Upgrade embedded JRE to Java 25

.github/workflows/pr-verify.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Set Up Java
         uses: actions/setup-java@v4
         with:
-          java-version: '21'
+          java-version: '25'
           distribution: 'temurin'
       - run: npm install -g typescript "@vscode/vsce"
       - run: wget http://download.eclipse.org/jdtls/snapshots/jdt-language-server-latest.tar.gz

.github/workflows/release.yml

@@ -81,7 +81,7 @@ jobs:
       - name: Set Up Java
         uses: actions/setup-java@v5
         with:
-          java-version: '21'
+          java-version: '25'
           distribution: 'temurin'
       - name: Build JDT-LS
         if: "${{ inputs.JDT_LS_VERSION == '' }}"
@@ -140,7 +140,7 @@ jobs:
           # Package for each platform (only downloads JDK and creates VSIX, no recompilation)
           platforms=("win32-x64" "win32-arm64" "linux-x64" "linux-arm64" "darwin-x64" "darwin-arm64")
           for platform in ${platforms[@]}; do
-            npm run download-jre -- --target ${platform} --javaVersion 21
+            npm run download-jre -- --target ${platform} --javaVersion 25
             SKIP_WEBPACK=true vsce package ${{ env.publishPreReleaseFlag }} --target ${platform} -o java-${platform}-${{ env.EXT_VERSION }}-${GITHUB_RUN_NUMBER}.vsix
           done
 

.sdkmanrc

@@ -1,3 +1,3 @@
 # Enable auto-env through the sdkman_auto_env config
 # Add key=value pairs of SDKs to use below
-java=21.0.5-tem
+java=25.0.2-tem

README.md

@@ -15,7 +15,7 @@ Quick Start
 ============
 1. Install the Extension
 2. On the following platforms, the extension should activate without any setup : `win32-x64`, `win32-arm64`, `darwin-x64`, `darwin-arm64`, `linux-x64`, `linux-arm64`.\
-If on another platform, or using the "universal" version, you can [set](#setting-the-jdk) a _Java_ Development Kit. It must be Java 21 or above.
+If on another platform, or using the "universal" version, you can [set](#setting-the-jdk) a _Java_ Development Kit. It must be Java 25 or above.
 3. Optionally, download and install a Java Development Kit for your project (Java 1.8 or above is supported). See [Project JDKs](#project-jdks) for more details
 4. Extension is activated when you first access a Java file
     * Recognizes projects with *Maven* or *Gradle* build files in the directory hierarchy.
@@ -61,7 +61,7 @@ Now that Java extension will publish platform specific versions, it will embed a
 
 The following part is only kept for the universal version without embedded JRE.
 
->The tooling JDK will be used to launch the Language Server for Java. And by default, will also be used to compile your projects. Java 21 is the minimum required version.\
+>The tooling JDK will be used to launch the Language Server for Java. And by default, will also be used to compile your projects. Java 25 is the minimum required version.\
 \
 The path to the Java Development Kit can be specified by the `java.jdt.ls.java.home` setting in VS Code settings (workspace/user settings). If not specified, it is searched in the following order until a JDK meets current minimum requirement.
 >- the `JDK_HOME` environment variable

package.json

@@ -316,7 +316,7 @@
               "null"
             ],
             "default": null,
-            "description": "Specifies the folder path to the JDK (21 or more recent) used to launch the Java Language Server.\nOn Windows, backslashes must be escaped, i.e.\n\"java.home\":\"C:\\\\Program Files\\\\Java\\\\jdk-21.0_5\"",
+            "description": "Specifies the folder path to the JDK (25 or more recent) used to launch the Java Language Server.\nOn Windows, backslashes must be escaped, i.e.\n\"java.home\":\"C:\\\\Program Files\\\\Java\\\\jdk-25.0.2\"",
             "scope": "machine-overridable",
             "deprecationMessage": "This setting is deprecated, please use 'java.jdt.ls.java.home' instead.",
             "order": 0
@@ -327,7 +327,7 @@
               "null"
             ],
             "default": null,
-            "description": "Specifies the folder path to the JDK (21 or more recent) used to launch the Java Language Server. This setting will replace the Java extension's embedded JRE to start the Java Language Server. \n\nOn Windows, backslashes must be escaped, i.e.\n\"java.jdt.ls.java.home\":\"C:\\\\Program Files\\\\Java\\\\jdk-21.0_5\"",
+            "description": "Specifies the folder path to the JDK (25 or more recent) used to launch the Java Language Server. This setting will replace the Java extension's embedded JRE to start the Java Language Server. \n\nOn Windows, backslashes must be escaped, i.e.\n\"java.jdt.ls.java.home\":\"C:\\\\Program Files\\\\Java\\\\jdk-25.0.2\"",
             "scope": "machine-overridable",
             "order": 10
           },

scripts/index.mjs

@@ -113,7 +113,7 @@ Commands:
     repo-fix                            Fix package-lock.json registry references
 
 Examples:
-  node scripts/index.js download-jre --target darwin-x64 --javaVersion 21
+  node scripts/index.js download-jre --target darwin-x64 --javaVersion 25
   node scripts/index.js build-or-download
   node scripts/index.js watch-server
             `);

scripts/jre.mjs

@@ -7,7 +7,7 @@ import { downloadFile, getScriptDir, extractTarGz, handleError, setupMainExecuti
 
 const dirname = getScriptDir();
 
-const LATEST_JRE = 21;
+const LATEST_JRE = 25;
 
 const platformMapping = {
     "linux-arm64": "linux-aarch64",

src/requirements.ts

@@ -9,7 +9,6 @@ import { Commands } from './commands';
 import { logger } from './log';
 import { checkJavaPreferences } from './settings';
 import { listJdks, sortJdksBySource, sortJdksByVersion } from './jdkUtils';
-import { getJavaConfiguration } from './utils';
 
 /* eslint-disable @typescript-eslint/naming-convention */
 export interface RequirementsData {
@@ -41,7 +40,7 @@ export async function resolveRequirements(context: ExtensionContext): Promise<Re
         const preferenceName = javaPreferences.preference;
         let javaHome = javaPreferences.javaHome;
         let javaVersion: number = 0;
-        const REQUIRED_JDK_VERSION = ('on' === getJavaConfiguration().get('jdt.ls.javac.enabled'))?25:21;
+        const REQUIRED_JDK_VERSION = 25;
         if (toolingJreVersion < REQUIRED_JDK_VERSION) { // embedded tooling JRE doesn't meet requirement
             toolingJre = null;
             toolingJreVersion = 0;