assertThrows(CIFSException.class, () -> ctx.initSecContext(buf, 3, 1));
            assertThrows(CIFSException.class, () -> ctx.initSecContext(buf, 2, 2));
        }

        @Test
        @DisplayName("initSecContext null token edge cases")
        void testInitSecContextNullToken() throws Exception {
            DummySSPContext ctx = new DummySSPContext(new byte[] { 1 }, false, null, null, 0, false);

    }

    @Test
    @DisplayName("initSecContext wraps GSSException into SmbAuthException")
    void initSecContext_failure_wraps() throws Exception {
        when(gssContext.initSecContext(any(), anyInt(), anyInt())).thenThrow(new GSSException(GSSException.DEFECTIVE_TOKEN));
        assertThrows(SmbAuthException.class, () -> ctx.initSecContext(new byte[] {}, 0, 0));
    }

     * Initialize the GSSContext to provide SPNEGO feature.
     *
     * @param inputBuf
     * @param offset
     * @param len
     * @return response token
     */
    @Override
    public byte[] initSecContext(final byte[] inputBuf, final int offset, final int len) throws CIFSException {
        SpnegoToken resp;
        if (this.completed) {
            throw new CIFSException("Already complete");
        }

        }
        throw new SmbException("ExtendedGSSContext is not implemented by GSSContext");
    }

    @Override
    public byte[] initSecContext(byte[] token, int off, int len) throws SmbException {
        try {
            return this.gssContext.initSecContext(token, off, len);
        } catch (GSSException e) {
            throw new SmbAuthException("GSSAPI mechanism failed", e);
        }
    }

     * @param targetName
     *            the target's SPN
     */
    public void setTargetName(final String targetName) {
        this.targetName = targetName;
    }

    @Override
    public byte[] initSecContext(final byte[] token, final int offset, final int len) throws SmbException {
        return switch (this.state) {
        case 1 -> makeNegotiate(token);
        case 2 -> makeAuthenticate(token);

                            state = 0;
                            break;
                        }

                        try {
                            token = nctx.initSecContext(token, 0, token.length);
                        } catch (final SmbException se) {
                            /* We must close the transport or the server will be expecting a