The easiest way to manage your local JDK is to use sdkman. Install it by following instructions at: https://sdkman.io/install.
sdk list java | grep zulu
Azul Zulu | | 15.0.2 | zulu | | 15.0.2-zulu
| | 15.0.2.fx | zulu | | 15.0.2.fx-zulu
| | 15.0.1 | zulu | | 15.0.1-zulu
| | 15.0.1.fx | zulu | | 15.0.1.fx-zulu
| | 14.0.2.fx | zulu | | 14.0.2.fx-zulu
| | 13.0.5.fx | zulu | | 13.0.5.fx-zulu
| >>> | 11.0.10 | zulu | installed | 11.0.10-zulu
| | 11.0.10.fx | zulu | | 11.0.10.fx-zulu
| | 11.0.9 | zulu | | 11.0.9-zulu
| | 11.0.9.fx | zulu | | 11.0.9.fx-zulu
| | 8.0.282 | zulu | installed | 8.0.282-zulu
| | 8.0.282.fx | zulu | | 8.0.282.fx-zulu
| | 8.0.275.fx | zulu | | 8.0.275.fx-zulu
| | 7.0.282 | zulu | | 7.0.282-zulu
Install the java version you want. The fx signifies that java FX is included.
sdk install java 8.0.282.fx-zulu
Downloading: java 8.0.282-zulu In progress... ######################################################################### 100.0%######################################################################### 100.0% Repackaging Java 8.0.282-zulu... Done repackaging... Installing: java 8.0.282-zulu Done installing! Do you want java 8.0.282-zulu to be set as default? (Y/n): n
The tool sdkman stores everything in directory: ~/.sdkman/; e.g.., all JDKs are in: ~/.sdkman/candidates/java/.