out of memory

Kevin Rushforth kevin.rushforth at oracle.com
Tue Nov 6 04:56:00 PST 2012


Correct. One short-lived exception to that would be if a node was 
modified and then removed from the scene in the same frame. In this case 
it would exist in the dirty nodes list until the next synchronization pulse.

-- Kevin


Tom Eugelink wrote:
> I figured as much, so these nodes still are part of the scene. They 
> are not "to be removed", correct?
>
> Tom
>
>
>
> On 2012-11-06 13:36, Kevin Rushforth wrote:
>> 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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