diff --git a/.github/workflows/ion-java-performance-regression-detector.yml b/.github/workflows/ion-java-performance-regression-detector.yml
index 277ccff505..7e179f113d 100644
--- a/.github/workflows/ion-java-performance-regression-detector.yml
+++ b/.github/workflows/ion-java-performance-regression-detector.yml
@@ -3,13 +3,16 @@
 
 name: Ion Java performance regression detector
 
-on: [pull_request]
-
+on:
+  workflow_run:
+    workflows: [ PR Content Check ]
+    types:
+      - completed
 jobs:
   detect-regression:
     name: Detect Regression
-
     runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
 
     steps:
       - name: Set up JDK 1.8
@@ -18,7 +21,7 @@ jobs:
           java-version: 1.8
 
       - name: Checkout ion-java from the new commit.
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           path: ion-java-new
@@ -27,7 +30,7 @@ jobs:
         run: cd ion-java-new && git submodule init && git submodule update && ./gradlew clean publishToMavenLocal
 
       - name: Checkout ion-java-benchmark-cli
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: amzn/ion-java-benchmark-cli
           ref: master
@@ -70,7 +73,7 @@ jobs:
         run : rm -r /home/runner/.m2
 
       - name: Checkout the current commit
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: amzn/ion-java
           ref: master
diff --git a/.github/workflows/ion-test-driver.yml b/.github/workflows/ion-test-driver.yml
index e39846aed3..40af32fafe 100644
--- a/.github/workflows/ion-test-driver.yml
+++ b/.github/workflows/ion-test-driver.yml
@@ -1,10 +1,14 @@
 name: ion-test-driver
 
-on: [pull_request]
-
+on:
+  workflow_run:
+    workflows: [ PR Content Check ]
+    types:
+      - completed
 jobs:
   ion-test-driver:
     runs-on: macos-10.15
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
     steps:
       - name: Checkout ion-java
         uses: actions/checkout@master
diff --git a/.github/workflows/pr-content-check.yml b/.github/workflows/pr-content-check.yml
new file mode 100644
index 0000000000..1c70e463f4
--- /dev/null
+++ b/.github/workflows/pr-content-check.yml
@@ -0,0 +1,26 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: PR Content Check
+
+on: [pull_request]
+
+jobs:
+  check-PR-content:
+    name: Check PR Content
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout the incoming pull request
+        uses: actions/checkout@v3
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+          fetch-depth: 0
+          path: ion-java-new
+
+      - name: Check the content of the last commit
+        id: check-content
+        run: |
+          cd ion-java-new
+          if [[ $(git log -1 --name-only) == *"src/"* ]]; then echo "result=pass"; else exit 1; fi
diff --git a/src/com/amazon/ion/impl/_Private_ByteTransferReader.java b/src/com/amazon/ion/impl/_Private_ByteTransferReader.java
index b1b9d95d35..7e7bc8428c 100644
--- a/src/com/amazon/ion/impl/_Private_ByteTransferReader.java
+++ b/src/com/amazon/ion/impl/_Private_ByteTransferReader.java
@@ -17,7 +17,7 @@
 
 import com.amazon.ion.IonReader;
 import java.io.IOException;
-
+// Test only
 /**
  * An {@link IonReader} {@linkplain com.amazon.ion.facet facet} that can rapidly bulk-copy
  * Ion binary data under certain circumstances.