this.cachedSubject = s;
            return this.cachedSubject;
        } catch (LoginException e) {
            log.error("Failed to create login context", e);
            // Cache null to ensure consistent behavior across calls
            this.cachedSubject = null;
            return null;
        }
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SmbRenewableCredentials#renew()

            assertNotNull(request);
            assertEquals(method, request.method());
        }
    }

    @Test
    public void test_FactoryMethodsConsistency() {
        // ## Test that factory methods are consistent with constructor ##

        // ## Act ##
        final String url = "http://example.com";
        final CurlRequest getViaFactory = Curl.get(url);

            int expectedAlignedSize = (expectedSize + 7) & ~7;

            assertEquals(expectedAlignedSize, echoRequest.size());
        }

        @Test
        @DisplayName("Size should be consistent across multiple calls")
        void testSizeConsistency() {
            int size1 = echoRequest.size();
            int size2 = echoRequest.size();

            assertEquals(size1, size2);
        }

        @Test
        @DisplayName("Should always force unicode")
        void testIsForceUnicode() {
            assertTrue(response.isForceUnicode());
        }

        @Test
        @DisplayName("Should consistently return true for unicode")
        void testIsForceUnicodeMultipleCalls() {
            for (int i = 0; i < 5; i++) {
                assertTrue(response.isForceUnicode());
            }
        }
    }

      the Work or Derivative Works thereof, You may choose to offer,
      and charge a fee for, acceptance of support, warranty, indemnity,
      or other liability obligations and/or rights consistent with this
      License. However, in accepting such obligations, You may act only
      on Your own behalf and on Your sole responsibility, not on behalf
      of any other Contributor, and only if You agree to indemnify,

      the Work or Derivative Works thereof, You may choose to offer,
      and charge a fee for, acceptance of support, warranty, indemnity,
      or other liability obligations and/or rights consistent with this
      License. However, in accepting such obligations, You may act only
      on Your own behalf and on Your sole responsibility, not on behalf
      of any other Contributor, and only if You agree to indemnify,

        /*
         * The NodeStatusResponse.readNodeNameArray method may also set this
         * information. These two places where node status data is populated should
         * be consistent. Be carefull!
         */
        this.hostName = hostName;
        this.address = address;
        this.groupName = groupName;
        this.nodeType = nodeType;
        this.isBeingDeleted = isBeingDeleted;

            assertEquals(200L, SMBUtil.readInt8(smallBuffer, 8));
            assertEquals(1, SMBUtil.readInt4(smallBuffer, 16));
        }

        @ParameterizedTest
        @DisplayName("Should encode consistently with various flag values")
        @ValueSource(ints = { 0, 1, 2, 4, 16, 0xFF, 0xFFFF, 0xFFFFFF, 0x7FFFFFFF, -1 })
        void testEncodingWithVariousFlags(int flags) {
            lock = new Smb2Lock(1024L, 2048L, flags);

        // Act
        byte[] viaHash = NtlmUtil.nTOWFv2(domain, user, NtlmUtil.getNTHash(password));
        byte[] viaPassword = NtlmUtil.nTOWFv2(domain, user, password);

        // Assert: overloads consistent
        assertArrayEquals(viaHash, viaPassword, "Both overloads must compute same NTLMv2 key");

        // Changing domain should change the key (domain is part of MAC input)

            for (Thread t : threads) {
                t.join();
            }

            // All results should be consistent
            boolean firstResult = results[0];
            for (boolean result : results) {
                assertEquals(firstResult, result, "All thread results should be consistent");
            }
        }

        @Test
        @DisplayName("Should handle concurrent verify operations efficiently")