assertSame(exception, Throwables.getRootCause(exception));
  }

  public void testGetRootCause_SingleWrapped() {
    SomeCheckedException cause = new SomeCheckedException();
    SomeChainingException exception = new SomeChainingException(cause);
    assertSame(cause, Throwables.getRootCause(exception));
  }

  public void testGetRootCause_DoubleWrapped() {

    assertSame(exception, Throwables.getRootCause(exception));
  }

  public void testGetRootCause_SingleWrapped() {
    SomeCheckedException cause = new SomeCheckedException();
    SomeChainingException exception = new SomeChainingException(cause);
    assertSame(cause, Throwables.getRootCause(exception));
  }

  public void testGetRootCause_DoubleWrapped() {

        this.rootCause = rootCause;
    }
    public TransportException( String msg, Throwable rootCause ) {
        super( msg );
        this.rootCause = rootCause;
    }

    public Throwable getRootCause() {
        return rootCause;
    }
    public String toString() {
        if( rootCause != null ) {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter( sw );

        return this.error;
    }


    /**
     * 
     * @return the root cause
     * @deprecated use {@link #getCause()}
     */
    @Deprecated
    public Throwable getRootCause () {
        return getCause();
    }

    public TransportException ( String msg, Throwable rootCause ) {
        super(msg, rootCause);
    }


    /**
     * 
     * @return root cause
     */
    @Deprecated
    public Throwable getRootCause () {
        return getCause();
    }

    }

    protected IOException seToIoe(SmbException se) {
        IOException ioe = se;
        Throwable root = se.getRootCause();
        if (root instanceof TransportException) {
            ioe = (TransportException)root;
            root = ((TransportException)ioe).getRootCause();
        }
        if (root instanceof InterruptedException) {
            ioe = new InterruptedIOException(root.getMessage());

    }
    public DcerpcException(String msg, Throwable rootCause) {
        super(msg);
        this.rootCause = rootCause;
    }
    public int getErrorCode() {
        return error;
    }
    public Throwable getRootCause() {
        return rootCause;
    }
    public String toString() {
        if (rootCause != null) {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw);

     */
    public int getNtStatus () {
        return this.status;
    }


    /**
     * 
     * @return cause
     */
    @Deprecated
    public Throwable getRootCause () {
        return this.getCause();
    }


    /**
     * @param e
     * @return a CIFS exception wrapped in an SmbException
     */
    static SmbException wrap ( CIFSException e ) {

        status = winerr ? errcode : getStatusByCode( errcode );
    }

    public int getNtStatus() {
        return status;
    }
    public Throwable getRootCause() {
        return rootCause;
    }
    public String toString() {
        if( rootCause != null ) {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter( sw );

   *
   * <pre>
   * assertEquals("Unable to assign a customer id", Throwables.getRootCause(e).getMessage());
   * </pre>
   *
   * @throws IllegalArgumentException if there is a loop in the causal chain
   */
  public static Throwable getRootCause(Throwable throwable) {
    // Keep a second pointer that slowly walks the causal chain. If the fast pointer ever catches