assertNotNull(request.getClientGuid());
        assertNotNull(request.getNegotiateContexts());
        assertNotNull(request.getPreauthSalt());

        // Verify data integrity
        assertEquals(16, request.getClientGuid().length);
        assertEquals(32, request.getPreauthSalt().length);
        assertTrue(request.getDialects().length > 0);
        assertEquals(2, request.getNegotiateContexts().length);
    }

        return this.negotiateContexts;
    }

    /**
     * Gets the pre-authentication integrity salt for SMB 3.1.1.
     *
     * @return the preauthSalt
     */
    public byte[] getPreauthSalt() {
        return this.preauthSalt;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2Request#createResponse(jcifs.CIFSContext,