NetBeans 6.1 hangs while starting up

by ADeshpande :: Rate this Message:

I have a JSF project, and a few plain Java projects in my workspace. On startup, the IDE window comes up, and NetBeans initiates a scan of the jars. The IDE doesn't respond to button clicks. Eventually the VM size of the IDE process stops changing in Windows Task Manager. The IDE window is grey at this point. The IDE log contains one exception (excerpt below), followed by a few warnings and info messages. The last message is

INFO [org.netbeans.core.ui.warmup.DiagnosticTask]: Total memory 2,147,483,647

I deleted the .netbeans\6.1\var\cache folder after killing NetBeans, and retried, with the same results. Has anybody experienced these symptoms? Thanks.

Exception excerpt:
================
INFO [org.netbeans.core.windows.persistence]: [PersistenceManager.getTopComponentForID] Problem when deserializing TopComponent for tcID:'MultiView-PageFlow#007CXML#007C'. Reason: java.lang.NoSuchMethodException: org.netbeans.modules.web.jsf.JSFConfigMultiviewDescriptor$JSFConfigMultiviewElement.<init>()

msg
msg
msg
Caused: java.lang.NoSuchMethodException: org.netbeans.modules.web.jsf.JSFConfigMultiviewDescriptor$JSFConfigMultiviewElement.<init>()
at java.lang.Class.getConstructor0(Class.java:2678)
at java.lang.Class.getDeclaredConstructor(Class.java:1953)
at org.openide.windows.TopComponent$Replacer.readObject(TopComponent.java:1433)
Caused: java.io.IOException
at org.openide.windows.TopComponent$Replacer.readObject(TopComponent.java:1489)

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