Update build.yml

.github/workflows/build.yml

@@ -7,7 +7,7 @@ jobs:
     strategy:
       matrix:
         java: ["1.8", "11"]
-        os: ["ubuntu-18.04"]
+        os: ["ubuntu-latest"]
     runs-on: "${{ matrix.os }}"
     steps:
     - name: "Checkout Repository"
@@ -17,23 +17,23 @@ jobs:
       with:
           java-version: "${{ matrix.java }}"
     - name: "Cache Gradle"
-      uses: "actions/cache@v2.1.3"
+      uses: "actions/cache@v2.1.4"
       with:
         path: |
           "~/.gradle/caches"
           "~/.gradle/wrapper"
-        key: "${{ runner.os }}-${{ matrix.java }}-gradle-${{ hashFiles('**/*.gradle*') }}"
+        key: "${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}"
         restore-keys: |
-          "${{ runner.os }}-${{ matrix.java }}-gradle-"
+          "${{ runner.os }}-gradle-"
     - name: "Cache Local Maven Repository"
-      uses: "actions/cache@v2.1.3"
+      uses: "actions/cache@v2.1.4"
       with:
         path: "~/.m2/repository"
         key: "${{ runner.os }}-${{ matrix.java }}-maven-${{ hashFiles('**/pom.xml') }}"
         restore-keys: |
           "${{ runner.os }}-${{ matrix.java }}-maven-"
     - name: "Cache BuildTools Decompiled Code"
-      uses: "actions/cache@v2.1.3"
+      uses: "actions/cache@v2.1.4"
       with:
         path: "$GITHUB_WORKSPACE/work"
         key: "${{ runner.os }}-buildtools"
@@ -47,4 +47,11 @@ jobs:
       run: "java -jar BuildTools.jar --rev 1.16.5"
     - name: "Clean Build"
       run: "./gradlew clean build -x test sourcesJar javadocJar"
+    - name: Cleanup Gradle Cache
+      # Remove some files from the Gradle cache, so they aren't cached by GitHub Actions.
+      # Restoring these files from a GitHub Actions cache might cause problems for future builds.
+      run: |
+        rm -f ~/.gradle/caches/modules-2/modules-2.lock
+        rm -f ~/.gradle/caches/modules-2/gc.properties
+