Use supported versions

Author: sappenin

.github/workflows/workflow.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Set up JDK 8
         uses: actions/setup-java@v4
         with:
-          distribution: 'oracle'
+          distribution: 'temurin'
           java-version: '8'
           cache: 'maven'
       - name: Build
@@ -35,7 +35,7 @@ jobs:
       - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          distribution: 'oracle'
+          distribution: 'temurin'
           java-version: '21'
           cache: 'maven'
       # Set up Android
@@ -49,15 +49,15 @@ jobs:
     strategy:
       matrix:
         # test against each major Java version
-        java: [ 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 ]
+        java: [ 11, 15, 16, 17, 21, 23 ]
     steps:
       # Checks-out the repository under $GITHUB_WORKSPACE
       - uses: actions/checkout@v4
       # Set up Java version
       - name: Set up JDK ${{ matrix.java }}
         uses: actions/setup-java@v4
         with:
-          distribution: 'oracle'
+          distribution: 'temurin'
           java-version: ${{ matrix.java }}
           cache: 'maven'
       - name: Build
@@ -67,11 +67,11 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v4
-      # Set up Adopt OpenJDK Hotspot 16
-      - name: Set up OpenJDK 16
+      # Set up Temurin 21
+      - name: Set up OpenJDK 21
         uses: actions/setup-java@v4
         with:
-          distribution: 'oracle'
+          distribution: 'temurin'
           java-version: 21
           cache: 'maven'
       # Maven install with JVM locale = de_DE
@@ -87,7 +87,7 @@ jobs:
       - name: Set up JDK 8
         uses: actions/setup-java@v4
         with:
-          distribution: 'oracle'
+          distribution: 'temurin'
           java-version: '8'
           cache: 'maven'
       - name: Build
@@ -102,7 +102,7 @@ jobs:
       - name: Set up JDK 8
         uses: actions/setup-java@v4
         with:
-          distribution: 'oracle'
+          distribution: 'temurin'
           java-version: '8'
           cache: 'maven' # setup-java v4 includes maven caching
       - name: Build
@@ -116,7 +116,7 @@ jobs:
       - name: Set up JDK 8
         uses: actions/setup-java@v4
         with:
-          distribution: 'oracle'
+          distribution: 'temurin'
           java-version: '8'
           cache: 'maven'
       - name: Build