Problem loading .obj

Hi all
I am trying to load model into java 3d but it gives me the following error
exception in thread "main" java.lang.OutOfMemoryError
can some one tell me how i can increase the memory stack for me to be abler to load models with large file size
thanks in advance.

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Hai guys,
I am new to java3D. I need to load the .obj which has the .mtl and the respective pics for its texture.(The .obj file .mtl and the relevant pics are all in the same folder) The Problem is obj file is being loaded but the output we got is no where near what we see in 3DMax. What is the problem?. Where i am going wrong.
Thanks in Advance,
Prakash Anandaraj. C

D'Oh!
First post, and already posted the wrong code...
This is the right code, where I load the OBJ-Model:
public void UseOBJModel(String path)
        ObjectFile loader = new ObjectFile();
        Shape3D shape = new Shape3D();
        try
            Scene tmpScene = loader.load(path);
             Enumeration children = tmpScene.getSceneGroup().getAllChildren();
             Shape3D tmp = (Shape3D)children.nextElement();
             shape.setGeometry(tmp.getGeometry(),0);//This for killing the leading null in the GeometryList
            //Combining all Shape3Ds from the OBJ-Model into one single shape
            while(children.hasMoreElements())
                tmp = (Shape3D)children.nextElement();
                 shape.addGeometry(tmp.getGeometry());
            //TODO: Hard setting of Color for OBJ-Shape.Can be improved later
            Appearance objApp = new Appearance();
            Material objMat = new Material();
            ColoringAttributes col = new ColoringAttributes();
            objMat.setAmbientColor(new Color3f(.3f,.3f,.3f));
            objMat.setDiffuseColor(new Color3f(.5f,.5f,.5f));
            objMat.setSpecularColor(new Color3f(.6f,.6f,.6f));
            objMat.setLightingEnable(true);
            objApp.setMaterial(objMat);
            objApp.setColoringAttributes(col);
            col.setColor(.6f,.6f,.6f);
            shape.setAppearance(objApp);
            SetOriginalShape(shape);
        catch(FileNotFoundException e)
            System.err.println("Something went wrong while loading OBJ-File");
    }Sorry...

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Hello!
I want to load a 3D-Model in OBJ-Format in my Scene with the standard Objectloader com.sun.j3d.loaders.objectfile. This works basically well.
But I need to get hold of the Vertices of the Model and their colors. And this is the Problem:
-I try to get the Coordinates from the Shape3Ds GeometryArray with getCoordinate() and receive the following error:
GeometryArray: cannot directly access data in BY_REFERENCE mode
This is as I assume because the loader creates the Shape3D BY REFERENCE.
Is there another loader or a trick, so that the GeometryArrays of my loaded OBJ-Models are set up as BY COPY?
Code where I load my Model:
public BranchGroup UseOBJModel_Old(String path)
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        BranchGroup bg = new BranchGroup();
        Shape3D shape = new Shape3D();
        try
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             Enumeration children = tmpScene.getSceneGroup().getAllChildren();
            //Combining all Shape3Ds from the OBJ-Model into one single shape
            while(children.hasMoreElements())
                 Shape3D tmp = (Shape3D)children.nextElement();
                 shape.addGeometry(tmp.getGeometry());
            //TODO: Hard setting of Color for OBJ-Shape.Can be improved later
            Appearance objApp = new Appearance();
            Material objMat = new Material();
            ColoringAttributes col = new ColoringAttributes();
            objMat.setAmbientColor(new Color3f(.3f,.3f,.3f));
            objMat.setDiffuseColor(new Color3f(.5f,.5f,.5f));
            objMat.setSpecularColor(new Color3f(.6f,.6f,.6f));
            objMat.setLightingEnable(true);
            objApp.setMaterial(objMat);
            objApp.setColoringAttributes(col);
            col.setColor(.6f,.6f,.6f);
            shape.setAppearance(objApp);
            bg.addChild(shape);
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for(int j = 0; j < originalArray.getValidVertexCount() / divisor; j++)//Calculate Points for LOD-Models
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Bye
Chris

D'Oh!
First post, and already posted the wrong code...
This is the right code, where I load the OBJ-Model:
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