chore: update java versions (#167)

Author: marianogoldman

.github/workflows/test.yml

@@ -1,35 +1,42 @@
 name: Test
 
 on:
-  push:
-    branches:
-      - "master"
-      - "develop"
-  pull_request:
-    types: [ready_for_review, synchronize, opened]
+    push:
+        branches:
+            - "master"
+            - "develop"
+    pull_request:
+        types: [ ready_for_review, synchronize, opened ]
 
 jobs:
     unit:
         runs-on: ubuntu-latest
         strategy:
             matrix:
                 # test against latest update of each major Java version, as well as specific updates of LTS versions:
-                java: [ 8, 9, 10, 11, 12, 13 ]
+                java: [ 8, 11, 15, 16 ]
 
         steps:
-            - uses: actions/checkout@v2
+            -   name: Checkout code
+                uses: actions/checkout@v2
+                with:
+                    ref: ${{ github.head_ref }}
 
-            - name: Use Java Version ${{ matrix.java }}
-              uses: actions/setup-java@v2
-              with:
-                  java-version: ${{ matrix.java }}
-                  distribution: 'adopt'
+            -   name: Merge Conflict finder
+                uses: olivernybroe/action-conflict-finder@v1.1
 
-            - name: Install
-              run: gradle dependencies
+            -   name: Use Java Version ${{ matrix.java }}
+                uses: actions/setup-java@v2
+                with:
+                    distribution: 'adopt'
+                    java-version: ${{ matrix.java }}
+                    cache: 'gradle'
 
-            - name: Test
-              run: gradle test && gradle jacocoTestReport
+            -   name: Install
+                run: gradle dependencies
 
-            - name: Codecov
-              run: bash <(curl -s https://codecov.io/bash) -t ${{ secrets.CODECOV_TOKEN }}
+            -   name: Test
+                run: gradle test && gradle jacocoTestReport
+
+            -   name: Codecov
+                run: bash <(curl -s https://codecov.io/bash) -t ${{ secrets.CODECOV_TOKEN }}