Support newer java versions

.github/workflows/.toolchains.xml

@@ -1,20 +1,50 @@
 <?xml version="1.0" encoding="UTF8"?>
 <toolchains>
+    <toolchain>
+        <type>jdk</type>
+        <provides>
+            <version>1.8</version>
+            <vendor>openjdk</vendor>
+        </provides>
+        <configuration>
+            <jdkHome>${env.JAVA8_HOME}</jdkHome>
+        </configuration>
+    </toolchain>
     <toolchain>
         <type>jdk</type>
         <provides>
             <version>8</version>
-            <vendor>adoptopenjdk</vendor>
+            <vendor>openjdk</vendor>
+        </provides>
+        <configuration>
+            <jdkHome>${env.JAVA8_HOME}</jdkHome>
+        </configuration>
+    </toolchain>
+    <toolchain>
+        <type>jdk</type>
+        <provides>
+            <version>9</version>
+            <vendor>openjdk</vendor>
+        </provides>
+        <configuration>
+            <jdkHome>${env.JAVA9_HOME}</jdkHome>
+        </configuration>
+    </toolchain>
+    <toolchain>
+        <type>jdk</type>
+        <provides>
+            <version>10</version>
+            <vendor>openjdk</vendor>
         </provides>
         <configuration>
-            <jdkHome>${JAVA_HOME}</jdkHome>
+            <jdkHome>${env.JAVA10_HOME}</jdkHome>
         </configuration>
     </toolchain>
     <toolchain>
         <type>jdk</type>
         <provides>
             <version>11</version>
-            <vendor>adoptopenjdk</vendor>
+            <vendor>openjdk</vendor>
         </provides>
         <configuration>
             <jdkHome>${env.JAVA11_HOME}</jdkHome>
@@ -23,21 +53,21 @@
     <toolchain>
         <type>jdk</type>
         <provides>
-            <version>15</version>
-            <vendor>adoptopenjdk</vendor>
+            <version>12</version>
+            <vendor>openjdk</vendor>
         </provides>
         <configuration>
-            <jdkHome>${env.JAVA15_HOME}</jdkHome>
+            <jdkHome>${env.JAVA12_HOME}</jdkHome>
         </configuration>
     </toolchain>
     <toolchain>
         <type>jdk</type>
         <provides>
-            <version>16</version>
-            <vendor>adoptopenjdk</vendor>
+            <version>13</version>
+            <vendor>openjdk</vendor>
         </provides>
         <configuration>
-            <jdkHome>${env.JAVA16_HOME}</jdkHome>
+            <jdkHome>${env.JAVA13_HOME}</jdkHome>
         </configuration>
     </toolchain>
 </toolchains>

.github/workflows/maven.yml

@@ -1,54 +1,123 @@
 name: Java Test Coverage with Maven, Coveralls
 
 on:
-    pull_request:
-    push:
-        branches: [ master ]
-    workflow_dispatch:
+  pull_request:
+  push:
+    branches: [ master ]
+  workflow_dispatch:
 
 env:
-    MAVEN_OPTS: -Xmx4g -Xms1g
-    repo_token: ${{secrets.coveralls_token}}
+  MAVEN_OPTS: -Xmx4g -Xms1g
+  repo_token: ${{secrets.coveralls_token}}
+  RUNNER_TEMP: /tmp
 
 jobs:
-    build:
-        name: Build, Test, Coverage
-        runs-on: ubuntu-latest
-
-        steps:
-        - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
-          uses: actions/checkout@v2
-          with:
-              persist-credentials: false
-
-        - name: Cache local Maven repository
-          uses: actions/cache@v2
-          with:
-              path: ~/.m2/repository
-              key: build-${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-              restore-keys: build-${{ runner.os }}-maven-
-
-        - name: Install JDK
-          uses: AdoptOpenJDK/install-jdk@v1
-          with:
-              version: '8'
-              architecture: x64
-              impl: hotspot
-              targets: 'JDK_8;JAVA_HOME'
-
-        - name: Install Dependencies
-          run: >
-              mvn clean install -B -V -q
-              -DskipTests=true
-              -Dmaven.javadoc.skip=true
-              -Dgpg.skip=true
-              --toolchains .github/workflows/.toolchains.xml
-
-        - name: Test & Report
-          if: ${{ success() }}
-          run: >
-              mvn verify coveralls:report -B -V -q
-              -Dcoveralls-repo-token=${repo_token}
-              -Dmaven.javadoc.skip=true
-              -Dgpg.skip=true
-              --toolchains .github/workflows/.toolchains.xml
+  build:
+    name: Build, Test, Coverage
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        jdk: [8,9,10,11,12,13]
+
+    # All JDKs are installed per build machine which is inefficient
+
+    env:
+      JDK_VERSION: ${{ matrix.jdk }}
+
+    steps:
+      - name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+
+      - name: Cache local Maven repository
+        uses: actions/cache@v2
+        with:
+          path: ~/.m2/repository
+          key: build-${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: build-${{ runner.os }}-maven-
+
+      - name: Install JDK 8
+        uses: AdoptOpenJDK/install-jdk@v1
+        with:
+          version: '8'
+          architecture: x64
+          impl: hotspot
+          targets: 'JAVA8_HOME'
+
+      - name: Install JDK 9
+        uses: AdoptOpenJDK/install-jdk@v1
+        with:
+          version: '9'
+          architecture: x64
+          impl: hotspot
+          targets: 'JAVA9_HOME'
+
+      - name: Install JDK 10
+        uses: AdoptOpenJDK/install-jdk@v1
+        with:
+          version: '10'
+          architecture: x64
+          impl: hotspot
+          targets: 'JAVA10_HOME'
+
+      - name: Install JDK 11
+        uses: AdoptOpenJDK/install-jdk@v1
+        with:
+          version: '11'
+          architecture: x64
+          impl: hotspot
+          targets: 'JAVA11_HOME'
+
+      - name: Install JDK 12
+        uses: AdoptOpenJDK/install-jdk@v1
+        with:
+          version: '12'
+          architecture: x64
+          impl: hotspot
+          targets: 'JAVA12_HOME'
+
+      - name: Install JDK 13
+        uses: AdoptOpenJDK/install-jdk@v1
+        with:
+          version: '13'
+          architecture: x64
+          impl: hotspot
+          targets: 'JAVA13_HOME'
+
+      - name: Install Matrix JDK
+        uses: AdoptOpenJDK/install-jdk@v1
+        with:
+          version: ${{ matrix.jdk }}
+          architecture: x64
+          impl: hotspot
+          targets: 'JAVA_HOME'
+
+      - name: Echo Java Version
+        run: >
+          java -version
+
+      - name: Install Dependencies
+        run: >
+          mvn clean install
+          -DskipTests=true
+          -Dmaven.javadoc.skip=true
+          -Dgpg.skip=true
+          --toolchains .github/workflows/.toolchains.xml
+
+      - name: Package
+        run: >
+          mvn package
+          -Dmaven.javadoc.skip=true
+          -Dgpg.skip=true
+          --toolchains .github/workflows/.toolchains.xml
+
+      - name: Test & Report
+        if: ${{ matrix.jdk == 8 && success() }}
+        run: >
+          mvn verify coveralls:report -B -V
+          -Dcoveralls-repo-token=${repo_token}
+          -Dmaven.javadoc.skip=true
+          -Dgpg.skip=true
+          --toolchains .github/workflows/.toolchains.xml

.lgtm.yml

@@ -0,0 +1,60 @@
+##########################################################################################
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+##########################################################################################
+
+#########################################################################################
+# Use the extraction block to define changes to the default code extraction process     #
+# for one or more languages. The settings for each language are defined in a child      #
+# block, with one or more steps.                                                        #
+#########################################################################################
+
+extraction:
+
+  # Define settings for Java analysis
+  ####################################
+  java:
+    # The `index` step extracts information from the files in the codebase.
+    index:
+      # Specify the Java version required to build the project.
+      java_version: 8
+      # Specify Maven settings.
+      maven:
+        # Specify the path of a Maven toolchains file.
+        # Default: Maven uses a toolchains file in the default location, if it exists.
+        toolchains_file: .github/workflows/.toolchains.xml
+
+  # Define settings for JavaScript analysis
+  ##########################################
+  javascript:
+
+    # The `index` step extracts information from the files in the codebase.
+    index:
+      # Specify a list of files and folders to exclude from extraction.
+      exclude:
+        - **/*/site
+      # Specify a list of glob patterns to include/exclude files from extraction; this
+      # is applied on top of the include/exclude paths from above; patterns are
+      # processed in the same way as for path classifiers above.
+      # Default: include all files with known extensions (such as .js, .ts and .html),
+      # but exclude files ending in `-min.js` or `.min.js` and folders named `node_modules`
+      # or `bower_components`
+      filters:
+        # exclude any *.js files anywhere.
+        - exclude: "**/*.js"
+        # exclude any *.html files anywhere.
+        - exclude: "**/*.html"