Java Heap space (the forester)

archive biomonkey
1

Hello everyone!



I’m trying to use the forester for importing trees and grass in my game.



The grass works perfectly well, but when I’m importing trees, I get an error :


Grave: Uncaught exception thrown in Thread[LWJGL Renderer Thread,5,main]
java.lang.OutOfMemoryError: Java heap space
at com.jme3.export.binary.BinaryImporter.readString(BinaryImporter.java:289)
at com.jme3.export.binary.BinaryImporter.load(BinaryImporter.java:182)
at com.jme3.export.binary.BinaryImporter.load(BinaryImporter.java:126)
at com.jme3.export.binary.BinaryImporter.load(BinaryImporter.java:110)
at com.jme3.asset.DesktopAssetManager.loadAsset(DesktopAssetManager.java:282)
at com.jme3.asset.DesktopAssetManager.loadModel(DesktopAssetManager.java:368)
at com.jme3.asset.DesktopAssetManager.loadModel(DesktopAssetManager.java:372)
at SimpleTreeTest.setupForester(SimpleTreeTest.java:203)
at SimpleTreeTest.simpleInitApp(SimpleTreeTest.java:174)
at com.jme3.app.SimpleApplication.initialize(SimpleApplication.java:225)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.initInThread(LwjglAbstractDisplay.java:130)
at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:207)
at java.lang.Thread.run(Unknown Source)


So I read some topics relating this and I tried to change the default heap space size in my game by adding these options:

-Xms512m
-Xmx1024m
-XX:+UseParallelGC
-XX:PermSize=512M
-XX:MaxPermSize=1024M



But it doesn't fix it :s

Thank you.
2

is it the demo throwing these exceptions?

3

Yep. That’s really strange. I tried this on eclipse and with the sdk but nothing change.



EDIt: Ho and I forgot something, I can’t import the tree in the default test-data. So I downloaded the last one in the SVN. And with this one, the heap space issue appeared.





EDIT2: I cleaned all the project and resintalled the forester and tried again and it works. Can’t figure out why, but it works fine.



Thank you !

4

Note jme uses a lot of direct memory, thats not part of the heap.

5

@drweedy

You’re welcome.