code: public boolean getReuseAddress() throws SocketException {
          if (isClosed())
              throw new SocketException("Socket is closed");
          return ((Boolean) (getImpl().getOption(SocketOptions.SO_REUSEADDR))).booleanValue();
      }
docs: Tests if SO_REUSEADDR is enabled.
  
  @return a <code>boolean</code> indicating whether or not SO_REUSEADDR is enabled.
  @exception SocketException if there is an error
  in the underlying protocol, such as a TCP error.
  @since   1.4
  @see #setReuseAddress(boolean)