fix(ci): add J16 and allow failures

.github/workflows/ci-build.yml

@@ -10,7 +10,7 @@ jobs:
         jdk: ['8', '11']
         include:
           - os: ubuntu-latest
-            jdk: '15'        
+            jdk: '16'   
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
@@ -26,5 +26,10 @@ jobs:
           restore-keys: ${{ runner.os }}-m2
 # NOTE(AR) The `-T 2C` enables multi-threaded builds below, faster, but may need to be disabled when diagnosing problems 
 # NOTE(DP): Reuse of build artefacts across workflows to (hopefully) limit network traffic
+      - name: Maven Build allow fail
+        if: ${{ matrix.jdk == '16' }}
+        run: mvn -V -B -q -T 2C -DskipTests=true "-Dmaven.javadoc.skip=true" install
+        continue-on-error: true
       - name: Maven Build
+        if: ${{ matrix.jdk != '16' }} 
         run: mvn -V -B -q -T 2C -DskipTests=true "-Dmaven.javadoc.skip=true" install

.github/workflows/ci-docs.yml

@@ -2,21 +2,30 @@ name: Javadoc
 on: [push, pull_request]
 jobs:
   test:
-    name: Generate Javadocs
+    name: ${{ matrix.jdk }} Javadocs 
+    strategy:
+      matrix: 
+        jdk: ['8','11', '16']
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
         with:
             fetch-depth: 0
-      - name: Set up JDK 8
+      - name: Set up JDK 
         uses: actions/setup-java@v1
         with:
-          java-version: '8'
+          java-version: ${{ matrix.jdk }}
       - name: Cache Maven packages
         uses: actions/cache@v2
         with:
           path: ~/.m2
           key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
           restore-keys: ${{ runner.os }}-m2
       - name: Maven Javadoc
-        run: mvn -V -B -q -T 2C javadoc:javadoc    
+        if: ${{ matrix.jdk == '8' }} 
+        run: mvn -V -B -q -T 2C javadoc:javadoc
+      - name: Maven Javadoc allow fail
+        if: ${{ matrix.jdk != '8' }} 
+        run: mvn -V -B -q -T 2C javadoc:javadoc
+        continue-on-error: true  
+

.github/workflows/ci-test.yml

@@ -10,7 +10,7 @@ jobs:
         jdk: ['8', '11']
         include:
           - os: ubuntu-latest
-            jdk: '15'        
+            jdk: '16'      
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v2
@@ -24,8 +24,13 @@ jobs:
           path: ~/.m2
           key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
           restore-keys: ${{ runner.os }}-m2
-      - name: Maven Test
+      - name: Maven Test allow fail
+        if: ${{ matrix.jdk == '16' }} 
         run: mvn -V -B clean verify
+        continue-on-error: true
+      - name: Maven Test 
+        if: ${{ matrix.jdk != '16' }} 
+        run: mvn -V -B clean verify    
       - name: Maven Code Coverage
         if: ${{ github.ref == 'refs/heads/develop' && matrix.jdk == '8' && matrix.os == 'ubuntu-latest' }}
         env: