removeFromParent() causes exception

Troubleshooting graphics
1

Hello,

Im removing some nodes from the rootNode. Im not using the simpleUpdate() method (i extend SimpleGame at the moment) which may be the reason. I start the  thread that does some stuff and at the end it calls the method from one of my classes that removes a node it contains from the rootNode and most often i get this:


SEVERE: Exception in game loop
java.lang.IndexOutOfBoundsException: Index: 52, Size: 52
   at java.util.ArrayList.RangeCheck(Unknown Source)
   at java.util.ArrayList.get(Unknown Source)
   at com.jme.scene.Node.draw(Unknown Source)
   at com.jme.scene.Spatial.onDraw(Unknown Source)
   at com.jme.renderer.lwjgl.LWJGLRenderer.draw(Unknown Source)
   at com.jme.app.SimpleGame.render(Unknown Source)
   at com.jme.app.BaseGame.start(Unknown Source)
   at MojaKlasa.main(MojaKlasa.java:70)


Any ideas?
thanks
2

The scenegraph API is not threadsafe (for perfomance reasons). Make sure you only access it from the main thread or synchronize your access to it.

3

Thanks i suspected that this might be the case. Problem solved.