assertFalse(future.set(23));
    assertFalse(future.setException(new Exception("bar")));
    assertFalse(future.setFuture(SettableFuture.<Integer>create()));
    // Check that the future has been set properly.
    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
    assertEquals(42, (int) future.get());
  }

  public void testSetException() throws Exception {

There is also an **Advanced User Guide** that you can read later after this **Tutorial - User guide**.

The **Advanced User Guide** builds on this one, uses the same concepts, and teaches you some extra features.

But you should first read the **Tutorial - User Guide** (what you are reading right now).

/**
 * RegexRule is a rule implementation that uses regular expressions to match against the ResponseData.
 * It allows defining multiple regular expressions for different fields of the ResponseData.
 * The rule can be configured to require all regular expressions to match (allRequired = true) or
 * only one of them (allRequired = false). It also supports a default rule that always matches.
 *
 * <p>

  /**
   * Returns the last value corresponding to the specified field parsed as an HTTP date, or null if
   * either the field is absent or cannot be parsed as a date.
   */
  @IgnoreJRERequirement // Only programs that already have Instant will use this.
  fun getInstant(name: String): Instant? = getDate(name)?.toInstant()

  /** Returns the number of field values. */
  @get:JvmName("size")
  val size: Int

      .Builder()
      .scheme(if (sslSocketFactory != null) "https" else "http")
      .host(hostName)
      .port(port)
      .build()
      .resolve(path)!!

  /**
   * Serve requests with HTTPS rather than otherwise.
   */
  public fun useHttps(sslSocketFactory: SSLSocketFactory) {
    this.sslSocketFactory = sslSocketFactory
  }

  /**

    // If add is supported, verify that IMMUTABLE is not reported.
    assertFalse(collection.spliterator().hasCharacteristics(Spliterator.IMMUTABLE));
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testSpliteratorNotImmutable_collectionAllowsRemove() {
    // If remove is supported, verify that IMMUTABLE is not reported.

        // Verify that data was written (should write 22 bytes based on implementation)
        assertEquals(22, result, "writeParameterWordsWireFormat should write 22 bytes");
    }

    @Test
    void testWriteBytesWireFormat() {
        byte[] dst = new byte[1024];
        int result = setupAndX.writeBytesWireFormat(dst, 0);

        // Verify that data was written

 * {@code SmbTransport} collaborator and is used only for
 * demonstration – the real class behaviour is not required for
 * validating constants.
 */
public class SmbConstantsTest {

    /**
     * Verify that the hard‑coded default values are present.
     */
    @Test
    @DisplayName("Default constant values match expectations")
    void defaultValues() {
        assertEquals(445, SmbConstants.DEFAULT_PORT);

                return artifacts;
            }

            @Override
            public boolean equals(Object o) {
                return o instanceof DefaultArtifactInstallerRequest that && Objects.equals(artifacts, that.artifacts);
            }

            @Override
            public int hashCode() {
                return Objects.hashCode(artifacts);
            }

            @Override

        curtainFinallyHook.hook(assistantDirector);

        // Verify that the method completes without errors
        assertTrue(true); // Method completed successfully
    }

    // Test hook method when MultiThreadedHttpConnectionManager class is not available
    public void test_hook_classNotFound() {
        // Create a custom hook that simulates class not found scenario