Github actions are the future because Azure pipelines were never stable.

[Refactor]

azure-pipelines.yml

-# Maven
-# Build your Java project and run tests with Apache Maven.
-# Add steps that analyze code, save build artifacts, deploy, and more:
-# https://docs.microsoft.com/azure/devops/pipelines/languages/java
-
-## https://docs.microsoft.com/en-us/azure/devops/pipelines/caching/?view=azure-devops#can-i-clear-a-cache
-variables:
-  MAVEN_CACHE_FOLDER: $(Pipeline.Workspace)/.m2/repository
-  MAVEN_OPTS: '-Dmaven.repo.local=$(MAVEN_CACHE_FOLDER)'
-
-
-jobs:
-
-- job: Linux
-  timeoutInMinutes: 0
-
-  pool:
-    vmImage: 'Ubuntu-16.04'
-
-  steps:
-  - task: Maven@3
-    inputs:
-      mavenPomFile: 'pom.xml'
-      mavenOptions: '-Xmx3072m -Dmaven.test.skip=true -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn'
-      options: '-fae -B'
-      javaHomeOption: 'JDKVersion'
-      jdkVersionOption: '1.11'
-      jdkArchitectureOption: 'x64'
-      publishJUnitResults: false
-      testResultsFiles: '**/surefire-reports/TEST-*.xml'
-      goals: 'verify'
-
-
-- job: Windows
-  timeoutInMinutes: 0
-
-  pool:
-    vmImage: 'windows-2019'
-
-  steps:
-  - task: Maven@3
-    inputs:
-      mavenPomFile: 'pom.xml'
-      mavenOptions: '-Xmx3072m -Dmaven.test.skip=true -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn'
-      options: '-fae -B'
-      javaHomeOption: 'JDKVersion'
-      jdkVersionOption: '1.11'
-      jdkArchitectureOption: 'x64'
-      publishJUnitResults: false
-      testResultsFiles: '**/surefire-reports/TEST-*.xml'
-      goals: 'verify'
-
-
-- job: Mac
-  timeoutInMinutes: 0
-
-  pool:
-    vmImage: 'macOS-10.14'
-
-  steps:
-  - task: Maven@3
-    inputs:
-      mavenPomFile: 'pom.xml'
-      mavenOptions: '-Xmx3072m -Dtest.skip=true -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn'
-      options: '-fae -B'
-      javaHomeOption: 'JDKVersion'
-      jdkVersionOption: '1.11'
-      jdkArchitectureOption: 'x64'
-      publishJUnitResults: false
-      testResultsFiles: '**/surefire-reports/TEST-*.xml'
-      goals: 'verify'