Extension requires Java 21

Fixes #388

Signed-off-by: David Thompson <[email protected]>

README.md

@@ -40,7 +40,7 @@ In `Java` files, you will benefit with:
 ## Requirements
 
   * [Language Support for Java(TM) by Red Hat](https://marketplace.visualstudio.com/items?itemName=redhat.java)
-  * Java JDK (or JRE) 11 or more recent is required **except** on the following platforms : `win32-x64`, `linux-x64`, `linux-arm64`, `darwin-x64`, `darwin-arm64`. See [JDK Tooling](https://github.com/redhat-developer/vscode-java/#java-tooling-jdk) for details.
+  * Java JDK (or JRE) 21 or more recent is required **except** on the following platforms : `win32-x64`, `linux-x64`, `linux-arm64`, `darwin-x64`, `darwin-arm64`. See [JDK Tooling](https://github.com/redhat-developer/vscode-java/#java-tooling-jdk) for details.
 
 ## Supported VS Code settings
 

src/languageServer/requirements.ts

@@ -86,8 +86,8 @@ function checkJavaVersion(javaHome: string): Promise<number> {
     return new Promise((resolve, reject) => {
         cp.execFile(javaHome + '/bin/java', ['-version'], {}, (error, stdout, stderr) => {
             const javaVersion = parseMajorVersion(stderr);
-            if (javaVersion < 11) {
-                reject(openJDKDownload(`Java 11 or more recent is required to run 'Tools for MicroProfile'. Please download and install a recent JDK.`));
+            if (javaVersion < 21) {
+                reject(openJDKDownload(`Java 21 or more recent is required to run 'Tools for MicroProfile'. Please download and install a recent JDK.`));
             } else {
                 resolve(javaVersion);
             }