public static AWTKeyStroke getAWTKeyStroke(int keyCode, int modifiers, boolean release)
public static AWTKeyStroke getAWTKeyStroke(char keyChar)
  public static AWTKeyStroke getAWTKeyStroke(int keyCode, int modifiers,                                             boolean release)  {    return getAWTKeyStroke(KeyEvent.CHAR_UNDEFINED, keyCode,                           extend(modifiers), release);  }