Build with jdk21

Author: laurit

.github/workflows/auto-update-otel-sdk.yml

@@ -69,7 +69,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1

.github/workflows/build-common.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1
@@ -68,7 +68,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1
@@ -138,7 +138,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Increase gradle daemon heap size
         run: |
@@ -220,7 +220,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       # vaadin 14 tests fail with node 18
       - name: Set up Node
@@ -335,7 +335,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Set up Gradle cache
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1
@@ -388,7 +388,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1
@@ -411,7 +411,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Set up Gradle cache
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1

.github/workflows/build.yml

@@ -70,7 +70,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1

.github/workflows/codeql-daily.yml

@@ -27,7 +27,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@8f596b4ae3cb3c588a5c46780b86dd53fef16c52 # v3.25.2

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

@@ -22,7 +22,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Increase gradle daemon heap size
         run: |

.github/workflows/pr-smoke-test-fake-backend-images.yml

@@ -22,7 +22,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1
@@ -49,7 +49,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1

.github/workflows/pr-smoke-test-servlet-images.yml

@@ -40,7 +40,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Set up Gradle cache
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1

.github/workflows/publish-smoke-test-fake-backend-images.yml

@@ -22,7 +22,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Login to GitHub package registry
         uses: docker/login-action@v3
@@ -55,7 +55,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Login to GitHub package registry
         uses: azure/docker-login@v1

.github/workflows/publish-smoke-test-servlet-images.yml

@@ -57,7 +57,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Login to GitHub package registry
         uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20 # v3.1.0

.github/workflows/release.yml

@@ -83,7 +83,7 @@ jobs:
       - uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1

.github/workflows/reusable-muzzle.yml

@@ -31,7 +31,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@750cdda3edd6d51b7fdfc069d2e2818cf3c44f4c # v3.3.1

.github/workflows/reusable-smoke-test-images.yml

@@ -47,7 +47,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Login to GitHub package registry
         if: inputs.publish

.github/workflows/reusable-test-indy.yml

@@ -39,7 +39,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Increase gradle daemon heap size
         run: |

.github/workflows/reusable-test-latest-deps.yml

@@ -38,7 +38,7 @@ jobs:
         uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
           distribution: temurin
-          java-version: 17.0.6
+          java-version: 21
 
       - name: Increase gradle daemon heap size
         run: |

CONTRIBUTING.md

@@ -8,7 +8,7 @@ and discuss your ideas or propose the changes you wish to make.
 
 ## Building
 
-This project requires Java 17 to build and run tests. Newer JDK's may work, but this version is used in CI.
+This project requires Java 21 to build and run tests. Newer JDK's may work, but this version is used in CI.
 
 Some instrumentations and tests may put constraints on which java versions they support.
 See [Running the tests](./docs/contributing/running-tests.md) for more details.
@@ -22,7 +22,7 @@ the Sonatype OSS snapshots repository at `https://oss.sonatype.org/content/repos
 
 ### Building from source
 
-Build using Java 17:
+Build using Java 21:
 
 ```bash
 java -version

custom-checks/build.gradle.kts

@@ -36,6 +36,8 @@ tasks {
           "--add-exports",
           "jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED",
           "--add-exports",
+          "jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED",
+          "--add-exports",
           "jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED",
           "--add-exports",
           "jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED",