Fatal Exception java.lang.NegativeArraySizeException

[ocram]

I was just playing around with the Vector2[] array for PhysicsFactory.createPolygonBody() when, for some configuration, the following Exception occurred:

Fatal Exception java.lang.NegativeArraySizeException
-1087563695

RenderOfPolyFixture.java line 22
org.andengine.extension.debugdraw.RenderOfPolyFixture.<init>

DebugRenderer.java line 232
org.andengine.extension.debugdraw.DebugRenderer$RenderOfBody.<init>

DebugRenderer.java line 77
org.andengine.extension.debugdraw.DebugRenderer.onManagedUpdate

Entity.java line 1405
org.andengine.entity.Entity.onUpdate

Entity.java line 1656
org.andengine.entity.Entity.onManagedUpdate

Scene.java line 283
org.andengine.entity.scene.Scene.onManagedUpdate

Entity.java line 1405
org.andengine.entity.Entity.onUpdate

Engine.java line 611
org.andengine.engine.Engine.onUpdateScene

Engine.java line 606
org.andengine.engine.Engine.onUpdate

LimitedFPSEngine.java line 57
org.andengine.engine.LimitedFPSEngine.onUpdate

Engine.java line 568
org.andengine.engine.Engine.onTickUpdate

Engine.java line 858
org.andengine.engine.Engine$UpdateThread.run

Could this have been an overflow? The size of my array was not negative, obviously. I was just testing arrays with 6 to 12 elements.

[nazgee]

Thanks for the report!

I am not entirely sure how it's possible:

        PolygonShape fixtureShape = (PolygonShape) fixture.getShape();
        int vSize = fixtureShape.getVertexCount();
        float[] xPoints = new float[vSize]; // negative index HERE?!
        float[] yPoints = new float[vSize];

As strange as it seems... I assume that this is an issue with DebugDraw. Are you aware of any (relatively simple) way to reproduce this issue, so I can try it on my end?