IntelliJ IDEA Scala plugin problem

I have a issue with new Intellij IDEA 10 and Scala plugin. The editor is permanently freezes when I'm typing anything in the Scala source files. In the other files (java and other) editor works good.

Structure view, scala inspection and show memb开发者_开发百科ers features are switched off. Heap size increased to 1Gb(the IDE actually used just a half of it).

Any suggestions?

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There should be a series of thread dumps in the logs directory (~/Library/Logs/IntelliJIdea10 on MacOS X, ~/.IntelliJIdea10/system/log on Linux, %USERHOME%/.IntelliJIdea10/system/log on Windows). Please file a YouTrack issue at http://youtrack.jetbrains.net/ and attach the thread dump files to it.

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I had a similar problem with IDEA 9. After lots of searching, I found a strange solution: Deactivate the toolbar and/or navigation bar. (Menu: View -> Toolbar, Navigation Bar)

This actually solved it for me. The explanation was that IDEA had a problem rebuilding the icons in those bars somehow and would sometimes get stuck. I don't know if the problem persists with IDEA 10, and I don't know if it will fix your problem. But maybe you want to give it a try. Deactivate those two bars, restart IDEA and see if those interruptions come again.

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IntelliJ is just a Java application, so take advantage of the diagnostic tools for the JVM.

Capture a thread dump during one of the editor lock ups using jstack, as described here. You could also use jconsole or jvisualvm.