I'm trying to use code from  http://wiki.processing.org/w/Multiple_key_presses ( Option 1 ) to detect m ultiple key presses in my simple game project. But there's the strange issue that occurs for me, but not at every launch.

       Sometimes when I'm holding a key (for example "a"), keyReleased() method is called unexpectedly after few seconds. It sets my  keys [ keyCode ] to false  (just like in the  Option 1  example) and it fails my game logic.  

      Is this a bug? Or am I doing something wrong?