private static ClassOwnership detectJvmBehavior() {
      class LocalClass<T> {}
      Class<?> subclass = new LocalClass<String>() {}.getClass();
      // requireNonNull is safe because we're examining a type that's known to have a superclass.
      ParameterizedType parameterizedType =
          requireNonNull((ParameterizedType) subclass.getGenericSuperclass());
      for (ClassOwnership behavior : ClassOwnership.values()) {

 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p>This class does not implement {@link java.util.RandomAccess}. If the delegate supports random
 * access, the {@code ForwardingList} subclass should implement the {@code RandomAccess} interface.
 *
 * <p><b>Warning:</b> The methods of {@code ForwardingList} forward <b>indiscriminately</b> to the

 * The performance of these calls on the underlying network. If the network’s performance isn’t sufficient, you need to either improve the network or use less of it.

### EventListener

   * This is useful if the function instance already exists, or so that you can supply a lambda
   * expressions. If those circumstances don't apply, you probably don't need to use this; subclass
   * {@code TreeTraverser} and implement its {@link #children} method directly.
   *
   * @since 20.0
   * @deprecated Use {@link com.google.common.graph.Traverser#forTree} instead. If you are using a

        assertTrue(exception.getStackTrace().length > 0);
        assertNull(exception.getCause());
    }

    public void test_inheritance() {
        // Test that ResultOffsetExceededException is a subclass of FessSystemException
        ResultOffsetExceededException exception = new ResultOffsetExceededException("Test message");

        assertTrue(exception instanceof FessSystemException);

import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.smb1.Config;

/**
 * Tests for {@link NtlmMessage}. Since {@code NtlmMessage} is abstract we
 * create a lightweight concrete subclass only to exercise the inherited
 * behaviour. The tests cover flag manipulation, byte‑buffer operations and
 * static helpers. Edge cases such as null or short arrays and negative

        // to create the stream handler for the connection.
        URLStreamHandlerFactory mockFactory = mock(URLStreamHandlerFactory.class);

        // Create a concrete URLStreamHandler subclass instead of mocking
        URLStreamHandler mockStreamHandler = new URLStreamHandler() {
            @Override
            protected URLConnection openConnection(URL u) throws IOException {

      }

      @Override
      public boolean contains(@Nullable Object key) {
        return containsKey(key);
      }
    };
  }

  // Internal methods (package-visible, but treat as only subclass-visible)

  @Nullable V getIfCached(@Nullable Object key) {
    Entry<K, V> entry = cacheEntry; // store local reference for thread-safety

 * thought of as overkill; however, it's difficult to determine which proper subset of this massive
 * set would be sufficient to expose any possible bug. Brute force is simpler.
 *
 * <p>To use this class the concrete subclass must implement the {@link
 * IteratorTester#newTargetIterator()} method. This is because it's impossible to test an Iterator
 * without changing its state, so the tester needs a steady supply of fresh Iterators.
 *

    /*
     * Yes, we sometimes set nextInKeyBucket to null, even for this "non-terminal" entry. We don't
     * do that with a plain NonTerminalImmutableMapEntry, but we do it with the BiMap-specific
     * subclass below. That's because the Entry might be non-terminal in the key bucket but terminal
     * in the value bucket (or vice versa).
     */
    private final transient @Nullable ImmutableMapEntry<K, V> nextInKeyBucket;