Merge pull request #220 from rage/prep

Fix prepare-submission

Author: Heliozoa

.github/workflows/test.yml

@@ -69,7 +69,7 @@ jobs:
         uses: actions/setup-java@v4
         with:
           distribution: "temurin"
-          java-version: "17"
+          java-version: "11"
           architecture: ${{ matrix.java-arch }}
 
       - name: Install Node

CONTRIBUTING.md

@@ -18,7 +18,7 @@ Install [Node.js and npm](https://docs.npmjs.com/downloading-and-installing-node
 
 Install [Python 3](https://www.python.org/downloads/). You may wish to use [pyenv](https://github.com/pyenv/pyenv/) to manage different Python versions conveniently.
 
-Install [OpenJDK 17](https://adoptium.net/temurin/releases/?arch=any&os=any&version=17) (other versions may work as well) and [ant](https://ant.apache.org/).
+Install [OpenJDK 11](https://adoptium.net/temurin/releases/?arch=any&os=any&version=11) (other versions may work as well) and [ant](https://ant.apache.org/).
 
 Install [.NET 8](https://dotnet.microsoft.com/download).