Backport #1151: Fix missing wrapper cache distributions

Skip optional Maven and Gradle wrapper cache saves when their distribution paths do not exist, while allowing the main dependency cache to save. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: c0b19ff2-ef52-4ac1-a832-0f8f72c43219
brunoborges · Jul 29, 2026 · Jul 28, 2026 · Jul 29, 2026 · Jul 28, 2026 · 998b716efa3e5114dbeb928c90d49bdc9aaa4134
commit 998b716efa3e5114dbeb928c90d49bdc9aaa4134
@@ -377,13 +377,20 @@ describe('dependency cache', () => {
       ReturnType<typeof cache.saveCache>,
       Parameters<typeof cache.saveCache>
     >;
+    let spyGlobCreate: jest.SpyInstance<
+      ReturnType<typeof glob.create>,
+      Parameters<typeof glob.create>
+    >;
 
     beforeEach(() => {
       spyCacheSave = jest
         .spyOn(cache, 'saveCache')
         .mockImplementation((paths: string[], key: string) =>
           Promise.resolve(0)
         );
+      spyGlobCreate = jest
+        .spyOn(glob, 'create')
+        .mockResolvedValue(createGlobber(['wrapper-path']));
       spyWarning.mockImplementation(() => null);
     });
 
@@ -469,17 +476,24 @@ describe('dependency cache', () => {
       });
       it('does not fail the post step when the wrapper distribution path is missing', async () => {
         createFile(join(workspace, 'pom.xml'));
+        createDirectory(join(workspace, '.mvn'));
+        createDirectory(join(workspace, '.mvn', 'wrapper'));
+        createFile(
+          join(workspace, '.mvn', 'wrapper', 'maven-wrapper.properties')
+        );
         createStateForWrapperRestore('maven-wrapper', false);
-        spyCacheSave.mockImplementation((paths: string[], key: string) => {
-          if (paths.includes(join(os.homedir(), '.m2', 'wrapper', 'dists'))) {
-            return Promise.reject(
-              new cache.ValidationError('Path Validation Error')
-            );
-          }
-          return Promise.resolve(0);
-        });
+        spyGlobCreate.mockResolvedValue(createGlobber([]));
 
-        await expect(save('maven')).resolves.not.toThrow();
+        await expect(save('maven')).resolves.toBeUndefined();
+        expect(spyCacheSave).not.toHaveBeenCalledWith(
+          [join(os.homedir(), '.m2', 'wrapper', 'dists')],
+          expect.any(String)
+        );
+        expect(spyCacheSave).toHaveBeenCalledWith(
+          [join(os.homedir(), '.m2', 'repository')],
+          'setup-java-cache-primary-key'
+        );
+        expect(spyWarning).not.toHaveBeenCalled();
       });
     });
     describe('for gradle', () => {
@@ -553,6 +567,23 @@ describe('dependency cache', () => {
           expect.any(String)
         );
       });
+      it('does not fail the post step when the wrapper distribution path is missing', async () => {
+        createFile(join(workspace, 'build.gradle'));
+        createFile(join(workspace, 'gradle-wrapper.properties'));
+        createStateForWrapperRestore('gradle-wrapper', false);
+        spyGlobCreate.mockResolvedValue(createGlobber([]));
+
+        await expect(save('gradle')).resolves.toBeUndefined();
+        expect(spyCacheSave).not.toHaveBeenCalledWith(
+          [join(os.homedir(), '.gradle', 'wrapper')],
+          expect.any(String)
+        );
+        expect(spyCacheSave).toHaveBeenCalledWith(
+          [join(os.homedir(), '.gradle', 'caches')],
+          'setup-java-cache-primary-key'
+        );
+        expect(spyWarning).not.toHaveBeenCalled();
+      });
     });
     describe('for sbt', () => {
       it('uploads cache even if no build.sbt found', async () => {
@@ -663,6 +694,20 @@ function createDirectory(path: string) {
   fs.mkdirSync(path);
 }
 
+function createGlobber(
+  paths: string[]
+): Awaited<ReturnType<typeof glob.create>> {
+  return {
+    getSearchPaths: () => [],
+    glob: () => Promise.resolve(paths),
+    globGenerator: async function* () {
+      for (const path of paths) {
+        yield path;
+      }
+    }
+  };
+}
+
 function projectRoot(workspace: string): string {
   if (os.platform() === 'darwin') {
     return `/private${workspace}`;

@@ -52207,6 +52207,14 @@ function saveAdditionalCache(packageManager, additionalCache) {
             core.info(`Cache hit occurred on the ${additionalCache.name} primary key ${primaryKey}, not saving cache.`);
             return;
         }
+        const globber = yield glob.create(additionalCache.path.join('\n'), {
+            implicitDescendants: false
+        });
+        const cachePaths = yield globber.glob();
+        if (cachePaths.length === 0) {
+            core.debug(`${additionalCache.name} cache paths do not exist, not saving cache.`);
+            return;
+        }
         try {
             const cacheId = yield cache.saveCache(additionalCache.path, primaryKey);
             if (cacheId === -1) {

@@ -78072,6 +78072,14 @@ function saveAdditionalCache(packageManager, additionalCache) {
             core.info(`Cache hit occurred on the ${additionalCache.name} primary key ${primaryKey}, not saving cache.`);
             return;
         }
+        const globber = yield glob.create(additionalCache.path.join('\n'), {
+            implicitDescendants: false
+        });
+        const cachePaths = yield globber.glob();
+        if (cachePaths.length === 0) {
+            core.debug(`${additionalCache.name} cache paths do not exist, not saving cache.`);
+            return;
+        }
         try {
             const cacheId = yield cache.saveCache(additionalCache.path, primaryKey);
             if (cacheId === -1) {

@@ -319,6 +319,18 @@ async function saveAdditionalCache(
     );
     return;
   }
+
+  const globber = await glob.create(additionalCache.path.join('\n'), {
+    implicitDescendants: false
+  });
+  const cachePaths = await globber.glob();
+  if (cachePaths.length === 0) {
+    core.debug(
+      `${additionalCache.name} cache paths do not exist, not saving cache.`
+    );
+    return;
+  }
+
   try {
     const cacheId = await cache.saveCache(additionalCache.path, primaryKey);
     if (cacheId === -1) {