this.key = key;
        this.configuration = configuration;
    }

    /**
     * Returns ClassLoader used to load extension classes.
     */
    public ClassRealm getClassRealm() {
        return realm;
    }

    /**
     * Returns artifacts exported by the extension, identified by groupId:artifactId string key.
     */
    public Set<String> getExportedArtifacts() {
        return artifacts;
    }

        GradleDocumentationExtension extension = project.getExtensions().getByType(GradleDocumentationExtension.class);
        generateDefaultImports(project, tasks, extension);
        generateUserManual(project, tasks, layout, extension);

        checkXrefLinksInUserManualAreValid(layout, tasks, extension);
        checkMultiLangSnippetsAreValid(layout, tasks, extension);

            context.logger.warn(
                    "Order of core extensions precedence is project > user > installation. Selected extensions are:");
            for (CoreExtension extension : selectedExtensions.values()) {
                context.logger.warn(
                        "* " + extension.getId() + " configured in " + formatLocation(extension.getLocation("")));
            }
        }

            task.getBaseCssFile().convention(extension.getReleaseNotes().getBaseCssFile());
            task.getReleaseNotesCssFile().convention(extension.getReleaseNotes().getReleaseNotesCssFile());
            task.getReleaseNotesJavascriptFile().convention(extension.getReleaseNotes().getReleaseNotesJsFile());
            task.getJquery().from(extension.getReleaseNotes().getJquery());

  <name>Maven Integration Test :: MNG-3899</name>
  <description>
    Test that build extensions are properly merged during inheritance.
  </description>

  <build>
    <extensions>
      <extension>
        <groupId>org.apache.maven.its.mng3899</groupId>
        <artifactId>a</artifactId>
        <version>0.1</version>
      </extension>
      <extension>
        <groupId>org.apache.maven.its.mng3899</groupId>

            }
            classExtensionDoc.getMixinClasses().add(model.getClassDoc(mixin.getMixinClass()));
        }
        for (ExtensionMetaData extension : classDoc.getExtensionMetaData().getExtensionClasses()) {
            String pluginId = extension.getPluginId();
            ClassExtensionDoc classExtensionDoc = plugins.get(pluginId);
            if (classExtensionDoc == null) {

              ),
            issuerUniqueID = null,
            subjectUniqueID = null,
            extensions =
              listOf(
                Extension(
                  id = keyUsage,
                  critical = true,
                  value = "03020106".decodeHex(),
                ),
                Extension(
                  id = BASIC_CONSTRAINTS,
                  critical = true,
                  value =

        Objects.requireNonNull(extensionRealm, "extensionRealm cannot be null");

        if (cache.containsKey(key)) {
            throw new IllegalStateException("Duplicate extension realm for extension " + key);
        }

        CacheRecord record = new CacheRecord(extensionRealm, extensionDescriptor, artifacts);

        cache.put(key, record);

        return record;
    }

      return Validity(
        notBefore = notBefore,
        notAfter = notAfter,
      )
    }

    private fun extensions(): MutableList<Extension> {
      val result = mutableListOf<Extension>()

      if (maxIntermediateCas != -1) {
        result +=
          Extension(
            id = BASIC_CONSTRAINTS,
            critical = true,
            value =
              BasicConstraints(

      )

  /**
   * ```
   * Extension ::= SEQUENCE  {
   *   extnID      OBJECT IDENTIFIER,
   *   critical    BOOLEAN DEFAULT FALSE,
   *   extnValue   OCTET STRING
   *     -- contains the DER encoding of an ASN.1 value
   *     -- corresponding to the extension type identified
   *     -- by extnID
   * }
   * ```
   */
  internal val extension: BasicDerAdapter<Extension> =
    Adapters.sequence(