Add JDK caching

Cache resolved JDK tool-cache entries by exact platform and release identity, with a default-on cache-jdk input and explicit opt-out.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

src/cleanup-java.ts

@@ -24,10 +24,11 @@ async function removePrivateKeyFromKeychain() {
  * Check given input and run a save process for the specified package manager
  * @returns Promise that will be resolved when the save process finishes
  */
-async function saveCache() {
+async function saveCaches() {
   const jobStatus = isJobStatusSuccess();
   const cache = core.getInput(constants.INPUT_CACHE);
-  if (!jobStatus || !cache) {
+  const cacheJdk = getBooleanInput(constants.INPUT_CACHE_JDK, true);
+  if (!jobStatus || (!cache && !cacheJdk)) {
     return;
   }
 
@@ -36,8 +37,16 @@ async function saveCache() {
     return;
   }
 
-  const {save} = await import('./cache.js');
-  await save(cache);
+  const saves: Promise<void>[] = [];
+  if (cache) {
+    const {save} = await import('./cache.js');
+    saves.push(save(cache));
+  }
+  if (cacheJdk) {
+    const {saveJdkCaches} = await import('./jdk-cache.js');
+    saves.push(saveJdkCaches());
+  }
+  await Promise.all(saves);
 }
 
 /**
@@ -59,7 +68,7 @@ async function ignoreError(promise: Promise<void>) {
 
 export async function run() {
   await removePrivateKeyFromKeychain();
-  await ignoreError(saveCache());
+  await ignoreError(saveCaches());
 }
 
 if (process.argv[1] === fileURLToPath(import.meta.url)) {