I am very new to Java and Fiji, so I am not sure if this is the right place to report this bug.

Jython auto-completions fail to load on a fresh Fiji installation with warining: WARNING did not load JythonAutoCompletions.
I am triggering this message window by trying to run "find class" function.
image

I am running:
(Fiji is Just) ImageJ 2.3.0/1.53f51
Java 1.8.0_172 [64-bit]
on Ubuntu 20.04.3

I would really appreciate help with this, since I have failed to setup eclipse with auto-completions for all Fiji classes.