I'm seeing a problem with IDEA editor in IU-96.1121. If I bring another application into the foreground, it is causing the IDEA editor to reparse the sourcefile each time.
This is 100% reproducible for me. Windows 2008 R2 x64, JDK 1.6.0_20, IU-96.1121.
I have captured a cpu snapshot and filed a youtrack.
IDEA-58558 [performance] Overlapping some other app over IDEA's editor panel is triggering a complete reparse of the source file!