Merge pull request #942 from komamitsu/fix-build

Fix build

Author: komamitsu

.github/workflows/ci.yml

@@ -19,7 +19,8 @@ jobs:
       with:
         distribution: temurin
         java-version: ${{ matrix.java_version }}
-        cache: 'gradle'
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v5
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
     - name: Run tests fluency-core
@@ -43,7 +44,8 @@ jobs:
       with:
         distribution: temurin
         java-version: ${{ matrix.java_version }}
-        cache: 'gradle'
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v5
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
     - name: Run tests fluency-fluentd-ext
@@ -62,7 +64,8 @@ jobs:
       with:
         distribution: temurin
         java-version: 17
-        cache: 'gradle'
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v5
     - name: Install local maven package
       run: |
         ./gradlew -p fluency-core publishToMavenLocal --stacktrace --info
@@ -87,7 +90,8 @@ jobs:
       with:
         distribution: temurin
         java-version: ${{ matrix.java_version }}
-        cache: 'gradle'
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v5
     - name: Remove m2 directory just in case
       run: rm -rf ~/.m2
     - name: Download local Maven package prepared above
@@ -114,7 +118,8 @@ jobs:
       with:
         distribution: temurin
         java-version: ${{ matrix.java_version }}
-        cache: 'gradle'
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@v5
     - name: Install local maven package
       run: |
         ./gradlew publishToMavenLocal --stacktrace --info

.github/workflows/release.yml

@@ -19,7 +19,11 @@ jobs:
       uses: actions/setup-java@v5
       with:
         distribution: temurin
-        java-version: 8
+        # Fluency uses java.nio.ByteBuffer which can cause inconsistent method signature issue between JDK 8 and 9.
+        # We've created Fluency jars using JDK 8 for that and we need to confirm an application built with JDK 9 or later
+        # can use Fluency jars built with JDK 8 without any problem.
+        # We're using --release option to build source code with JDK 8. So JDK 21 should work here.
+        java-version: 21
     - name: Setup Gradle
       uses: gradle/actions/setup-gradle@v5
     - name: Build