Laszlo Kishalmi commented on NETBEANS-931:

Got it. It seems somewhere we have a serious leak on WeakListener. The heapdump 
says we have more than 10 million of 
org.openide.util.WeakListenerImpl$ListenerReference eating up 640 Mb of heap.

Could you provide the IDE build and git commit number as well? It's in the Help 
-> About dialog.

> OutOfMemory after a night of stand-by
> -------------------------------------
>                 Key: NETBEANS-931
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-931
>             Project: NetBeans
>          Issue Type: Bug
>    Affects Versions: 9.0
>            Reporter: Luca Mambretti
>            Priority: Critical
>         Attachments: messages.log, uigestures.xml
> After a full day of work I left the system running (it had manifested the 
> errors described in NETBEANS-901).
> The day after it was out of commission with OOM.
> attached IDE logs and gestures, I also have the heap dump but it's 1.5 gigs 
> so I doubt I'll be able to attach it (sent it thru a WeTransfer link for now)

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