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.
The download continued and the modules seem to have installed ok. Don't remember all the modules i added. I added almost all of them.
Created attachment 8638 [details] Ide.log containing IllegalArgumentException for issue 30260
This really does not look like AU bug. There is no autoupdate class in the stack traces. Passing to vcs mnodule for evaluation
Well, I'm not able to reproduce it and I do not see anything about additional modules installed from autoupdate in your ide.log. Which modules did you install? When did you try to access the Mount menu? Any steps that will lead to reproduction would help. Decreasing the priority to P4, my understanding is, that this exception was thrown due to a very rare IDE state (Templates/Mount/VCS folder can not be found although it's defined in the module XML layer).
This is quite strange. Templates/Mount/VCS folder has disappeared from the SystemFileSystem. It looks like vcscore module was uninstalled, but it does not seem like that from the ide.log. IMHO that looks like a strange bug in openide/core of module install/uninstall process. Since you didn't provide a more detailed description I'm resolving it as "worksforme". This has never happened to me.
No response from submitter for a long time. Verifying ...