// Check build/plugins
        Element buildElement = root.child(BUILD).orElse(null);
        if (buildElement != null) {
            Element pluginsElement = buildElement.child(PLUGINS).orElse(null);
            if (pluginsElement != null) {
                hasUpgrades |= upgradePluginsInSection(

     * @param element Configuration element name to unmarshal or {@code null} to unmarshal entire configuration.
     * @return This request for chaining, never {@code null}.
     */
    BeanConfigurationRequest setConfiguration(Object configuration, String element);

    /**
     * Returns configuration element name or {@code null}.
     *
     * @see #setConfiguration(Object, String)

          "TLS_NULL_WITH_NULL_NULL", "SSL_NULL_WITH_NULL_NULL" -> {
            throw IOException("cipherSuite == $cipherSuiteString")
          }

          else -> CipherSuite.forJavaName(cipherSuiteString)
        }

      val tlsVersionString = checkNotNull(protocol) { "tlsVersion == null" }

    default void log(@Nonnull Level level, @Nonnull String message) {
        log(level, message, null);
    }

    /**
     * Logs a message at the specified level with an associated exception.
     *
     * @param level the severity level of the message
     * @param message the message to be logged
     * @param error the associated exception, or null if not applicable
     */

            writer.accept("\t\tGoal:                   " + mojoExecId);
        }
        if (mojoExecution.getConfiguration() != null) {
            writer.accept("\t\tConfiguration:          " + mojoExecution.getConfiguration());
        }
        if (mojoExecution.getMojoDescriptor().getDependencyCollectionRequired() != null) {
            writer.accept("\t\tDependencies (collect): "

        localRepositoryPath = (localRepository != null) ? new File(localRepository) : null;

        return this;
    }

    @Override
    public MavenExecutionRequest setSystemProperties(Properties properties) {
        if (properties != null) {
            this.systemProperties = SystemProperties.copyProperties(properties);
        } else {
            this.systemProperties = null;
        }

        return this;

                                if (resetArtifact.getVersion() == null && resetArtifact.getVersionRange() != null) {

                                    // go find the version. This is a total hack. See previous comment.
                                    List<ArtifactVersion> versions = resetArtifact.getAvailableVersions();
                                    if (versions == null) {
                                        try {

        artifacts.add(new DefaultArtifact("g", "a2", "v", "compile", "jar", "", null));
        artifacts.add(new DefaultArtifact("g", "a3", "v", "compile", "jar", "", null));
        artifacts.add(new DefaultArtifact("g", "a4", "v", "compile", "jar", "", null));

        cache.put(project1, new SetWithResolutionResult(null, artifacts));

        assertArrayEquals(

    node.thread = null; // mark as 'deleted'
    restart:
    while (true) {
      Waiter pred = null;
      Waiter curr = waitersField;
      if (curr == Waiter.TOMBSTONE) {
        return; // give up if someone is calling complete
      }
      Waiter succ;
      while (curr != null) {
        succ = curr.next;
        if (curr.thread != null) { // we aren't unlinking this node, update pred.

    } else if (previousValue instanceof PredAndSucc) {
      adjacentNodeValues.put((N) node, PRED);
      removedValue = ((PredAndSucc) previousValue).successorValue;
    } else { // successor
      adjacentNodeValues.remove(node);
      removedValue = previousValue;
    }

    if (removedValue != null) {
      checkNonNegative(--successorCount);

      if (orderedNodeConnections != null) {