public void setProperties(Properties newProperties) {
    Properties properties = getProperties();
    properties.clear();
    if (null == newProperties) return;
    Enumeration<?> newPropertyNames = newProperties.propertyNames();
    while (newPropertyNames.hasMoreElements()) {
      String key = newPropertyNames.nextElement().toString();
      String value = newProperties.getProperty(key);
      properties.setProperty(key, value);
    }
  }
public void setProperties(Properties newProperties)