out of memory

[Tom Eugelink]

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