Compile with Java 21 but retain Java 17 compatibility (#2320)

Author: stonesmi

.github/workflows/benchmark.yml

@@ -15,10 +15,10 @@ jobs:
         with:
           node-version: "20.x"
 
-      - name: Set up JDK 1.17
+      - name: Set up JDK
         uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520
         with:
-          java-version: 17
+          java-version: 21
           java-package: jdk
           distribution: temurin
           cache: 'maven'

.github/workflows/create-release.yml

@@ -36,7 +36,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520
         with:
-          java-version: 17
+          java-version: 21
           java-package: jdk
           distribution: temurin
           cache: 'maven'

.github/workflows/cve-scanning.yml

@@ -20,6 +20,14 @@ jobs:
       - name: Checkout
         uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
 
+      - name: Set up JDK
+        uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520
+        with:
+          java-version: 21
+          java-package: jdk
+          distribution: temurin
+          cache: 'maven'
+
       - name: Make mvnw executable
         run: chmod +x mvnw
 

.github/workflows/legal-report.yml

@@ -23,10 +23,10 @@ jobs:
     steps:
     - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
 
-    - name: Set up JDK 1.17
+    - name: Set up JDK
       uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520
       with:
-        java-version: 17
+        java-version: 21
         java-package: jdk
         distribution: temurin
         cache: 'maven'

.github/workflows/publish-to-maven-central.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520
         with:
-          java-version: 17
+          java-version: 21
           java-package: jdk
           distribution: temurin
           cache: 'maven'

pom.xml

@@ -37,7 +37,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.release>17</maven.compiler.release>
+        <maven.compiler.release>17</maven.compiler.release> <!-- Maintain 17 support until Q3 2027 -->
         <gpg.executable>gpg</gpg.executable>
         <publish.server.id>ossrh</publish.server.id>