for (Artifact artifact : artifacts) {
            Object key = VersionsMetadata.getKey(artifact);
            if (processedVersions.get(key) == null) {
                VersionsMetadata versionsMetadata = versions.get(key);
                if (versionsMetadata == null) {
                    versionsMetadata = new VersionsMetadata(artifact, timestamp);
                    versions.put(key, versionsMetadata);
                }

## Review Pull Requests

You can help me review pull requests from others.

Again, please try your best to be kind. 🤗

---

Here's what to keep in mind and how to review a pull request:

### Understand the problem

        super( msg );
        this.rootCause = rootCause;
    }

    public Throwable getRootCause() {
        return rootCause;
    }
    public String toString() {
        if( rootCause != null ) {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter( sw );
            rootCause.printStackTrace( pw );
            return super.toString() + "\n" + sw;
        } else {

    assertTrue("An Object should be equal to itself.", collection.equals(collection));
  }

  public void testEquals_null() {
    // noinspection ObjectEqualsNull
    assertFalse("An object should not be equal to null.", collection.equals(null));
  }

  public void testEquals_notACollection() {
    // noinspection EqualsBetweenInconvertibleTypes
    assertFalse(
        "A Collection should never equal an object that is not a Collection.",

          override fun authenticate(
            route: Route?,
            response: Response,
          ): Request? {
            if (response.request.header("Authorization") != null) {
              return null // Give up, we've already attempted to authenticate.
            }

            println("Authenticating for response: $response")
            println("Challenges: ${response.challenges()}")

     * java.util.Map)
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            @SuppressWarnings("resource")
            final VisioTextExtractor visioTextExtractor = new VisioTextExtractor(in);

 *
 */
public final class ResponseDataUtil {

    private ResponseDataUtil() {
    }

    public static File createResponseBodyFile(final ResponseData responseData) {
        File tempFile = null;
        FileOutputStream fos = null;
        try (final InputStream is = responseData.getResponseBody()) {
            tempFile = File.createTempFile("crawler-", ".tmp");
            fos = new FileOutputStream(tempFile);

            final String key = getHostKey(entity);
            Pair<Map<String, String>, List<Pair<Pattern, String>>> pair = relatedContentMap.get(key);
            if (pair == null) {
                pair = new Pair<>(new HashMap<>(), new ArrayList<>());
                relatedContentMap.put(key, pair);
            }
            if (entity.getTerm().startsWith(regexPrefix)) {

        ),
      ),
    ).isEqualTo(null)
  }

  @Test fun inlineDeltaOrNullMultipleMappedToCodePoints() {
    assertThat(
      inlineDeltaOrNull(
        mappingOf(
          sourceCodePoint0 = 1,
          sourceCodePoint1 = 1,
          mappedToCodePoints = listOf(2, 3),
        ),
      ),
    ).isEqualTo(null)
  }

  @Test fun inlineDeltaOrNullMaxCodepointDelta() {

     * started first.
     */
    reference =
        new FinalizableWeakReference<Object>(new Object(), frq) {
          @Override
          public void finalizeReferent() {
            reference = null;
            frq = null;
          }
        };
  }

  public void testDecoupledLoader() {
    FinalizableReferenceQueue.DecoupledLoader decoupledLoader =
        new FinalizableReferenceQueue.DecoupledLoader() {