java 21

Author: samfreund

.github/workflows/build.yml

@@ -45,10 +45,9 @@ jobs:
   #         fetch-depth: 0
   #     - name: Fetch tags
   #       run: git fetch --tags --force
-  #     - name: Install Java 17
-  #       uses: actions/setup-java@v5
+  #     - uses: actions/setup-java@v5
   #       with:
-  #         java-version: 17
+  #         java-version: 21
   #         distribution: temurin
   #     - name: Install SystemCore Toolchain
   #       run: ./gradlew installSystemCoreToolchain
@@ -104,10 +103,9 @@ jobs:
           fetch-depth: 0
       - name: Fetch tags
         run: git fetch --tags --force
-      - name: Install Java 17
-        uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
       - name: Install pnpm
         uses: pnpm/action-setup@v4
@@ -145,10 +143,9 @@ jobs:
           fetch-depth: 0
       - name: Fetch tags
         run: git fetch --tags --force
-      - name: Install Java 17
-        uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
       - name: Install pnpm
         uses: pnpm/action-setup@v4
@@ -198,10 +195,9 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Install Java 17
-        uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
 
       # grab all tags
@@ -240,10 +236,9 @@ jobs:
       - uses: actions/checkout@v6
         with:
           fetch-depth: 0
-      - name: Install Java 17
-        uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
       - run: git fetch --tags --force
       - run: ./gradlew photon-targeting:build photon-lib:build
@@ -347,10 +342,9 @@ jobs:
       - uses: actions/checkout@v6
         with:
           fetch-depth: 0
-      - name: Install Java 17
-        uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
       - name: Install pnpm
         uses: pnpm/action-setup@v4
@@ -435,10 +429,9 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - name: Install Java 17
-        uses: actions/setup-java@v5
+      - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
       - uses: actions/download-artifact@v7
         with:

.github/workflows/dependency-submission.yml

@@ -13,10 +13,9 @@ jobs:
     steps:
     - name: Checkout sources
       uses: actions/checkout@v6
-    - name: Setup Java
-      uses: actions/setup-java@v5
+    - uses: actions/setup-java@v5
       with:
         distribution: 'temurin'
-        java-version: 17
+        java-version: 21
     - name: Generate and submit dependency graph
       uses: gradle/actions/dependency-submission@v5

.github/workflows/lint-format.yml

@@ -61,7 +61,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-java@v5
         with:
-          java-version: 17
+          java-version: 21
           distribution: temurin
       - run: |
           set +e

.github/workflows/photon-api-docs.yml

@@ -60,10 +60,9 @@ jobs:
         fetch-depth: 0
     - name: Fetch tags
       run: git fetch --tags --force
-    - name: Install Java 17
-      uses: actions/setup-java@v5
+    - uses: actions/setup-java@v5
       with:
-        java-version: 17
+        java-version: 21
         distribution: temurin
     - name: Build javadocs/doxygen
       run: |

photon-docs/build.gradle

@@ -119,7 +119,7 @@ task generateJavaDocs(type: Javadoc) {
     source exportedProjects.collect { project(it).sourceSets.main.allJava }
     classpath = files(exportedProjects.collect { project(it).sourceSets.main.compileClasspath })
 
-    options.links "https://docs.oracle.com/en/java/javase/17/docs/api/", "https://github.wpilib.org/allwpilib/docs/release/java/"
+    options.links "https://docs.oracle.com/en/java/javase/21/docs/api/", "https://github.wpilib.org/allwpilib/docs/release/java/"
     options.addStringOption("tag", "pre:a:Pre-Condition")
     options.addBooleanOption("Xdoclint:html,missing,reference,syntax", true)
     options.addBooleanOption('html5', true)

shared/common.gradle

@@ -3,8 +3,11 @@ apply plugin: "java"
 apply plugin: "jacoco"
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
 }
 
 wpilibTools.deps.wpilibVersion = wpilibVersion

shared/javacommon.gradle

@@ -4,8 +4,11 @@ apply plugin: 'jacoco'
 apply plugin: 'com.google.protobuf'
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
 }
 
 def baseArtifactId = nativeName