import java.util.Collection;
import java.util.Map.Entry;
import java.util.Objects;
import java.util.concurrent.atomic.AtomicReference;
import org.jspecify.annotations.Nullable;

/**
 * Utilities for working with {@link Type}.
 *
 * @author Ben Yu
 */
final class Types {

  /** Class#toString without the "class " and "interface " prefixes */
  private static final Joiner COMMA_JOINER = Joiner.on(", ").useForNull("null");

* Start the title with a verb. For example `Add`, `Refactor`, `Fix`, etc. This way the title will say the action that the PR does. Like `Add support for teleporting`, instead of `Teleporting wasn't working, so this PR fixes it`.
* Edit the text of the PR title to start in "imperative", like giving an order. So, instead of `Adding support for teleporting` use `Add support for teleporting`.

server to create representative test cases. Or test that your code survives in
awkward-to-reproduce situations like 500 errors or slow-loading responses.


### Example

Use MockWebServer the same way that you use mocking frameworks like
[Mockito](https://github.com/mockito/mockito):

1. Script the mocks.
2. Run application code.
3. Verify that the expected requests were made.

Here's a complete example:

### Java
```java

        this.streamCloseTimeout = streamCloseTimeout;
    }

    /**
     * Sends a command to the process associated with the given session ID.
     * Uses finer-grained locking to avoid blocking other operations during I/O.
     *
     * @param sessionId unique identifier for the process session
     * @param command the command to send to the process

        assertEquals("Malformed PAC", exception.getMessage());
    }

    @Test
    @DisplayName("Test getters return expected values using mocks")
    void testGetters() throws Exception {
        // Use mocking to test getters without complex PAC data creation
        PacLogonInfo logonInfo = mock(PacLogonInfo.class);

        // Setup mock responses
        when(logonInfo.getUserName()).thenReturn(TEST_USERNAME);

   * All registered subscribers, indexed by event type.
   *
   * <p>The {@link CopyOnWriteArraySet} values make it easy and relatively lightweight to get an
   * immutable snapshot of all current subscribers to an event without any locking.
   */
  private final ConcurrentMap<Class<?>, CopyOnWriteArraySet<Subscriber>> subscribers =
      Maps.newConcurrentMap();

  /** The event bus this registry belongs to. */
  @Weak private final EventBus bus;

            verify(mockSession, times(1)).unwrap(SmbSession.class);
            verify(mockSession, times(1)).close();
        }

        @Test
        @DisplayName("Should support partial mocking scenarios")
        void shouldSupportPartialMockingScenarios() {
            SmbSession mockSession = mock(SmbSession.class);
            Configuration mockConfig = mock(Configuration.class);

 *
 * <ul>
 *   <li>for an unnested {@code lock()} and {@code unlock()}, a cycle detecting lock takes 38ns as
 *       opposed to the 24ns taken by a plain lock.
 *   <li>for nested locking, the cost increases with the depth of the nesting:
 *       <ul>
 *         <li>2 levels: average of 64ns per lock()/unlock()
 *         <li>3 levels: average of 77ns per lock()/unlock()

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;

import jcifs.pac.PACDecodingException;

class KerberosApRequestTest {

    // Helper: build a minimal, valid-looking ASN.1 AP-REQ sequence with tags 0/1/2
    private ASN1Sequence buildMinimalApReqSeq(byte apOptions) {
        ASN1EncodableVector v = new ASN1EncodableVector();
        // pvno [0] INTEGER 5

        // 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 {
                return mock(HttpURLConnection.class);