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.
[release32 apr 5] Not sure how to reproduce, but I was working with the IDE (fresh build, fresh user dir) and created a DataLoader template from API Support, compiled etc. I also had a modified Ant script in the Editor window. Was using MDI mode. I clicked the close button on the Editor window, and got an exception (attached). Most files except one source file and the Ant script were now gone from Editor window. Saved Ant script, closed that tab (leaving only this one source file there), got exception again. Clicked close on Editor window again and it worked. Afterwards the same source file could be opened and closed without error.
Created attachment 1010 [details] IllegalArgumentException's from window system
Reassigning to Marek, he's working on this issue now. I tightened rules in method setSelectedTopComponent and these exceptions indicate that it's being called in invalid way under some circumstances.
Duplicate of #10265 root cause is the same - invalid call of stateChanged from componentRemoved in SplitContainerImpl and MultiTabbedContainerImpl - more details look in #10265. *** This issue has been marked as a duplicate of 10265 ***
Resolved for 3.4.x or earlier, no new info since then -> verified.
Resolved for 3.4.x or earlier, no new info since then -> closing.