Applet reload problem

Troubleshooting General Help
1

Hi all,



I have a problem when I try to reload a SimpleJMEApplet. This is the trace I got:



java.lang.NullPointerException

at org.lwjgl.opengl.GL11.glDeleteTextures(GL11.java:716)

at com.jme.scene.state.lwjgl.LWJGLTextureState.deleteAll(Unknown Source)

at com.jme.scene.Text.resetFontTexture(Unknown Source)

at com.jmex.awt.applet.SimpleJMEApplet.init(Unknown Source)

at sun.applet.AppletPanel.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)



Seems that some textures has not been correctly cleaned. I try to reset the DisplaySystem previous to init the applet but the problem continues. I was using a pretty new CVS version but I have updated my jmonkey version and the problem is still here.



Someone has detected that? Any idea to solve this point?



Thanks in advance,



    Juan

2

i am not familiar with Applets, but when seeing GL11 and Thread in the same backtrace i immidiately think of GameTaskQueue Manager :slight_smile:

Try to wrap the Text.resetFontTexture in GameTask which gets executed in the OpenGL thread.



see:

http://www.jmonkeyengine.com/wiki/doku.php?id=some_standardgame_frequently_asked_questions#are_gametasks_a_way_to_insert_code_in_the_main_opengl_thread_queue_from_outside

3

Problem is with SimpleJMEApplet calling resetFontTexture outside of teh openGL thread.



Also see: http://www.jmonkeyengine.com/jmeforum/index.php?topic=8987.0