name: Java CI

on:
  push:
    branches:
      - master

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1

    - name: Set up JDK 11
      uses: actions/setup-java@v1
      with:
        java-version: 11

    - name: Build with Maven
      run: mvn package --file pom.xml -Pjs-test

name: Java CI

on:
  push:
    branches:
      - master

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v1

    - name: Get OpenJDK 11
      run: wget https://github.com/AdoptOpenJDK/openjdk11-binaries/releases/download/jdk-11.0.6%2B10/OpenJDK11U-jre_x64_linux_hotspot_11.0.6_10.tar.gz

    - name: Set up JDK 11
      uses: actions/setup-java@v1
      with:
        java-version: 11
        jdkFile: ./OpenJDK11U-jre_x64_linux_hotspot_11.0.6_10.tar.gz

    - name: Build with Maven
      run: mvn package --file pom.xml -Pjs-test

Use AdoptOpenJDK 11.0.6 at Github Actions
Use AdoptOpenJDK 11.0.6 at Github Actions

This is an attempt to solve this issue:

[INFO] Running org.apache.wicket.cdi.ConversationPropagatorTest
[ERROR] Tests run: 8, Failures: 0, Errors: 8, Skipped: 0, Time elapsed: 1 s <<< FAILURE! - in org.apache.wicket.cdi.ConversationPropagatorTest
[ERROR] testPropagationAllBookmarkable  Time elapsed: 0.013 s  <<< ERROR!
java.io.IOException: cannot connect to jrt:/org.openjsse

[ERROR] testPropagationNonBookmarkable  Time elapsed: 0 s  <<< ERROR!
java.io.IOException: cannot connect to jrt:/org.openjsse

[ERROR] testPropagationAllHybridRefresh  Time elapsed: 0 s  <<< ERROR!
java.io.IOException: cannot connect to jrt:/org.openjsse

which seems to have started with
https://github.com/apache/wicket/runs/380911847?check_suite_focus=true
https://github.com/apache/wicket/commit/65e2266d8b205d3768986c3e6ad548cfb3759d35
