* @return The transformed ResultData.
     */
    @Override
    public ResultData transform(final ResponseData responseData) {
        if (responseData == null || !responseData.hasResponseBody()) {
            throw new CrawlingAccessException("No response body.");
        }

        final ResultData resultData = new ResultData();
        resultData.setTransformerName(getName());

     * @throws UnsupportedOperationException always thrown as this method is not supported
     */
    @Override
    public boolean checkUserLoginable(final LoginCredential credential) {
        throw new UnsupportedOperationException("checkUserLoginable is not supported.");
    }

    /**
     * Checks the credential using the provided credential checker.
     * This method is not supported in the Fess implementation.

    }

    // Test insert with no chains
    public void test_insert_noChains() {
        User user = createTestUser("testuser");
        authenticationManager.insert(user);
        // Should not throw exception even with no chains
    }

    // Test insert with single chain
    public void test_insert_singleChain() {
        User user = createTestUser("testuser");

            fail("Should throw ResourceNotFoundRuntimeException for non-existent file");
        } catch (org.codelibs.core.exception.ResourceNotFoundRuntimeException e) {
            // Expected behavior - method throws exception for non-existent files
            assertTrue(e.getMessage().contains("nonexistent.conf"));
        }

        // Test with multiple names - should also throw exception for non-existent files
        try {

        // results in an IOException, as no default handler should be found.
        assertThrows(IOException.class, () -> {
            handler.openConnection(new URL("unknownprotocol://somehost/path"));
        }, "Should throw IOException for an unknown protocol.");
    }

    @Test
    void testSetURLStreamHandlerFactory_SuccessFirstTime() {
        // This test verifies that a URLStreamHandlerFactory can be successfully set.

        MavenStaxWriter writer = new MavenStaxWriter();
        try {
            writer.write(sWriter, model.getDelegate());
        } catch (IOException | XMLStreamException e) {
            throw new ModelInterpolationException("Cannot serialize project model for interpolation.", e);
        }

        String serializedModel = sWriter.toString();

              @Override
              public Collection<String> create(String[] elements) {
                // TODO: MinimalCollection should perhaps throw
                for (Object element : elements) {
                  if (element == null) {
                    throw new NullPointerException();
                  }
                }
                return MinimalCollection.of(elements);
              }
            })

  }

  private void assertSetCountNegativeOldCount() {
    try {
      getMultiset().setCount(e3(), -1, 1);
      fail("calling setCount() with a negative oldCount should throw IllegalArgumentException");
    } catch (IllegalArgumentException expected) {
    }
  }

  // Negative oldCount.

  @CollectionFeature.Require(SUPPORTS_ADD)

    for (String propertyName : new String[] {"value", "absent"}) {
      Method method = null;
      try {
        method = annotationClass.getMethod(propertyName);
      } catch (NoSuchMethodException e) {
        throw new AssertionError("Annotation is missing required method", e);
      }
      Class<?> returnType = method.getReturnType();
      assertTrue(

        }
        return false;
    }

    @Override
    public E next() {
        if (!hasNext()) {
            throw new NoSuchElementException();
        }
        return iterators[index].next();
    }

    @Override
    public void remove() {
        throw new ClUnsupportedOperationException("remove");
    }