightedShortestPathAPI weightedShortestPathAPI;
+    private final MultiNodeShortestPathAPI multiNodeShortestPathAPI;
+    private final PathsAPI pathsAPI;
+    private final CrosspointsAPI crosspointsAPI;
+    private final KoutAPI koutAPI;
+    private final KneighborAPI kneighborAPI;
+    private final CountAPI countAPI;
+    private final RingsAPI ringsAPI;
+    private final RaysAPI raysAPI;
+    private final CustomizedPathsAPI customizedPathsAPI;
+    private final CustomizedCrosspointsAPI customizedCrosspointsAPI;
+    private final TemplatePathsAPI templatePathsAPI;
+    private final FusiformSimilarityAPI fusiformSimilarityAPI;
+    private final NeighborRankAPI neighborRankAPI;
+    private final PersonalRankAPI personalRankAPI;
+    private final VerticesAPI verticesAPI;
+    private final EdgesAPI edgesAPI;
+    private final EdgeExistenceAPI edgeExistenceAPI;
 
     public TraverserManager(RestClient client, GraphManager graphManager) {
         this.graphManager = graphManager;
@@ -545,14 +545,15 @@ public Iterator<Edge> iteratorEdges(Shard shard, int sizePerPage) {
     }
 
     public List<Edge> edgeExistence(Object sourceId, Object targetId, String edgeLabel,
-                                    String sortValues, int limit){
+                                    String sortValues, int limit) {
         return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, sortValues, limit);
     }
-    public List<Edge> edgeExistence(Object sourceId, Object targetId){
+
+    public List<Edge> edgeExistence(Object sourceId, Object targetId) {
         return this.edgeExistenceAPI.get(sourceId, targetId, "", "", -1);
     }
 
-    public List<Edge> edgeExistence(Object sourceId, Object targetId, String edgeLabel){
+    public List<Edge> edgeExistence(Object sourceId, Object targetId, String edgeLabel) {
         return this.edgeExistenceAPI.get(sourceId, targetId, edgeLabel, null, -1);
     }
 }
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/BaseApiTest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/BaseApiTest.java
index aca50e25a..c6570149b 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/BaseApiTest.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/BaseApiTest.java
@@ -31,7 +31,6 @@
 import org.apache.hugegraph.api.schema.SchemaAPI;
 import org.apache.hugegraph.api.schema.VertexLabelAPI;
 import org.apache.hugegraph.api.task.TaskAPI;
-import org.apache.hugegraph.api.traverser.EdgeExistenceAPI;
 import org.apache.hugegraph.api.variables.VariablesAPI;
 import org.apache.hugegraph.api.version.VersionAPI;
 import org.apache.hugegraph.client.RestClient;
@@ -121,25 +120,25 @@ protected static void clearData() {
         indexLabelAPI.list().forEach(indexLabel -> {
             ilTaskIds.add(indexLabelAPI.delete(indexLabel.name()));
         });
-        ilTaskIds.forEach(taskId -> waitUntilTaskCompleted(taskId));
+        ilTaskIds.forEach(BaseApiTest::waitUntilTaskCompleted);
 
         List<Long> elTaskIds = new ArrayList<>();
         edgeLabelAPI.list().forEach(edgeLabel -> {
             elTaskIds.add(edgeLabelAPI.delete(edgeLabel.name()));
         });
-        elTaskIds.forEach(taskId -> waitUntilTaskCompleted(taskId));
+        elTaskIds.forEach(BaseApiTest::waitUntilTaskCompleted);
 
         List<Long> vlTaskIds = new ArrayList<>();
         vertexLabelAPI.list().forEach(vertexLabel -> {
             vlTaskIds.add(vertexLabelAPI.delete(vertexLabel.name()));
         });
-        vlTaskIds.forEach(taskId -> waitUntilTaskCompleted(taskId));
+        vlTaskIds.forEach(BaseApiTest::waitUntilTaskCompleted);
 
         List<Long> pkTaskIds = new ArrayList<>();
         propertyKeyAPI.list().forEach(propertyKey -> {
             pkTaskIds.add(propertyKeyAPI.delete(propertyKey.name()));
         });
-        pkTaskIds.forEach(taskId -> waitUntilTaskCompleted(taskId));
+        pkTaskIds.forEach(BaseApiTest::waitUntilTaskCompleted);
 
         // Clear system
         taskAPI.list(null, -1).forEach(task -> {
diff --git a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
index cea91c61d..ff46066c0 100644
--- a/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
+++ b/hugegraph-client/src/test/java/org/apache/hugegraph/api/traverser/EdgeExistenceAPITest.java
@@ -26,7 +26,7 @@
 
 import java.util.List;
 
-public class EdgeExistenceAPITest extends TraverserApiTest{
+public class EdgeExistenceAPITest extends TraverserApiTest {
 
     @BeforeClass
     public static void prepareSchemaAndGraph() {
@@ -43,11 +43,11 @@ public void testEdgeExistenceGet() {
         Object markoId = getVertexId("person", "name", "marko");
         Object vadasId = getVertexId("person", "name", "vadas");
 
-        List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId,"", "", 100);
+        List<Edge> edges = edgeExistenceAPI.get(markoId, vadasId, "", "", 100);
         Assert.assertEquals(1, edges.size());
 
         String sortValues = edges.get(0).name();
-        edges = edgeExistenceAPI.get(markoId, vadasId,"knows", sortValues, 100);
+        edges = edgeExistenceAPI.get(markoId, vadasId, "knows", sortValues, 100);
         String id = edges.get(0).id();
 
         Assert.assertEquals(1, edges.size());