private FessConfig.SimpleImpl fessConfig;

    @Override
    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);

        // Clear cached components in ComponentUtil using reflection
        try {
            java.lang.reflect.Field systemHelperField = ComponentUtil.class.getDeclaredField("systemHelper");
            systemHelperField.setAccessible(true);
            systemHelperField.set(null, null);

        assertEquals(800, cmd.maxDataCount, "maxDataCount should be 800");
        assertEquals(0, cmd.maxSetupCount, "maxSetupCount should be 0");
        // ensure information level is stored using reflection
        Field informationLevelField = Trans2QueryFSInformation.class.getDeclaredField("informationLevel");
        informationLevelField.setAccessible(true);

    assertThat(expected)
        .hasMessageThat()
        .isEqualTo("end index (0) must not be less than start index (1)");
  }

  @GwtIncompatible // Reflection
  @J2ktIncompatible
  public void testAllOverloads_checkArgument() throws Exception {
    for (ImmutableList<Class<?>> sig : allSignatures(boolean.class)) {
      Method checkArgumentMethod =

    assertThat(expected)
        .hasMessageThat()
        .isEqualTo("end index (0) must not be less than start index (1)");
  }

  @GwtIncompatible // Reflection
  @J2ktIncompatible
  public void testAllOverloads_checkArgument() throws Exception {
    for (ImmutableList<Class<?>> sig : allSignatures(boolean.class)) {
      Method checkArgumentMethod =

   * Returns {@link Method} instances for the read tests that assume multisets support duplicates so
   * that the test of {@code Multisets.forSet()} can suppress them.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static List<Method> getElementSetDuplicateInitializingMethods() {
    return asList(
        getMethod(
            MultisetElementSetTester.class, "testElementSetRemoveDuplicatePropagatesToMultiset"));
  }

   *
   * <p>The {@link Set} returned is a "snapshot" based on the current topology of {@code graph},
   * rather than a live view. In other words, modifications to {@code graph} made after this method
   * returns will not be reflected in the set.
   *
   * @throws IllegalArgumentException if {@code node} is not present in {@code graph}
   * @since 33.1.0 (present with return type {@code Set} since 20.0)
   */

        // Assert
        assertSame(mocked, ex.getCause(), "Mocked cause should be preserved");
        verifyNoInteractions(mocked);
    }

    // Reflection-based check: ensure serialVersionUID remains the declared constant
    @Test
    @DisplayName("serialVersionUID matches declared constant")
    void serialVersionUID_hasExpectedValue() throws Exception {
        // Arrange

        } catch (Exception // sneaky checked exception
            | Error atomicReferenceFieldUpdaterFailure) {
          // Some Android 5.0.x Samsung devices have bugs in JDK reflection APIs that cause
          // getDeclaredField to throw a NoSuchFieldException when the field is definitely there.
          // For these users fallback to a suboptimal implementation, based on synchronized. This

    assertEquals(Integer.MAX_VALUE, ms.tailMultiset("b", CLOSED).size());
    assertEquals(Integer.MAX_VALUE, ms.tailMultiset("a", CLOSED).size());
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  @AndroidIncompatible // Reflection bug, or actual binary compatibility problem?
  public void testElementSetBridgeMethods() {
    for (Method m : TreeMultiset.class.getMethods()) {

  /**
   * Returns {@link Method} instances for the tests that assume multisets support duplicates so that
   * the test of {@code Multisets.forSet()} can suppress them.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static List<Method> getIteratorDuplicateInitializingMethods() {
    return asList(
        getMethod(MultisetIteratorTester.class, "testIteratorKnownOrder"),