Make the Adoptopenjdk package type look at the Temurin repo first for latest assets (#522)

* Make the Adoptopenjdk package type look at the Temurin repo first for latest assets

* Address Copilot code review comments

- Use strict equality (===, !==) instead of loose equality (==, !=) for all comparisons
- Properly handle caught errors with instanceof type narrowing before accessing properties
- Only fall back to legacy AdoptOpenJDK for specific version-not-found errors
- Rethrow unexpected errors to avoid masking real issues (network failures, rate limits, etc.)
- Fix error message check to match actual error text ('No matching version found')
- Remove unnecessary undefined check since method return type is never undefined
- Add @internal JSDoc annotation to TemurinDistribution.findPackageForDownload()
- Update tests to properly mock Temurin lookup failures for fallback behavior testing
- Rebuild dist files

* Always fall back to legacy AdoptOpenJDK but log all Temurin failures

- Change error handling to gracefully fall back for all errors, not just version-not-found
- Log version-not-found errors as notices with migration guidance
- Log other Temurin failures as debug messages for troubleshooting
- Improves resilience: users always get a result even if Temurin API has issues
- Maintains visibility: failures are still logged for debugging

* Fixes from review

* Fixes from review

* Fixes from review

* Regenerate dist

dist/setup/index.js

@@ -77815,17 +77815,54 @@ const path_1 = __importDefault(__nccwpck_require__(71017));
 const semver_1 = __importDefault(__nccwpck_require__(11383));
 const base_installer_1 = __nccwpck_require__(59741);
 const util_1 = __nccwpck_require__(92629);
+const installer_1 = __nccwpck_require__(18579);
 var AdoptImplementation;
 (function (AdoptImplementation) {
     AdoptImplementation["Hotspot"] = "Hotspot";
     AdoptImplementation["OpenJ9"] = "OpenJ9";
 })(AdoptImplementation || (exports.AdoptImplementation = AdoptImplementation = {}));
 class AdoptDistribution extends base_installer_1.JavaBase {
-    constructor(installerOptions, jvmImpl) {
+    constructor(installerOptions, jvmImpl, temurinDistribution = null) {
         super(`Adopt-${jvmImpl}`, installerOptions);
         this.jvmImpl = jvmImpl;
+        if (temurinDistribution !== null &&
+            jvmImpl !== AdoptImplementation.Hotspot) {
+            throw new Error('Only Hotspot JVM is supported by Temurin.');
+        }
+        // Only use the temurin repo for Hotspot JVMs
+        this.temurinDistribution =
+            temurinDistribution !== null && temurinDistribution !== void 0 ? temurinDistribution : (jvmImpl === AdoptImplementation.Hotspot
+                ? new installer_1.TemurinDistribution(installerOptions, installer_1.TemurinImplementation.Hotspot)
+                : null);
     }
     findPackageForDownload(version) {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (this.jvmImpl === AdoptImplementation.Hotspot) {
+                core.notice("AdoptOpenJDK has moved to Eclipse Temurin https://github.com/actions/setup-java#supported-distributions please consider changing to the 'temurin' distribution type in your setup-java configuration.");
+            }
+            if (this.jvmImpl === AdoptImplementation.Hotspot &&
+                this.temurinDistribution !== null) {
+                try {
+                    return yield this.temurinDistribution.findPackageForDownload(version);
+                }
+                catch (error) {
+                    // Log the failure but always fall back to legacy AdoptOpenJDK for resilience
+                    const errorMessage = error instanceof Error ? error.message : String(error);
+                    if (error instanceof Error && error.name === 'VersionNotFoundError') {
+                        core.notice('The JVM you are looking for could not be found in the Temurin repository, this likely indicates ' +
+                            'that you are using an out of date version of Java, consider updating and moving to using the Temurin distribution type in setup-java.');
+                    }
+                    else {
+                        // Log other errors for debugging but gracefully fall back
+                        core.debug(`Temurin lookup failed: ${errorMessage}. Falling back to AdoptOpenJDK API.`);
+                    }
+                }
+            }
+            // failed to find a Temurin version, so fall back to AdoptOpenJDK
+            return this.findPackageForDownloadOldAdoptOpenJdk(version);
+        });
+    }
+    findPackageForDownloadOldAdoptOpenJdk(version) {
         return __awaiter(this, void 0, void 0, function* () {
             const availableVersionsRaw = yield this.getAvailableVersions();
             const availableVersionsWithBinaries = availableVersionsRaw
@@ -78223,7 +78260,9 @@ class JavaBase {
                 parts.push(`(showing first ${maxVersionsToShow} of ${availableVersions.length} versions, enable debug mode to see all)`);
             }
         }
-        return new Error(parts.join('\n'));
+        const error = new Error(parts.join('\n'));
+        error.name = 'VersionNotFoundError';
+        return error;
     }
     setJavaDefault(version, toolPath) {
         const majorVersion = version.split('.')[0];
@@ -80195,6 +80234,9 @@ class TemurinDistribution extends base_installer_1.JavaBase {
         super(`Temurin-${jvmImpl}`, installerOptions);
         this.jvmImpl = jvmImpl;
     }
+    /**
+     * @internal For cross-distribution reuse only. Not intended as a public API.
+     */
     findPackageForDownload(version) {
         return __awaiter(this, void 0, void 0, function* () {
             const availableVersionsRaw = yield this.getAvailableVersions();