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Created attachment 136023 [details] Sequence of thread dumps 20130617-56bd2b207b91. Had been editing various Java sources, etc. Now tried to select a bit of text from a hyperlink in changelog.html in Jenkins sources. The IDE suddenly got very slow. I gave up, closed this window, and tried to click in another source window; now the IDE froze completely, initially with ~300% CPU, then 100% CPU. Got some thread dumps before I killed it.
Hi Jesse, it should be dup of issue 231013 (though in that one's threaddump there's a thread doing closeDocument() as well but that should not matter). I'm working on a fix. *** This bug has been marked as a duplicate of bug 231013 ***