I believe the default smooth() mode is smooth(2).

Try using noSmooth() in setup() to remove the warning message.

smooth is on by default. (see http://www.processing.org/reference/smooth_.html)/.
but its not implemented under android mode.
so don't worry !

Calling noSmooth() does not solve the problem. I am calling noSmooth() in setup() and in draw(). The application crashes with the same error.