Recently, my IntelliJ 8.01 install stopped recognizing annotations w/ syntax highlighting. Then, it wouldn’t commit to subversion unless you removed the ‘optimize imports’ feature. Then, the debugger stopped working for incoming web requests, but it worked fine for debugging unit tests.
I’m on Mac OS 10.5.x . I reinstalled the IntelliJ application package, but that did nothing. Next, I renamed the IntelliJ 8 cache folder, so Intellij would create a new one the next time it started. This solved all the problems.
This folder on a Mac is located here:
/Users/[your user name]/Library/Caches/IntelliJIDEA80
/Users/[your user name]/Library/Caches/IntelliJIDEA70