W. Craig Scratchley

Thanks for reproducing this. I dug into the project's git repo (git.code.sf.net/p/javahexeditor/git) to see if I could spot the mechanism behind the "Unresolved compilation problems" stub, and think I found something worth sharing -- flagging it as a plausible lead, not a confirmed diagnosis. The 0.5.2 release was built April 3, 2021 (the version qualifier "202104030307" is literally the Eclipse build timestamp). The commit right before that, from April 2, 2021 ("Refactor build process and change...

javahexeditor.plugin 0.5.2.202104030307 fails to load on every Eclipse version tried since ~2021 — jar contains "Unresolved compilation problems" stub (missing net.sourceforge.javahexeditor imports)