if (!props.isLegalPropertyKey(qnameString))
if (!OutputProperties.isLegalPropertyKey(qnameString))
  public String getOutputProperty(String qnameString)          throws IllegalArgumentException  {    String value = null;    OutputProperties props = getOutputFormat();    value = props.getProperty(qnameString);    if (null == value)    {      if (!props.isLegalPropertyKey(qnameString))        throw new IllegalArgumentException(XSLMessages.createMessage(XSLTErrorResources.ER_OUTPUT_PROPERTY_NOT_RECOGNIZED, new Object[]{qnameString})); //"output property not recognized: "                                           //+ qnameString);    }    return value;  }