question: @ Override public void assertOperationSupported ( Component target , int numBuffers , BufferCapabilities caps ) throws AWTException { if ( numBuffers > 2 ) { throw new AWTException ( "Only double or single buffering is supported" ) ; } BufferCapabilities configCaps = getBufferCapabilities ( ) ; if ( ! configCaps . isPageFlipping ( ) ) { throw new AWTException ( "Page flipping is not supported" ) ; } if ( caps . getFlipContents ( ) == BufferCapabilities . FlipContents . PRIOR ) { throw new AWTException ( "FlipContents.PRIOR is not supported" ) ; } }
target:  Checks that the requested configuration is natively supported; if not, an AWTException is thrown.