assertNotNull(resetMethod);
        }
    }

    /**
     * Test that getPreauthIntegrityHash returns a defensive copy
     */
    @Test
    @DisplayName("getPreauthIntegrityHash should return defensive copy")
    void testGetPreauthHashDefensiveCopy() throws Exception {
        byte[] hash = transport.getPreauthIntegrityHash();
        assertNotNull(hash);

        // Modify returned hash

        long sessId = 0;

        boolean preauthIntegrity = negoResp.getSelectedDialect().atLeast(DialectVersion.SMB311);
        this.preauthIntegrityHash = preauthIntegrity ? trans.getPreauthIntegrityHash() : null;

        if (this.preauthIntegrityHash != null && log.isDebugEnabled()) {
            log.debug("Initial session preauth hash " + Hexdump.toHexString(this.preauthIntegrityHash));
        }

            }

            if (log.isDebugEnabled()) {
                log.debug("Got referral " + cur);
            }
            return cur;
        }
    }

    byte[] getPreauthIntegrityHash() {
        synchronized (this.preauthHashLock) {
            return this.preauthIntegrityHash != null ? this.preauthIntegrityHash.clone() : null;
        }
    }