// 1. GIVEN
        byte[] emptyToken = new byte[0];
        Map<Integer, KerberosKey> keys = new HashMap<>();

        // 2. WHEN & 3. THEN
        // When ASN1InputStream.readObject() returns null due to empty input,
        // ASN1Util.as() throws NullPointerException (not wrapped)
        Exception exception = assertThrows(Exception.class, () -> {
            new KerberosRelevantAuthData(emptyToken, keys);

            public void sendRedirect(String location) {
            }

            @Override
            public void setDateHeader(String name, long date) {
            }

            @Override
            public void addDateHeader(String name, long date) {
            }

            @Override
            public void setHeader(String name, String value) {
                List<String> values = new ArrayList<>();

        void testGetHandleNcacnNpProtocol() {
            // When/Then: Should attempt to create DcerpcPipeHandle (may fail due to SMB URL creation)
            // This tests the protocol recognition logic, actual creation may fail due to missing SMB support
            assertThrows(Exception.class, () -> DcerpcHandle.getHandle("ncacn_np:\\\\server[endpoint=\\pipe\\srvsvc]", mockContext));
        }

        REGISTERED,
        /** Unregistration is in progress */
        UNREGISTERING,
        /** Registration has failed */
        FAILED,
        /** Registration has expired due to timeout */
        EXPIRED
    }

    /**
     * Creates a new witness registration.
     *
     * @param shareName the SMB share name to monitor
     * @param serverAddress the server IP address

   * process it; all should produce the same answer, the only difference should be the number of
   * process()/processRemaining() invocations, due to alignment.
   */
  @AndroidIncompatible // slow. TODO(cpovirk): Maybe just reduce iterations under Android.
  public void testExhaustive() throws Exception {

### Docs for tests

Most of the tests actually run against the example source files in the documentation.

This helps to make sure that:

* The documentation is up-to-date.
* The documentation examples can be run as is.
* Most of the features are covered by the documentation, ensured by test coverage.

#### Apps and docs at the same time

If you run the examples with, e.g.:

* Stellen Sie zunächst sicher, dass Sie **das Problem verstehen**, welches der Pull Request zu lösen versucht. Möglicherweise gibt es eine längere Diskussion dazu in einer GitHub-Diskussion oder einem GitHub-Issue.

* Es besteht auch eine gute Chance, dass der Pull Request nicht wirklich benötigt wird, da das Problem auf **andere Weise** gelöst werden kann. Dann können Sie das vorschlagen oder danach fragen.

### Der Stil ist nicht so wichtig

    connectTimeout: Int,
  ) {
    try {
      socket.connect(address, connectTimeout)
    } catch (e: ClassCastException) {
      // On android 8.0, socket.connect throws a ClassCastException due to a bug
      // see https://issuetracker.google.com/issues/63649622
      if (Build.VERSION.SDK_INT == 26) {
        throw IOException("Exception in connect", e)
      } else {
        throw e
      }
    }
  }

            Duration elapsed = clock.elapsedTime();
            Duration calculated = Duration.between(clock.startInstant(), now);

            // Allow for small timing differences (1ms) due to execution time between measurements
            assertTrue(
                    Math.abs(elapsed.toMillis() - calculated.toMillis()) <= 1,

      or a Contribution incorporated within the Work constitutes direct
      or contributory patent infringement, then any patent licenses
      granted to You under this License for that Work shall terminate
      as of the date such litigation is filed.

   4. Redistribution. You may reproduce and distribute copies of the
      Work or Derivative Works thereof in any medium, with or without