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This bug was originally marked as duplicate of bug 183962, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 7.2 Beta (Build 201205031832) VM: Java HotSpot(TM) Client VM, 22.1-b02, Java(TM) SE Runtime Environment, 1.7.0_03-b05 OS: Windows 7 Maximum slowness yet reported was 32277 ms, average is 32277
Created attachment 121458 [details] nps snapshot
Analyzing snapshots attached to Exception Reports, EDT is blocked by GsfReformatTask trying to acquire the parser lock while RepositoryUpdater$Work.indexEmbeddings() is in progress. From the majority of snapshots it seems that HtmlIndexer is extremely slow.
The issue of HtmlIndexer creating a HtmlFileModel which triggered file parsing has been already fixed. No parsing of html file is done when it is being indexed, only a very fast lexer based analysis.