ci: JDK 8, 11, 15

Author: sullis

.github/workflows/ci.yml

@@ -5,10 +5,10 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ '1.8.0', '11.0.x' ]
+        java: [ '8', '11', '15' ]
     steps:
     - uses: actions/checkout@v1
-    - name: Set up JDK
+    - name: Set up JDK ${{ matrix.java }}
       uses: actions/setup-java@v1
       with:
         java-version: ${{ matrix.java }}