Update gradle toolchain to Java 21

Author: xiang17

.github/workflows/build-common.yml

@@ -228,11 +228,11 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - name: Set up Java 17
+      - name: Set up Java 21
         uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 17
+          java-version: 21
 
       - name: Build and install local azure-monitor-opentelemetry-autoconfigure dependency
         if: env.AZURE_MONITOR_OPENTELEMETRY_AUTOCONFIGURE_SNAPSHOT != ''

.github/workflows/codeql-daily.yml

@@ -20,11 +20,11 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - name: Set up Java 17
+      - name: Set up Java 21
         uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 17
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v5
@@ -54,11 +54,11 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - name: Set up Java 17 (required for JNI compilation)
+      - name: Set up Java 21 (required for JNI compilation)
         uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 17
+          java-version: 21
 
       - name: Setup Visual Studio Build Tools
         uses: microsoft/setup-msbuild@v2

.github/workflows/owasp-dependency-check-daily.yml

@@ -13,11 +13,11 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - name: Set up Java 17
+      - name: Set up Java 21
         uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 17
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v5

buildSrc/src/main/kotlin/ai.java-conventions.gradle.kts

@@ -19,7 +19,7 @@ repositories {
 
 java {
   toolchain {
-    languageVersion.set(JavaLanguageVersion.of(17))
+    languageVersion.set(JavaLanguageVersion.of(21))
   }
 
   // See https://docs.gradle.org/current/userguide/upgrading_version_5.html, Automatic target JVM version

buildSrc/src/main/kotlin/ai.smoke-test.gradle.kts

@@ -24,7 +24,7 @@ configurations["smokeTestRuntimeOnly"].extendsFrom(configurations.runtimeOnly.ge
 // FIXME (trask) copy-pasted from ai.java-conventions.gradle
 java {
   toolchain {
-    languageVersion.set(JavaLanguageVersion.of(17))
+    languageVersion.set(JavaLanguageVersion.of(21))
   }
 
   // See https://docs.gradle.org/current/userguide/upgrading_version_5.html, Automatic target JVM version

smoke-tests/apps/DiagnosticExtension/MockExtension/build.gradle.kts

@@ -10,7 +10,7 @@ dependencies {
 
 java {
   toolchain {
-    languageVersion.set(JavaLanguageVersion.of(17))
+    languageVersion.set(JavaLanguageVersion.of(21))
   }
 }
 

smoke-tests/apps/Diagnostics/JfrFileReader/build.gradle.kts

@@ -8,7 +8,7 @@ dependencies {
 
 java {
   toolchain {
-    languageVersion.set(JavaLanguageVersion.of(17))
+    languageVersion.set(JavaLanguageVersion.of(21))
   }
 }