public static void checkArgument(boolean condition, String message, Object... messageArguments) {
		if (!condition) {
			throw new IllegalArgumentException(String.format(message, messageArguments));
		}
	}
public static void checkArgument ( boolean condition , String message , Object ... messageArguments ) { if ( ! condition ) { throw new IllegalArgumentException ( String . format ( message , messageArguments ) ) ; } }
Throws an {@link IllegalArgumentException} if parameter <code>condition</code> is <code>false</code>.