[NETBEANS-4363] Apache Netbeans 12.0 beta4 hangs/fails to quit

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 12.0
• Component/s: core
• Environment: Mac OS X Catalina 10.15.4
• Assignee: Unassigned
• Reporter: David Gradwell
• Created: 22/May/20 14:04
• Updated: 22/May/20 14:42

Description

After significant use and then leaving NetBeans for an hour when I tried to use it again I got a  spinning rainbow wheel which is the Mac OS X indicator for an unresponsive application.

On going quit NetBeans failed to quit and I had to go "Force Quit".

 

On restarting all my Java files had error  marks. 

Hover over one of the marks and I see “Error parsing file”.

I can clean & build a project but the error markings do not go away.

 

The NetBeans goes into "busy wheel mode again.  On going quit again the quit fails and force quit has to be used.

Last 3 session logs attached.

Willing to run any recommended diagnostics as this is looking like it is repeatable.