logger.warn("Failed to install {}", artifact.getFileName(), e);
            }
            for (final Artifact a : artifacts) {
                if (a.getName().equals(artifact.getName()) && !a.getVersion().equals(artifact.getVersion())) {
                    try {
                        pluginHelper.deleteInstalledArtifact(a);
                    } catch (final Exception e) {

        if (field == null) {
            return null;
        }
        if (clazz.equals(Integer.class)) {
            final Number value = (Number) field;
            return (T) Integer.valueOf(value.intValue());
        }
        if (clazz.equals(Long.class)) {
            final Number value = (Number) field;
            return (T) Long.valueOf(value.longValue());
        }

        if (STRATEGY_PARENT_FIRST.equals(classLoadingStrategy)) {
            realm.importFrom(parentRealm, "");
        } else if (STRATEGY_PLUGIN.equals(classLoadingStrategy)) {
            coreExports.getExportedPackages().forEach((p, cl) -> realm.importFrom(cl, p));
            providedArtifacts = coreExports.getExportedArtifacts();
        } else if (STRATEGY_SELF_FIRST.equals(classLoadingStrategy)) {

    int lastEntryIndex = -1;
    do {
      int entryIndex = next - 1;
      int entry = entries[entryIndex];
      if (getHashPrefix(entry, mask) == hashPrefix
          && Objects.equals(key, keys[entryIndex])
          && (values == null || Objects.equals(value, values[entryIndex]))) {
        int newNext = getNext(entry, mask);
        if (lastEntryIndex == -1) {
          // we need to update the root link from table[]

            for (int i = 0; i < buildChildren.size(); i++) {
                Element child = buildChildren.get(i);
                if ("pluginManagement".equals(child.name())) {
                    pluginManagementIndex = i;
                } else if ("plugins".equals(child.name())) {
                    pluginsIndex = i;
                }
            }

            assertTrue(pluginsIndex >= 0, "plugins should be present");

            if (!matcher.matches()) {
                return s;
            }
            final int v = Integer.parseInt(matcher.group(1));
            if ("-".equals(matcher.group(2))) {
                if (version >= v) {
                    return matcher.group(3);
                }
            } else if (v == version) {
                return matcher.group(3);
            }

    }

    private MavenProject findChildProject(List<ProjectBuildingResult> results) {
        for (ProjectBuildingResult result : results) {
            if (result.getPomFile().getParentFile().getName().equals("child")) {
                return result.getProject();
            }
        }
        return null;
    }

    private void assertResultShowNoError(List<ProjectBuildingResult> results) {

    }

    return true
  }

  override fun equals(other: Any?): Boolean {
    if (other !is ConnectionSpec) return false
    if (other === this) return true

    if (this.isTls != other.isTls) return false

    if (isTls) {
      if (!Arrays.equals(this.cipherSuitesAsString, other.cipherSuitesAsString)) return false
      if (!Arrays.equals(this.tlsVersionsAsString, other.tlsVersionsAsString)) return false

                if (!MediaType.OCTET_STREAM.equals(mediaType)) {
                    return mediaType.getType() + "/" + mediaType.getSubtype();
                }
            }

            final MediaType mediaType = mimeTypes.detect(is == null || is.markSupported() ? is : new BufferedInputStream(is), metadata);
            if (useFilenameOnOctetStream && MediaType.OCTET_STREAM.equals(mediaType)) {

        assertObjectNotNull("ck", ck);
        if (ck.equals(ConditionKey.CK_GREATER_THAN)) {
            builder.gt(value);
        } else if (ck.equals(ConditionKey.CK_GREATER_EQUAL)) {
            builder.gte(value);
        } else if (ck.equals(ConditionKey.CK_LESS_THAN)) {
            builder.lt(value);
        } else if (ck.equals(ConditionKey.CK_LESS_EQUAL)) {
            builder.lte(value);
        }