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.
None of the occurred exceptions is logged to the logfile ide.log
This is not enough information for a bug report. E.g what exceptions are not logged to the log file? What log file? I often see lots of exceptions in the ide.log file, if that is the file you are talking about. Also, exceptions (& ide.log) are handled by the core. If you want to request a fix or enhancement for that exception handling, please file a bug (with more details) against the core.
*** Issue 17421 has been marked as a duplicate of this issue. ***