The open API in the package com.intellij.openapi.fileEditor.* has been
changed in the build 922. Some plugins may not work properly and cause IDEA
to crash (see http://www.intellij.net/tracker/idea/viewSCR?publicId=15875).
If you encounter such problems couldn't you please remove problematic
plugins until their vendors reflected the changes in API.
Sorry for inconvenience.
JetBrains, Inc / IntelliJ Software
"Develop with pleasure!"