assertEquals("Malformed kerberos ticket", exception.getMessage(), "PAC exception should indicate malformed ticket.");
        } else if (exception instanceof NullPointerException) {
            // Empty input causes null ASN1 object, which is expected behavior
            assertTrue(exception.getMessage() == null || exception.getMessage().contains("Cannot invoke \"Object.getClass()\""),

        // Act + Assert
        SmbException ex = assertThrows(SmbException.class, () -> tree.connectLogon(context));
        assertEquals("login failed", ex.getMessage());
        verify(tree).connectLogon(context);
    }

    @Test
    @DisplayName("send without params returns the stubbed response")
    void send_noParams_returnsResponse() throws Exception {

            assertEquals("transliteratorId must not be null", e.getMessage());
        }
    }

    public void test_invalidTransliteratorId() {
        try {
            new ICUNormalizer("Invalid-Transliterator-ID-12345");
            fail("Expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {
            assertTrue(e.getMessage().contains("Invalid transliterator ID"));
        }
    }

        // Act & Assert: calling release without prior acquire drops usage below zero
        RuntimeException ex = assertThrows(RuntimeException.class, trace::release);
        assertTrue(ex.getMessage() != null && ex.getMessage().contains("Usage count dropped below zero"));
    }

    @Test
    @DisplayName("getTreeId(): no tree returns -1")
    void getTreeId_noTree_returnsMinusOne() {
        // Arrange

                assertTrue(ex.getMessage().contains("directory must end with '/'"),
                        "Expected trailing slash message, was: " + ex.getMessage());
            } else {
                assertTrue(ex.getMessage().contains("invalid") || ex.getMessage().contains("invalid:"),
                        "Expected invalid list operation message, was: " + ex.getMessage());
            }
        }
    }

    /**
     * Constructs a new CurlException with the specified detail message and cause.
     *
     * @param message the detail message (which is saved for later retrieval by the {@link #getMessage()} method).
     * @param cause the cause (which is saved for later retrieval by the {@link #getCause()} method).
     *              (A {@code null} value is permitted, and indicates that the cause is nonexistent or unknown.)

        SmbUnsupportedOperationException ex =
                assertThrows(SmbUnsupportedOperationException.class, () -> auth.createContext(tc, null, "SERVER", new byte[0], false));
        assertTrue(ex.getMessage().contains("Cannot use netbios/short names"));
    }

    @Test
    @DisplayName("createContext: no Kerberos in initial token and no fallback -> throws")

                        "Should throw SMBProtocolDecodingException for invalid structure size");

        assertEquals("Expected structureSize = 2", exception.getMessage());
    }

    @Test
    @DisplayName("Test readBytesWireFormat with zero structure size throws exception")
    void testReadBytesWireFormatZeroStructureSize() {
        byte[] buffer = new byte[1024];

                log.debug("Error closing connection: {}", e.getMessage());
            }
        });
        connections.clear();

        nonPooledConnections.forEach(conn -> {
            try {
                conn.disconnect(true, true);
            } catch (Exception e) {
                log.debug("Error closing non-pooled connection: {}", e.getMessage());
            }
        });

        });
        assertTrue(e.getMessage().contains("PAC"));
    }

    // Test exception for short PAC
    @Test
    void testConstructorShortPac() {
        byte[] shortToken = new byte[7];
        PACDecodingException e = assertThrows(PACDecodingException.class, () -> {
            new KerberosPacAuthData(shortToken, keys);
        });
        assertTrue(e.getMessage().contains("PAC"));
    }