This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.
Cannot expand source files in the IDE source explorer says scanning. Get multiple null pointer exceptions during this time
I am experiencing similar behavior in Netbeans 5.5. This also seems to break the Navigator pane and pretty much all forms of auto-completion. Attempts to JavaDoc the project also throw a null pointer exception.
Created attachment 38002 [details] Log file from Netbeans 5.5 after it throws NPE
In my case, the problem could be resolved by uninstalling Netbeans, deleting the .netbeans folder, and then reinstalling. Deleting the .netbeans folder appears to be important, as simply reinstalling Netbeans will not fix the problem. Upon request, I can upload any files from my old .netbeans folder. I do not want to upload the entire folder to the public because I have not taken the time nor confidence to go through it and remove any private information (my impression is that Subversion server addresses are stored in here, possibly as well as usernames and passwords for those servers).
Reassigning to java - javacore for evaluation
This exceptions are caused by broken metadata. To solve it you should delete ${userdir}/var/cache/mdrstorage folder, it will be regenerated on next ide startup. There no need to delete whole NB installation or whole userdir (you will not lose you settings). Unfortunately we cannot do much about it since the whole infrastructure using metadata was completely rewritten in upcoming version 6.0
Reorganization of java component