jDeveloper IllegalStateException
jdeveloper IllegalStateException in o.i.explorer.IconOverlayTracker$NodeWatcher:802 My Jdeveloper on my Windows 7 was previously working fine. Build JDEVADF_11.1.1.6.0_GENERIC_111205.1733.6192.1 SVN caused JDeveloper to break, but after enough digging I found this forum post: https://forums.oracle.com/forums/thread.jspa?threadID=2332837 Which, sure enough, mentions the error and SVN. Tried the solution that "Suganth" posted and sure enough it worked. To fix this issues so you can work on your projects again go to: Tools -> Preferences -> Versioning -> General And then uncheck "Use Navigator State Overly Icons" and "Use Navigator State Overly Labels". Life should be better!