test: update maven cache error test name for extensions.xml

Closes #990

Maven build extensions declared in `.mvn/extensions.xml` can introduce
additional plugin dependencies (e.g. lifecycle participants, custom
packaging types). Including this file in the cache key hash ensures that
changes to extensions — which affect what plugin JARs Maven downloads —
properly invalidate the cache, preventing stale caches from missing
newly-required plugin dependencies.

Changes:
- src/cache.ts: add `**/.mvn/extensions.xml` to Maven pattern array
- __tests__/cache.test.ts: update pattern expectations; add new test
- README.md: document the new file in the Maven cache key hash list

.github/workflows/e2e-cache-dependency-path.yml

@@ -24,7 +24,7 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Run setup-java with the cache for gradle
         uses: ./
         id: setup-java
@@ -51,7 +51,7 @@ jobs:
     needs: gradle1-save
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Run setup-java with the cache for gradle
         uses: ./
         id: setup-java
@@ -76,7 +76,7 @@ jobs:
     needs: gradle1-save
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Run setup-java with the cache for gradle
         uses: ./
         id: setup-java

.github/workflows/e2e-cache.yml

@@ -24,7 +24,7 @@ jobs:
         os: [macos-15-intel, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Run setup-java with the cache for gradle
         uses: ./
         id: setup-java
@@ -50,7 +50,7 @@ jobs:
     needs: gradle-save
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Run setup-java with the cache for gradle
         uses: ./
         id: setup-java
@@ -73,7 +73,7 @@ jobs:
         os: [macos-15-intel, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Run setup-java with the cache for maven
         uses: ./
         id: setup-java
@@ -97,7 +97,7 @@ jobs:
     needs: maven-save
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Run setup-java with the cache for maven
         uses: ./
         id: setup-java
@@ -124,7 +124,7 @@ jobs:
         os: [macos-15-intel, windows-latest, ubuntu-22.04]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Run setup-java with the cache for sbt
         uses: ./
         id: setup-java
@@ -174,7 +174,7 @@ jobs:
     needs: sbt-save
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Run setup-java with the cache for sbt
         uses: ./
         id: setup-java

.github/workflows/e2e-local-file.yml

@@ -21,7 +21,7 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Download Adopt OpenJDK file
         run: |
           if ($IsLinux) {
@@ -58,7 +58,7 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Download Zulu OpenJDK file
         run: |
           if ($IsLinux) {
@@ -95,7 +95,7 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Download Eclipse Temurin file
         run: |
           if ($IsLinux) {

.github/workflows/e2e-publishing.yml

@@ -25,7 +25,7 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -60,7 +60,7 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Create fake settings.xml
         run: |
           $xmlDirectory = Join-Path $HOME ".m2"
@@ -96,7 +96,7 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Create fake settings.xml
         run: |
           $xmlDirectory = Join-Path $HOME ".m2"
@@ -133,7 +133,7 @@ jobs:
         os: [macos-latest, windows-latest, ubuntu-latest]
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java

.github/workflows/e2e-versions.yml

@@ -73,7 +73,7 @@ jobs:
             version: '24-ea'
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -99,7 +99,7 @@ jobs:
         version: ['21', '17']
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Install bash
         run: apk add --no-cache bash
       - name: setup-java
@@ -149,7 +149,7 @@ jobs:
             version: '17.0.7'
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -184,7 +184,7 @@ jobs:
             os: macos-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -220,7 +220,7 @@ jobs:
             os: macos-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -259,7 +259,7 @@ jobs:
         version: ['17-ea', '15.0.0-ea.14']
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -281,7 +281,7 @@ jobs:
         version: ['17-ea']
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -303,7 +303,7 @@ jobs:
         version: ['17-ea', '21-ea']
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -390,7 +390,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -418,7 +418,7 @@ jobs:
         version: ['11']
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: setup-java
         uses: ./
         id: setup-java
@@ -441,7 +441,7 @@ jobs:
         java-version-file: ['.java-version', '.tool-versions']
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Create .java-version file
         shell: bash
         run: echo "17" > .java-version
@@ -470,7 +470,7 @@ jobs:
         java-version-file: ['.java-version', '.tool-versions']
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Create .java-version file
         shell: bash
         run: echo "11" > .java-version
@@ -498,7 +498,7 @@ jobs:
         java-version-file: ['.java-version', '.tool-versions']
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Create .java-version file
         shell: bash
         run: echo "17.0.10" > .java-version
@@ -526,7 +526,7 @@ jobs:
         java-version-file: ['.java-version', '.tool-versions', '.sdkmanrc']
     steps:
       - name: Checkout
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Create .java-version file
         shell: bash
         run: echo "openjdk64-17.0.10" > .java-version

.github/workflows/publish-immutable-actions.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checking out
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
       - name: Publish
         id: publish
         uses: actions/publish-immutable-action@v0.0.4

README.md

@@ -128,7 +128,7 @@ Currently, the following distributions are supported:
 The action has a built-in functionality for caching and restoring dependencies. It uses [toolkit/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under hood for caching dependencies but requires less configuration settings. Supported package managers are gradle, maven and sbt. The format of the used cache key is `setup-java-${{ platform }}-${{ packageManager }}-${{ fileHash }}`, where the hash is based on the following files:
 
 - gradle: `**/*.gradle*`, `**/gradle-wrapper.properties`, `buildSrc/**/Versions.kt`, `buildSrc/**/Dependencies.kt`, `gradle/*.versions.toml`, and `**/versions.properties`
-- maven: `**/pom.xml` and `**/.mvn/wrapper/maven-wrapper.properties`
+- maven: `**/pom.xml`, `**/.mvn/wrapper/maven-wrapper.properties`, and `**/.mvn/extensions.xml`
 - sbt: all sbt build definition files `**/*.sbt`, `**/project/build.properties`, `**/project/**.scala`, `**/project/**.sbt`
 
 When the option `cache-dependency-path` is specified, the hash is based on the matching file. This option supports wildcards and a list of file names, and is especially useful for monorepos.

__tests__/cache.test.ts

@@ -96,11 +96,11 @@ describe('dependency cache', () => {
     });
 
     describe('for maven', () => {
-      it('throws error if no pom.xml or maven-wrapper.properties found', async () => {
+      it('throws error if no pom.xml, maven-wrapper.properties, or extensions.xml found', async () => {
         await expect(restore('maven', '')).rejects.toThrow(
           `No file in ${projectRoot(
             workspace
-          )} matched to [**/pom.xml,**/.mvn/wrapper/maven-wrapper.properties], make sure you have checked out the target repository`
+          )} matched to [**/pom.xml,**/.mvn/wrapper/maven-wrapper.properties,**/.mvn/extensions.xml], make sure you have checked out the target repository`
         );
       });
       it('downloads cache based on pom.xml', async () => {
@@ -115,7 +115,7 @@ describe('dependency cache', () => {
           expect.any(String)
         );
         expect(spyGlobHashFiles).toHaveBeenCalledWith(
-          '**/pom.xml\n**/.mvn/wrapper/maven-wrapper.properties'
+          '**/pom.xml\n**/.mvn/wrapper/maven-wrapper.properties\n**/.mvn/extensions.xml'
         );
         expect(spyWarning).not.toHaveBeenCalled();
         expect(spyInfo).toHaveBeenCalledWith('maven cache is not found');
@@ -136,7 +136,25 @@ describe('dependency cache', () => {
           expect.any(String)
         );
         expect(spyGlobHashFiles).toHaveBeenCalledWith(
-          '**/pom.xml\n**/.mvn/wrapper/maven-wrapper.properties'
+          '**/pom.xml\n**/.mvn/wrapper/maven-wrapper.properties\n**/.mvn/extensions.xml'
+        );
+        expect(spyWarning).not.toHaveBeenCalled();
+        expect(spyInfo).toHaveBeenCalledWith('maven cache is not found');
+      });
+      it('downloads cache based on extensions.xml', async () => {
+        createDirectory(join(workspace, '.mvn'));
+        createFile(join(workspace, '.mvn', 'extensions.xml'));
+
+        await restore('maven', '');
+        expect(spyCacheRestore).toHaveBeenCalledWith(
+          [
+            join(os.homedir(), '.m2', 'repository'),
+            join(os.homedir(), '.m2', 'wrapper', 'dists')
+          ],
+          expect.any(String)
+        );
+        expect(spyGlobHashFiles).toHaveBeenCalledWith(
+          '**/pom.xml\n**/.mvn/wrapper/maven-wrapper.properties\n**/.mvn/extensions.xml'
         );
         expect(spyWarning).not.toHaveBeenCalled();
         expect(spyInfo).toHaveBeenCalledWith('maven cache is not found');

dist/cleanup/index.js

@@ -51973,7 +51973,11 @@ const supportedPackageManager = [
             (0, path_1.join)(os_1.default.homedir(), '.m2', 'wrapper', 'dists')
         ],
         // https://github.com/actions/cache/blob/0638051e9af2c23d10bb70fa9beffcad6cff9ce3/examples.md#java---maven
-        pattern: ['**/pom.xml', '**/.mvn/wrapper/maven-wrapper.properties']
+        pattern: [
+            '**/pom.xml',
+            '**/.mvn/wrapper/maven-wrapper.properties',
+            '**/.mvn/extensions.xml'
+        ]
     },
     {
         id: 'gradle',

dist/setup/index.js

@@ -77837,7 +77837,11 @@ const supportedPackageManager = [
             (0, path_1.join)(os_1.default.homedir(), '.m2', 'wrapper', 'dists')
         ],
         // https://github.com/actions/cache/blob/0638051e9af2c23d10bb70fa9beffcad6cff9ce3/examples.md#java---maven
-        pattern: ['**/pom.xml', '**/.mvn/wrapper/maven-wrapper.properties']
+        pattern: [
+            '**/pom.xml',
+            '**/.mvn/wrapper/maven-wrapper.properties',
+            '**/.mvn/extensions.xml'
+        ]
     },
     {
         id: 'gradle',

src/cache.ts

@@ -28,7 +28,11 @@ const supportedPackageManager: PackageManager[] = [
       join(os.homedir(), '.m2', 'wrapper', 'dists')
     ],
     // https://github.com/actions/cache/blob/0638051e9af2c23d10bb70fa9beffcad6cff9ce3/examples.md#java---maven
-    pattern: ['**/pom.xml', '**/.mvn/wrapper/maven-wrapper.properties']
+    pattern: [
+      '**/pom.xml',
+      '**/.mvn/wrapper/maven-wrapper.properties',
+      '**/.mvn/extensions.xml'
+    ]
   },
   {
     id: 'gradle',