return defaultCreds;
        }

        @Override
        public boolean close() throws CIFSException {
            closeCalled = true;
            // Call super.close() to ensure the shutdown hook is removed
            return super.close();
        }

        public boolean isCloseCalled() {
            return closeCalled;
        }

        @Override

    @EnumSource(RequestParam.class)
    @DisplayName("send handles each RequestParam enum constant")
    void send_eachRequestParam_isAccepted(RequestParam param) throws Exception {
        // Arrange: stub per-call return to ensure interaction with the exact enum
        when(tree.send(eq(request), eq(param))).thenReturn(response);

        // Act
        CommonServerMessageBlockResponse out = tree.send(request, param);

        // Assert

    public void setUp() throws Exception {
        super.setUp();

        // Create a temporary test file
        testFile = File.createTempFile("test_mapping", ".txt");
        testFile.deleteOnExit();
        // Ensure the test file is initially empty
        try (java.io.FileWriter fw = new java.io.FileWriter(testFile)) {
            fw.write("");
        }

        // Create a temporary project.properties file for SystemHelper

  public void putAll(Table<? extends R, ? extends C, ? extends @Nullable V> table) {
    super.putAll(table);
  }

  /**
   * Not supported. Use {@link #erase} instead.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Use {@link #erase}
   */
  @DoNotCall("Always throws UnsupportedOperationException")
  @CanIgnoreReturnValue
  @Override
  @Deprecated

    // explicitly remove the existing value
    cache.asMap().computeIfPresent(1, (key, value) -> null);
    assertThat(notifications).hasSize(1);
    CacheTesting.checkEmpty(cache);

    // ensure no zombie entry remains
    cache.asMap().computeIfPresent(1, (key, value) -> null);
    assertThat(notifications).hasSize(1);
    CacheTesting.checkEmpty(cache);
  }

  public void testUpdates() {

### Contributing

We welcome contributions! Please:
1. Fork the repository
2. Create a feature branch
3. Make your changes with appropriate tests
4. Run `mvn clean test` to ensure all tests pass
5. Submit a pull request

### License

        assertEquals(expected, result, "Filter should evaluate .txt suffix correctly");
        verifyNoInteractions(mockDir);
    }

    /**
     * Invalid/null inputs: ensure filters can handle null name and dir.
     */
    @ParameterizedTest
    @DisplayName("null and empty names are handled explicitly")
    @NullAndEmptySource
    @ValueSource(strings = { " \t\n" })

       * cycle_suppress_list.txt.
       */
      private final AbstractService service;

      /**
       * This lock is used to ensure safe and correct cancellation, it ensures that a new task is
       * not scheduled while a cancel is ongoing. Also it protects the currentFuture variable to
       * ensure that it is assigned atomically with being scheduled.
       */
      private final ReentrantLock lock = new ReentrantLock();

    withContext(Dispatchers.IO) {
      fileSystem.write(outputFile) {
        importResults.writeOut(this)
      }
    }

  /**
   * These assertions ensure the [PublicSuffixDatabase] remains correct. The specification is
   * very flexible regarding wildcard rules, but this flexibility is not something currently used

        assertEquals("true", returned.get("useKeyTab"));
        assertEquals("true", returned.get("storeKey"));
        assertEquals("******@****.***", returned.get("principal"));
        // Ensure no unexpected extra options
        assertEquals(3, returned.size(), "Only provided options are expected");
    }

    @Test