CI: use JDK 21

Author: sstone

.github/workflows/release.yml

@@ -78,10 +78,10 @@ jobs:
         if: matrix.os == 'macOS-latest'
         run: |
           echo "skip.android=true" > local.properties
-      - name: Set up JDK 11
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: 17
+          java-version: 21
           distribution: 'adopt'
       - name: Check JVM
         if: matrix.os != 'windows-latest'

.github/workflows/snapshot.yml

@@ -87,10 +87,10 @@ jobs:
         if: matrix.os == 'macOS-latest'
         run: |
           echo "skip.android=true" > local.properties
-      - name: Set up JDK 11
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: 17
+          java-version: 21
           distribution: 'adopt'
       - name: Check JVM
         if: matrix.os != 'windows-latest'

.github/workflows/test.yml

@@ -93,10 +93,10 @@ jobs:
         if: matrix.os == 'macOS-latest'
         run: |
           echo "skip.android=true" > local.properties
-      - name: Set up JDK 11
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: 17
+          java-version: 21
           distribution: 'adopt'
       - name: Check JVM
         if: matrix.os != 'windows-latest'