question: protected void createBuffers ( int numBuffers , BufferCapabilities caps ) throws AWTException { if ( numBuffers < 2 ) { throw new IllegalArgumentException ( "Number of buffers cannot be less than two" ) ; } else if ( peer == null ) { throw new IllegalStateException ( "Component must have a valid peer" ) ; } else if ( caps == null || ! caps . isPageFlipping ( ) ) { throw new IllegalArgumentException ( "Page flipping capabilities must be specified" ) ; } width = getWidth ( ) ; height = getHeight ( ) ; if ( drawBuffer != null ) { drawBuffer = null ; drawVBuffer = null ; destroyBuffers ( ) ; } if ( caps instanceof ExtendedBufferCapabilities ) { ExtendedBufferCapabilities ebc = ( ExtendedBufferCapabilities ) caps ; if ( ebc . getVSync ( ) == VSYNC_ON ) { if ( ! VSyncedBSManager . vsyncAllowed ( this ) ) { caps = ebc . derive ( VSYNC_DEFAULT ) ; } } } peer . createBuffers ( numBuffers , caps ) ; updateInternalBuffers ( ) ; }
target:  Creates one or more complex, flipping buffers with the given capabilities.