return k.getEncoded();
            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
                throw new SmbException("Failed to query Kerberos session key from ExtendedGSSContext", ex);
            }
        }
        throw new SmbException("ExtendedGSSContext is not implemented by GSSContext");
    }

    @Override

        doThrow(new CIFSException("Close failed")).when(delegate).close();

        TestIterator iterator = new TestIterator(null);

        CIFSException ex = assertThrows(CIFSException.class, iterator::close);
        assertEquals("Close failed", ex.getMessage());
    }

    @Test
    @DisplayName("Remove delegates to underlying iterator")
    void removeDelegation() {

                writeSecurityBuffer(type1, 24, 32 + domain.length, workstation);
            }
            return type1;
        } catch (final IOException ex) {
            throw new IllegalStateException(ex.getMessage());
        }
    }

    @Override
    public String toString() {
        final String suppliedDomain = getSuppliedDomain();

    RuntimeException re = new RuntimeException(iae);
    IllegalStateException ex = new IllegalStateException(re);

    assertThat(getCausalChain(ex)).containsExactly(ex, re, iae, sue).inOrder();
    assertSame(sue, Iterables.getOnlyElement(getCausalChain(sue)));

    List<Throwable> causes = getCausalChain(ex);
    assertThrows(UnsupportedOperationException.class, () -> causes.add(new RuntimeException()));
  }

    @Test
    @DisplayName("release below zero throws RuntimeCIFSException")
    void release_belowZero_throws() {
        SmbTreeConnection c = newConn();
        RuntimeCIFSException ex = assertThrows(RuntimeCIFSException.class, c::release);
        assertTrue(ex.getMessage().toLowerCase().contains("usage count"));
    }

    @Test
    @DisplayName("isConnected reflects underlying tree state")
    void isConnected_usesTree() {

            } catch (final IOException ex) {}
        }
        final int domainLength = domain.length;
        byte[] server = {};
        try {
            final String host = NbtAddress.getLocalHost().getHostName();
            if (host != null) {
                try {
                    server = host.getBytes(UNI_ENCODING);
                } catch (final IOException ex) {}
            }

                                    } catch (final Exception ex) {
                                        throw new InvalidQueryException(
                                                messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY),
                                                ex.getLocalizedMessage(), ex);
                                    }
                                }));

        void testGetSigningKeyThrows() {
            DummySSPContext ctx = new DummySSPContext(null, false, null, null, 0, false);
            CIFSException ex = assertThrows(CIFSException.class, ctx::getSigningKey);
            assertTrue(ex.getMessage().contains("signing key"));
        }

        @Test
        @DisplayName("initSecContext throws on invalid ranges")
        void testInitSecContextInvalidRanges() {

    }

    @Override
    public Object clone() {
        try {
            return new HMACT64(this);
        } catch (final CloneNotSupportedException ex) {
            throw new IllegalStateException(ex.getMessage());
        }
    }

    @Override
    protected byte[] engineDigest() {
        final byte[] digest = this.md5.digest();
        this.md5.update(this.opad);

            } catch (final Exception ex) {
                final String msg = ex.getMessage();
                final boolean timeout = msg != null && msg.equals("Read timed out");
                /* If just a timeout, try to disconnect gracefully
                 */
                final boolean hard = !timeout;

                if (!timeout && LogStream.level >= 3) {
                    ex.printStackTrace(log);
                }