Created attachment 1026 [details]
stacktrace

Maybe:

Main thread is trying to find "Menu". It means it can be synchronized just on
root of the filesystem.

Refresh request found a newly created file on the LocalFileSystem. The series of
notification resulted in a deadlock. IMHO the file had to be created in to root
of system directory. Which file we usually create there? ide.log. Do we create
it via FileObject or java.io.File interface?

I agree with Yarda. But I´m not sure that RefreshRequest notified user-layer 
that ide.log was created(fired from refreshFolder ). In case of ide.log I would 
expect notification: fileDataCreated and not fileFolderCreated ? Perhaps 
Projects ? 

I think that principle (described in #10507) that should prevent from deadlocks 
in MFS  is right. But there was implementation gap that caused this deadlock. 
It is difficult to judge what can be affected with this fix. But there is not 
time enough for systematic testing. So fixed in trunk and release32. 

Target milestone -> 3.2

closed