I've been investigating an insidious error in an Android OpenGL game app. 
 This error was brought to my attention by ACRA.

I believe that the source of the error is that the code in an onTouchEvent 
executes in a different thread than the code
 in the OpenGL drawing thread.

So, basically, the drawing thread was looping thru some enemy ships trying 
to draw them.

Meanwhile, someone pressed the reset button on the game (an onTouchEvent), 
and the enemy ship LinkedList got cleared.  This clearing occurred while 
the drawing thread was looping thru them.  Thus an 
IndexOutOfBoundsException occurred.

Anyhow, I guess my question is...  how would the professional Android 
developer have prevented this?

Thanks.


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