* response code like 404 or 500.
   *
   * @throws IOException if the request could not be executed due to cancellation, a connectivity
   *     problem or timeout. Because networks can fail during an exchange, it is possible that the
   *     remote server accepted the request before the failure.
   * @throws IllegalStateException when the call has already been executed.
   */
  @Throws(IOException::class)
  fun execute(): Response

  /**

  @Test
  @SuppressWarnings("CheckReturnValue")
  public void forTree_acceptsDirectedGraph() throws Exception {
    MutableGraph<String> graph = GraphBuilder.directed().build();
    graph.putEdge("a", "b");

    Traverser.forTree(graph); // Does not throw
  }

  @Test
  public void forTree_withUndirectedGraph_throws() throws Exception {
    MutableGraph<String> graph = GraphBuilder.undirected().build();

  @Test
  @SuppressWarnings("CheckReturnValue")
  public void forTree_acceptsDirectedGraph() throws Exception {
    MutableGraph<String> graph = GraphBuilder.directed().build();
    graph.putEdge("a", "b");

    Traverser.forTree(graph); // Does not throw
  }

  @Test
  public void forTree_withUndirectedGraph_throws() throws Exception {
    MutableGraph<String> graph = GraphBuilder.undirected().build();

    CaseInsensitiveMap<String> map;

    /**
     * @throws Exception
     */
    @Before
    public void setUp() throws Exception {
        map = new CaseInsensitiveMap<String>();
        map.put("one", "1");
        map.put("two", "2");
    }

    /**
     * @throws Exception
     */
    @After
    public void tearDown() throws Exception {
        map = null;
    }

    /**

    }

    private void parse(final byte[] material) throws IOException {
        int pos = 0;
        for (int i = 0; i < 8; i++) {
            if (material[i] != NTLMSSP_SIGNATURE[i]) {
                throw new IOException("Not an NTLMSSP message.");
            }
        }
        pos += 8;

        if (readULong(material, pos) != NTLMSSP_TYPE1) {
            throw new IOException("Not a Type 1 message.");
        }

        if (first.equals(TwoArg.Action.THROW_A_NPE)) {
          verifyBarPass(method, bar); // only pass if 1st param throws NPE
        } else {
          verifyBarFail(method, bar);
        }
      }
    }
  }

  public void testTwoArgNullableNormal() throws Exception {
    Method method = TwoArg.class.getMethod("nullableNormal", String.class, Integer.class);

    }

    /**
     * Test constructor with a token that has an incorrect OID.
     *
     * @throws IOException if an I/O error occurs
     */
    @Test
    void testConstructorWithWrongOid() throws IOException {
        byte[] wrongOidToken = createGssApiWrapper(new ASN1ObjectIdentifier("1.2.3.4.5"), new byte[0]);

    public void tearDown() throws IOException {}
  }

  private static class EmptyCharSourceFactory implements CharSourceFactory {

    @Override
    public CharSource createSource(String data) throws IOException {
      return CharSource.empty();
    }

    @Override
    public String getExpected(String data) {
      return "";
    }

    @Override
    public void tearDown() throws IOException {}
  }

    /**
     *
     * @return this pipe's output stream
     * @throws CIFSException if an error occurs
     */
    @Override
    SmbPipeOutputStream getOutput() throws CIFSException;

    /**
     * Ensures that the tree connection is established and returns it.
     *
     * @return tree connection
     * @throws CIFSException if an error occurs connecting to the tree
     */

        @Test
        public void testGetPath() throws MalformedURLException {
            // Path should be the original, uncanonicalized URL
            String url = "smb1://server/share/../share/file.txt";
            SmbFile smbFile = new SmbFile(url);
            assertEquals(url, smbFile.getPath());
        }

        @Test
        public void testGetCanonicalPath() throws MalformedURLException {