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I tried to add some projects to my project's compile-time libraries. Always when I had add a project to libraries and confirmed Project Properties dialog the Project Properties Changed dialog appeared and IDE froze. I must set the project dependencies by editing of nbproject/* files.
Created attachment 21032 [details] full threaddump
I recognized that the project is from 4.0. It probably wants to upgrade it to 4.1.
Not sure. IMHO this is a bug in Explorer/Nodes - that it tries to use a Mutex just to repaint, while using multiple threads - but that cannot be fixed right now. Perhaps it would suffice for J2SEPhysicalViewProvider.LogicalViewChildren.stateChanged to be a little safer still and call setKeys not only later, but always in EQ - e.g. EventQueue.invokeLater, not rp.post (meaning J2SEPhysicalViewProvider.rp could be deleted as it is used only for this)?
Checking in j2seproject/src/org/netbeans/modules/java/j2seproject/ui/J2SEPhysicalViewProvider.java; /cvs/java/j2seproject/src/org/netbeans/modules/java/j2seproject/ui/J2SEPhysicalViewProvider.java,v <-- J2SEPhysicalViewProvider.java new revision: 1.48; previous revision: 1.47 done
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