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.
1. Click "Tools -> Libraries". 2. Click "New Library ..." button. 3. Type "My Library" in 'Library Name:' filed. Result: "The library name contains invalid characters" message appears and "OK" button becomes disabled, but a lot of default libraries contain space in its names.
*** This issue has been marked as a duplicate of 46863 ***