return this.credentials.createContext(getContext(), tdomain, host, negoResp.getSecurityBlob(), doSigning);
        }

        try {
            final String hostName = host;
            return Subject.doAs(s, (PrivilegedExceptionAction<SSPContext>) () -> getCredentials().createContext(getContext(), tdomain,
                    hostName, negoResp.getSecurityBlob(), doSigning));
        } catch (PrivilegedActionException e) {

        return this.commonCapabilities;
    }

    /**
     * Gets the initial security blob for authentication negotiation.
     *
     * @return initial security blob
     */
    public byte[] getSecurityBlob() {
        return this.securityBuffer;
    }

    /**
     * Gets the maximum transaction size supported by the server.
     *
     * @return the maxTransactSize
     */

        // Given
        byte[] blob = "SecurityBlob".getBytes();
        setPrivateField(response, "securityBuffer", blob);

        // When
        byte[] result = response.getSecurityBlob();

        // Then
        assertArrayEquals(blob, result);
    }

    @Test
    @DisplayName("Should return max transact size")
    void testGetMaxTransactSize() throws Exception {