The specified directory is not a valid Payara installation

On Eclipse 4.34 and Eclipse Plugin 2.4.0, I receive the error “The specified directory is not a valid Payara installation” when I try to add a Payara server 5.2020.7 (see screenshot).

Is that combination not supported? Where could I find a spreadsheet outlining which eclipse plugin version is compatible with what eclipse, payara server, and JDK versions?

My Payara server installation is fine btw, it worked correctly before in Eclipse 2021-09 and eclipse plugin 1.4.

Many thanks!

I retried the same with Payara 6.2025.1 and I get the exact same problem.

Looking at the error log in Eclipse, I can see this message which may or may not be relevant:

No property tester contributes a property fish.payara.eclipse.tools.server.isWSLInstance to type class org.eclipse.ui.internal.views.log.LogEntry

I just downloaded the previous version from GitHub (2.3.0) and installed on Eclipse IDE manually. It works fine.

It seems there is either a bug in 2.4.0, or the plugin is not downloading properly from Eclipse Marketplace. I couldn’t try 2.4.0 with manual installation from GitHub as only the sources are tagged and fish.payara.eclipse.update-2.4.0.zip is missing at the time of writing this.