ci: force Gradle runtime JDK=21 to avoid Groovy ASM 69 issue; release: stage local artifacts for v2.1.0 (BiByte-2.1.0.jar, BiByte-latest.jar)

Author: mauriciomenon

.github/workflows/ci.yml

@@ -13,24 +13,29 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Set up Java 25 (runtime)
+      - name: Set up Java 21 (runtime)
+        id: java21
         uses: actions/setup-java@v4
         with:
           distribution: temurin
-          java-version: 25
+          java-version: 21
 
       - name: Set up Gradle 8.10.2
         uses: gradle/actions/setup-gradle@v3
         with:
           gradle-version: 8.10.2
 
       - name: Gradle Build (no caches, verbose)
+        env:
+          JAVA_HOME: ${{ steps.java21.outputs.path }}
+          GRADLE_JAVA_HOME: ${{ steps.java21.outputs.path }}
         run: |
+          echo JAVA_HOME=$JAVA_HOME
           gradle --version
           java -version
           # Retry once to mitigate transient infra/cache issues
-          gradle build -PjavaTarget=25 --no-daemon --no-configuration-cache --no-build-cache --stacktrace || \
-          (sleep 5 && gradle build -PjavaTarget=25 --no-daemon --no-configuration-cache --no-build-cache --stacktrace)
+          gradle build -PjavaTarget=21 --no-daemon --no-configuration-cache --no-build-cache --stacktrace || \
+          (sleep 5 && gradle build -PjavaTarget=21 --no-daemon --no-configuration-cache --no-build-cache --stacktrace)
 
       - name: Diagnostic (versions + stacktrace)
         run: |

.github/workflows/release-build.yml

@@ -43,7 +43,14 @@ jobs:
             echo "artifact=build/libs/*.jar" >> $GITHUB_OUTPUT
           fi
 
-      - name: Set up Java (runtime + toolchain)
+      - name: Set up Java 21 (runtime)
+        id: java21
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+
+      - name: Set up Java (toolchain target)
         uses: actions/setup-java@v4
         with:
           distribution: temurin
@@ -65,6 +72,9 @@ jobs:
 
       - name: Build with Gradle (no caches)
         if: steps.plan.outputs.build_system == 'gradle'
+        env:
+          JAVA_HOME: ${{ steps.java21.outputs.path }}
+          GRADLE_JAVA_HOME: ${{ steps.java21.outputs.path }}
         run: |
           gradle --version
           java -version