public void testOf_NullPointerException() {
    try {
      EquivalenceTester.of(null);
      fail("Should fail on null reference");
    } catch (NullPointerException expected) {
    }
  }

  public void testTest_NoData() {
    tester.test();
  }

  public void testTest() {
    Object group1Item1 = new TestObject(1, 1);
    Object group1Item2 = new TestObject(1, 2);
    Object group2Item1 = new TestObject(2, 1);

  public void testOf_NullPointerException() {
    try {
      EquivalenceTester.of(null);
      fail("Should fail on null reference");
    } catch (NullPointerException expected) {
    }
  }

  public void testTest_NoData() {
    tester.test();
  }

  public void testTest() {
    Object group1Item1 = new TestObject(1, 1);
    Object group1Item2 = new TestObject(1, 2);
    Object group2Item1 = new TestObject(2, 1);

  }

  public void testToString() {
    byte[] keyData = "secret key".getBytes(UTF_8);

    assertEquals(
        "Hashing.hmacMd5(Key[algorithm=HmacMD5, format=RAW])", Hashing.hmacMd5(MD5_KEY).toString());
    assertEquals(
        "Hashing.hmacMd5(Key[algorithm=HmacMD5, format=RAW])", Hashing.hmacMd5(keyData).toString());

    assertEquals(

            }
            mojos.remove(Thread.currentThread());
        }

        private OwnerReentrantLock getProjectLock(MavenSession session) {
            SessionData data = session.getSession().getData();
            Map<MavenProject, OwnerReentrantLock> locks = data.computeIfAbsent(PROJECT_LOCKS, ConcurrentHashMap::new);
            return locks.computeIfAbsent(session.getCurrentProject(), p -> new OwnerReentrantLock());

 * abused as a cache (i.e. for storing values that can be re-calculated) to avoid memory exhaustion.
 * <p>
 * <strong>Note:</strong> Actual implementations must be thread-safe.
 *
 * @see Session#getData()
 * @since 4.0.0
 */
@Experimental
@ThreadSafe
@Provider
public interface SessionData {

    /**
     * Associates the specified session data with the given key.
     *

            RepositorySystemSession session, ArtifactDescriptorResult artifactDescriptorResult, Model model)
            throws ArtifactDescriptorException {
        Relocations relocations = (Relocations) session.getData()
                .computeIfAbsent(getClass().getName() + ".relocations", () -> parseRelocations(session));
        if (relocations != null) {
            Artifact original = artifactDescriptorResult.getRequest().getArtifact();

                        continue;
                    }
                    @SuppressWarnings("unchecked")
                    final Map<String, Object> map = (Map<String, Object>) transformer.getData(accessResultData);
                    if (map.isEmpty()) {
                        // no transformer
                        logger.warn("No data: {}", accessResult.getUrl());
                        continue;

    }

    protected PathMappingHelper getPathMappingHelper() {
        return ComponentUtil.getPathMappingHelper();
    }

    @Override
    public Object getData(final AccessResultData<?> accessResultData) {
        final byte[] data = accessResultData.getData();
        if (data != null) {
            try {
                return SerializeUtil.fromBinaryToObject(data);
            } catch (final Exception e) {

     * @return the totalBytesWritten
     */
    public int getMessageLength () {
        return this.messageLength;
    }


    /**
     * @return the totalBytesWritten
     */
    public byte[] getData () {
        return this.data;
    }


    /**
     * {@inheritDoc}
     *
     * @see Decodable#decode(byte[], int, int)
     */
    @Override

  }

  public void testToString() {
    byte[] keyData = "secret key".getBytes(UTF_8);

    assertEquals(
        "Hashing.hmacMd5(Key[algorithm=HmacMD5, format=RAW])", Hashing.hmacMd5(MD5_KEY).toString());
    assertEquals(
        "Hashing.hmacMd5(Key[algorithm=HmacMD5, format=RAW])", Hashing.hmacMd5(keyData).toString());

    assertEquals(