private val typeHintStack = mutableListOf<Any?>()

  /**
   * The type hint for the current object. Used to pick adapters based on other fields, such as
   * in extensions which have different types depending on their extension ID.
   */
  var typeHint: Any?
    get() = typeHintStack.lastOrNull()
    set(value) {
      typeHintStack[typeHintStack.size - 1] = value
    }

                }
            }
        }

        private void visit(Extension extension) {
            if (extension != null) {
                String org, val;
                // GroupId
                org = extension.getGroupId();
                val = interpolate(org);
                if (org != val) {
                    extension.setGroupId(val);
                }
                // ArtifactId

import com.google.gson.reflect.TypeToken
import com.google.gson.stream.JsonReader
import gradlebuild.basics.bundleGroovyMajor
import gradlebuild.basics.repoRoot
import gradlebuild.modules.extension.ExternalModulesExtension

val libs = extensions.create<ExternalModulesExtension>("libs", bundleGroovyMajor)

applyAutomaticUpgradeOfCapabilities()
dependencies {
    components {

    newWebSocket(
      Request
        .Builder()
        .url(webServer.url("/"))
        .header("Sec-WebSocket-Extensions", "permessage-deflate")
        .build(),
    )
    clientListener.assertFailure(
      ProtocolException::class.java,
      "Request header not permitted: 'Sec-WebSocket-Extensions'",
    )
  }

  @Test
  fun webSocketAndApplicationInterceptors() {
    val interceptedCount = AtomicInteger()

          </models>
          <templates>
            <template>reader-stax.vm</template>
            <template>writer-stax.vm</template>
          </templates>
          <params>
            <param>packageModelV4=org.apache.maven.api.cli.extensions</param>
            <param>packageToolV4=org.apache.maven.cling.internal.extension.io</param>

     * Used for Google Image Sitemap extension.
     */
    private List<SitemapImage> images;

    /**
     * List of videos associated with this URL.
     * Used for Video Sitemap extension.
     */
    private List<SitemapVideo> videos;

    /**
     * News information associated with this URL.
     * Used for Google News Sitemap extension.
     */
    private SitemapNews news;

practices when developing a Gradle plugin are to use lazy types (ConfigurableFileCollection, Provider API, domain object containers) when defining configurable parts of a plugin (tasks, extensions, domain objects).  The Provider API provides a consistent way to set conventions, wire related configuration together (extension <- domain object <- task) and avoid evaluation ordering problems.

The Gradle codebase has evolved over time and has a mixture of simple getter/setter methods, Provider API...

 */

import gradlebuild.basics.capitalize
import gradlebuild.pluginpublish.extension.PluginPublishExtension
import java.time.Year

plugins {
    id("gradlebuild.module-identity")
    `maven-publish`
    signing
    `java-gradle-plugin`
    id("com.gradle.plugin-publish")
}

extensions.create<PluginPublishExtension>("pluginPublish", gradlePlugin)

tasks.validatePlugins {

        this.commandDestroyTimeout = commandDestroyTimeout;
    }

    /**
     * Gets file extension from MIME type for creating temp files with proper extensions.
     * This helps ImageMagick correctly identify file formats.
     * @param mimeType The MIME type of the content.
     * @return The file extension including the dot (e.g., ".gif"), or empty string if unknown.
     */

            // extensionArtifacts
            Set<Artifact> extensionArtifacts = new HashSet<>();
            List<Extension> extensions =
                    project.getModel().getDelegate().getBuild().getExtensions();
            if (extensions != null) {
                for (Extension ext : extensions) {
                    String version;
                    if (ext.getVersion() == null || ext.getVersion().isEmpty()) {