I was experiencing some odd behavior with IDEA just now. I had made a copy of my working directory so that I could switch the copy to another CVS branch without disturbing my HEAD copy, and when I loaded up the project file from the copy, it just hung (window not repainting) during the loading process. I waited a few minutes and then killed the process and started it up again. It hung again but then finished loading normally, seemingly without problems until I decided to look into the idea.log.
I found these errors scattered throughout the previous run:
java.lang.OutOfMemoryError: PermGen space
And the big pause during the current run's startup seemed to be Ant-related:
2007-03-27 15:35:15,383 INFO - nfig.impl.AntConfigurationImpl - Start up
2007-03-27 15:36:32,320 INFO - enapi.vfs.impl.jar.JarFileInfo - Opening zip-file C:\j2sdk1.4.2_06\src.zip...
Any idea what's going on here?