1. gradle/actions/setup-gradle@v4 — caches Gradle deps, build cache, and wrapper (replaces cache: 'gradle' on setup-java)

2. actions/cache@v4 for AVD — caches ~/.android/avd/* between runs so the ATD system image isn't re-downloaded

  First run populates caches. Subsequent runs skip the ~800MB system image download and AVD creation.

Author: Denis-Averin

.github/workflows/ci.yml

@@ -49,7 +49,9 @@ jobs:
         with:
           distribution: "temurin"
           java-version: 17
-          cache: "gradle"
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
 
       - name: Build Java library JAR
         run: mvn package -Dmaven.test.skip=true
@@ -63,6 +65,14 @@ jobs:
           sudo udevadm control --reload-rules
           sudo udevadm trigger --name-match=kvm
 
+      - name: Cache AVD
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.android/avd/*
+            ~/.android/adb*
+          key: avd-pixel2-api30-atd
+
       - name: Run Android Tests
         working-directory: android-test
         run: >