out of memory

Kevin Rushforth kevin.rushforth at oracle.com
Tue Nov 6 04:36:18 PST 2012


The dirty nodes collection is a list of nodes in a scene that have had 
their state modified. It is processed and cleared as part of the node 
synchronization step each pulse.

-- Kevin


Tom Eugelink wrote:
> A user of MigPane reported that he ran into a out of memory exception.
>
> http://migcalendar.com/forums/viewtopic.php?f=8&t=3916&p=8717#p8717
>
> I've created a memory dump of this and using the memory analyser tool 
> I only see that it is being held by weak references and the scene node.
>
> Class Name | Shallow Heap | Retained Heap
> ---------------------------------------------------------------------------------------------------------------- 
>
> javafx.scene.control.Button @ 
> 0x319ba2f8                                         |          408 
> |         1,672
> - [60490] javafx.scene.Node[98113] @ 
> 0x29cc8810                                 |      392,464 | 392,464
>    - dirtyNodes javafx.scene.Scene @ 
> 0x27f65d00                                 |          376 | 396,728
>       |- this$0 javafx.scene.Scene$ScenePeerListener @ 
> 0x28003d60                |           16 |            16
>       |  - sceneListener com.sun.javafx.tk.quantum.ViewScene @ 
> 0x27ffb710       | 64 |           168
>       |     |- scene com.sun.javafx.tk.quantum.PrismPen @ 
> 0x27ffc7f0             |           48 |         2,344
>       |     |  - pen com.sun.glass.ui.win.WinView @ 0x27ff4e98 Native 
> Stack     |           72 |           480
>       |     |- scene com.sun.javafx.tk.quantum.GlassViewEventHandler @ 
> 0x27ffc820|           48 |           408
>       |     |- scene com.sun.javafx.tk.quantum.WindowStage @ 
> 0x27f694e8          |           88 |           184
>       |     - Total: 3 entries |              |
>       |- this$0 javafx.scene.Scene$ScenePulseListener @ 
> 0x27f6a300               |           16 |            16
>       |- oldScene, value javafx.scene.Node$4 @ 
> 0x31121ca8                        |           48 |            48
>       - Total: 3 entries |              |
> ---------------------------------------------------------------------------------------------------------------- 
>
>
> What is this dirtyNodes collection and when are nodes placed in it?
>
> Tom
>


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