Merge pull request #32 from apache/dependabot/maven/org.mockito-mockito-core-3.7.7

Bump mockito-core from 3.6.28 to 3.7.7
diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 02aa4a3..004a03f 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -35,7 +35,7 @@
         uses: actions/checkout@v2
 
       - name: Set up cache for ~./m2/repository
-        uses: actions/cache@v2.1.3
+        uses: actions/cache@v2.1.4
         with:
           path: ~/.m2/repository
           key: maven-${{ matrix.os }}-java${{ matrix.java }}-${{ hashFiles('**/pom.xml') }}
@@ -44,10 +44,11 @@
             maven-${{ matrix.os }}-
       - name: Install Toolchain JDK
         if: ${{ matrix.java == '8' }}
-        uses: battila7/jdk-via-jabba@v1
+        uses: AdoptOpenJDK/install-jdk@v1
         with:
-          jdk: adopt-openj9@1.11.0-7
-          javaHomeEnvironmentVariable: TOOLCHAIN_JDK
+          version: '11'
+          targets: 'TOOLCHAIN_JDK'
+          impl: 'openj9'
       - name: Set up Toolchain
         if: ${{ matrix.java == '8' }}
         shell: bash