1) install OpenJDK windows version
e.g. zulu versions
https://www.azul.com/downloads/?version=java-11-lts&os=windows&architecture=x86-64-bit&package=jdk-fx#zulu
- download .msi file, click and install (set PATH)
2) check intallation using Windows Powershell
java -version
javac -version
3) use Windows binaries in WSL
- set JAVA_HOME in .bashrc by adding a line of
export JAVA_HOME=/mnt/d/xxx/Zulu/zulu-11/bin/javafx/
- re-boot WSL, check by
java.exe -version
javac.exe -version