// ## Arrange ##
        // Write data exceeding threshold to force file creation, then delete the file
        // before close() - close() should handle this gracefully (log warning, not throw)
        ContentOutputStream cos = new ContentOutputStream(5, Curl.tmpDir);
        cos.write(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }); // exceeds threshold
        cos.flush();

            }, "Multiple close() calls should not throw exceptions");

            verify(mockSession, times(2)).close();
        }

        @Test
        @DisplayName("Should handle close with exception gracefully")
        void shouldHandleCloseExceptionGracefully() throws Exception {
            SmbSession mockSession = mock(SmbSession.class);
            Exception testException = new Exception("Test close exception");

        assertEquals(1, chain3.updateCallCount);
    }

    // Test addChain null handling
    @Test
    public void test_addChain_withNull() {
        // ArrayUtils.addAll handles null gracefully by adding it to the array
        authenticationManager.addChain(null);

        // Verify null chain doesn't cause issues during operations
        User user = createTestUser("testuser");
        try {

        Map<String, Object> docMap = new HashMap<>();

        // Note: isTarget requires FessConfig which needs container
        // We can only verify the method handles missing container gracefully
        try {
            generator.isTarget(docMap);
        } catch (IllegalStateException e) {
            // Expected when container is not initialized
            assertTrue(e.getMessage().contains("Not initialized"));

        for (int i = 0; i < 10; i++) {
            assertEquals(4, SMBUtil.readInt2(buffer, i * 10));
        }
    }

    @Test
    @DisplayName("Should handle null configuration gracefully in response creation")
    void testCreateResponseWithNullConfig() {
        // Given
        Configuration mockConfig = mock(Configuration.class);

    Firefox’s ‘copy as cURL’ features.

 *  New: Support [JPMS]. We replaced our `Automatic-Module-Name` metadata with proper
    `module-info.java` files.

 *  Fix: Recover gracefully when worker threads are interrupted. When we introduced fast fallback in
    OkHttp 5.0, we started using background threads while connecting. Sadly that code didn't handle
    interruptions well. This is now fixed.

        };

        try {
            Artifact artifact = new Artifact("fess-theme-test", "1.0.0");
            mockThemeHelper.install(artifact);
            // Some environments may handle invalid zip gracefully
            assertTrue(true);
        } catch (Exception e) {
            // Should throw ThemeException or ZipException

        }
    }

    @Nested
    @DisplayName("Edge Cases and Error Handling")
    class EdgeCasesTests {

        @Test
        @DisplayName("Should handle malformed buffer gracefully")
        void testReadDataWireFormatMalformedBuffer() {
            byte[] buffer = new byte[3]; // Too small for valid DFS referral

            assertThrows(ArrayIndexOutOfBoundsException.class, () -> {

        // Closing should send a single Smb2CloseRequest
        it.close();
        verify(tree).send(argThat((Request<?> r) -> r instanceof Smb2CloseRequest));
    }

    @Test
    @DisplayName("open() gracefully handles NT_STATUS_NO_SUCH_FILE (empty listing)")
    void open_handles_no_such_file_and_yields_empty() throws Exception {
        // Setup required for this test
        when(parent.getLocator()).thenReturn(locator);

        // Then
        assertEquals(0, bytesWritten);
        assertArrayEquals(originalBuffer, buffer); // Buffer should remain unchanged
    }

    @Test
    @DisplayName("Should handle null configuration gracefully")
    void testNullConfiguration() {
        // When - constructor accepts null config without throwing
        Smb2TreeDisconnectResponse responseWithNull = new Smb2TreeDisconnectResponse(null);