code: public boolean setProperties(Dictionary<String, String> properties)
      {
          boolean success = super.setProperties(properties);
          proxyURLPrefix = this.getProperty(PROXY);
          if (proxyURLPrefix != null)
              if (proxyURLPrefix.endsWith("/"))
                  proxyURLPrefix = proxyURLPrefix.substring(0, proxyURLPrefix.length() - 1);
          return success;
      }
docs: Set the properties. Override this to set any configuration up.