assertTrue(SessionSetupHandler.class.isAssignableFrom(impl.getClass()), "Type should be assignable");
    }

    @Test
    @DisplayName("Edge: null is not an instance of the interface")
    void testNullIsNotInstance() {
        // Assert
        assertFalse(SessionSetupHandler.class.isInstance(null));
    }

    @Test

        final Type t3 = m3.getGenericReturnType();
        assertThat(GenericsUtil.isTypeOf(t3, Map.class), is(true));
        assertThat(WildcardType.class.isInstance(GenericsUtil.getKeyTypeOfMap(t3)), is(true));
        assertThat(WildcardType.class.isInstance(GenericsUtil.getValueTypeOfMap(t3)), is(true));
    }

    /**
     * @throws Exception
     */
    public void testGetTypeVariableMap() throws Exception {

     */
    public OptionalEntity<StopwordsFile> getStopwordsFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId)
                .filter(StopwordsFile.class::isInstance)
                .map(file -> OptionalEntity.of((StopwordsFile) file))
                .orElse(OptionalEntity.empty());
    }

    /**
     * Retrieves a specific stopword item by its ID.
     *

     */
    public OptionalEntity<SynonymFile> getSynonymFile(final String dictId) {
        return dictionaryManager.getDictionaryFile(dictId)
                .filter(SynonymFile.class::isInstance)
                .map(file -> OptionalEntity.of((SynonymFile) file))
                .orElse(OptionalEntity.empty());
    }

    /**
     * Retrieves a specific synonym item by its ID.
     *

    public SimpleLookup(List<Object> objects) {
        this.objects = objects;
    }

    @Override
    public <T> T lookup(Class<T> type) {
        return objects.stream()
                .filter(type::isInstance)
                .map(type::cast)
                .findAny()
                .orElseThrow(() -> new LookupException("No service of type " + type));
    }

    @Override

   */
  fun <T : ConnectionEvent> removeUpToEvent(eventClass: Class<T>): T {
    val fullEventSequence = eventSequence.toList()
    try {
      while (true) {
        val event = takeEvent()
        if (eventClass.isInstance(event)) {
          return eventClass.cast(event)
        }
      }
    } catch (e: NoSuchElementException) {
      throw AssertionError("full event sequence: $fullEventSequence", e)
    }
  }

  /**

  private val paramClass: Class<*>,
) : AndroidSocketAdapter(sslSocketClass) {
  override fun matchesSocketFactory(sslSocketFactory: SSLSocketFactory): Boolean = sslSocketFactoryClass.isInstance(sslSocketFactory)

  override fun trustManager(sslSocketFactory: SSLSocketFactory): X509TrustManager? {
    val context: Any? =
      readFieldOrNull(
        sslSocketFactory,
        paramClass,

@GwtCompatible
final class Platform {
  static boolean isInstanceOfThrowableClass(
      @Nullable Throwable t, Class<? extends Throwable> expectedClass) {
    return expectedClass.isInstance(t);
  }

  static void restoreInterruptIfIsInterruptedException(Throwable t) {
    checkNotNull(t); // to satisfy NullPointerTester
    if (t instanceof InterruptedException) {
      currentThread().interrupt();

   *
   * <p><b>Discouraged:</b> Prefer using {@code clazz::isInstance} or {@code x -> x instanceof
   * Clazz}, but note that lambdas do not have human-readable {@link #toString()} representations
   * and are not serializable.
   */
  @GwtIncompatible // Class.isInstance
  public static <T extends @Nullable Object> Predicate<T> instanceOf(Class<?> clazz) {

  }

  fun assertFailure(vararg allowedExceptionTypes: Class<*>) =
    apply {
      var found = false
      for (expectedClass in allowedExceptionTypes) {
        if (expectedClass.isInstance(failure)) {
          found = true
          break
        }
      }
      assertThat(
        found,
        "Expected exception type among ${allowedExceptionTypes.contentToString()}, got $failure",