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It seems that fastjavac.jar is no more and that the fastjavac stuff is in an NBM file. If so, then the Java module should do different stuff when upgrading; probably just needs to ensure that execute permissions are OK on the fastjavac binary. Providing (untested) patch for JavaModule.java which removes some apparently dead code and should do the above as well.
Created attachment 1713 [details] Suggested patch
Done in JavaModule 1.36
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