IDEA-390110 [gradle] fix: remove non-model classes from getExtraProjectModelClasses

KotlinTarget, IdeaKotlinDependency, and Extras are not Gradle tooling models — they have no model builders and are never fetched by the IDE. Registering them in getExtraProjectModelClasses() is a no-op at best and misleading at worst.

(cherry picked from commit 7f9b7f92f44eedb0c9d1b86ea1b8801ad1de26b4)
IJ-CR-214557

GitOrigin-RevId: 46abece72862bb680302363bd51bee40a6ed52ac

plugins/kotlin/gradle/gradle-java/src/org/jetbrains/kotlin/idea/gradleJava/configuration/KotlinMppGradleProjectResolver.kt

@@ -32,7 +32,6 @@ import org.jetbrains.kotlin.idea.gradleJava.configuration.mpp.populateModuleDepe
 import org.jetbrains.kotlin.idea.gradleJava.configuration.mpp.populateMppModuleDataNode
 import org.jetbrains.kotlin.idea.gradleJava.configuration.utils.KotlinModuleUtils.getKotlinModuleId
 import org.jetbrains.kotlin.idea.gradleTooling.KotlinMPPGradleModel
-import org.jetbrains.kotlin.idea.gradleTooling.KotlinMPPGradleModelBuilder
 import org.jetbrains.kotlin.idea.gradleTooling.KotlinMPPGradleModelImpl
 import org.jetbrains.kotlin.idea.projectModel.KotlinCompilation
 import org.jetbrains.kotlin.idea.projectModel.KotlinComponent
@@ -60,16 +59,16 @@ open class KotlinMppGradleProjectResolver : AbstractProjectResolverExtension() {
         val moduleDataNode: DataNode<ModuleData>
     }
 
-    override fun getToolingExtensionsClasses(): Set<Class<out Any>> {
+    override fun getToolingExtensionsClasses(): Set<Class<*>> {
         return setOf(
-            KotlinMPPGradleModelBuilder::class.java, KotlinTarget::class.java,
-            IdeaKotlinDependency::class.java, Extras::class.java, Unit::class.java
+            KotlinMPPGradleModel::class.java,   // Module: intellij.kotlin.gradle.tooling.impl
+            KotlinTarget::class.java,           // Module: intellij.kotlin.base.project-model
+            IdeaKotlinDependency::class.java,   // Library: kotlin-gradle-plugin-idea
+            Extras::class.java                  // Library: kotlin-tooling-core
         )
     }
 
-    override fun getExtraProjectModelClasses(): Set<Class<out Any>> {
-        return setOf(KotlinMPPGradleModel::class.java, KotlinTarget::class.java, IdeaKotlinDependency::class.java, Extras::class.java)
-    }
+    override fun getExtraProjectModelClasses(): Set<Class<*>> = setOf(KotlinMPPGradleModel::class.java)
 
     override fun getExtraCommandLineArgs(): List<String> =
         /**

plugins/kotlin/gradle/gradle-java/src/org/jetbrains/kotlin/idea/gradleJava/testing/KotlinTestTasksResolver.kt

@@ -14,7 +14,6 @@ import com.intellij.platform.diagnostic.telemetry.helpers.use
 import org.gradle.tooling.model.idea.IdeaModule
 import org.jetbrains.kotlin.idea.gradleJava.configuration.getMppModel
 import org.jetbrains.kotlin.idea.gradleTooling.KotlinMPPGradleModel
-import org.jetbrains.kotlin.idea.gradleTooling.KotlinMPPGradleModelBuilder
 import org.jetbrains.kotlin.idea.projectModel.KotlinTarget
 import org.jetbrains.plugins.gradle.service.project.AbstractProjectResolverExtension
 import org.jetbrains.plugins.gradle.util.GradleConstants
@@ -26,9 +25,12 @@ open class KotlinTestTasksResolver : AbstractProjectResolverExtension() {
         internal const val ENABLED_REGISTRY_KEY = "kotlin.gradle.testing.enabled"
     }
 
-    override fun getToolingExtensionsClasses(): Set<Class<out Any>> {
-        return setOf(KotlinMPPGradleModelBuilder::class.java, KotlinTarget::class.java, Unit::class.java)
-    }
+    override fun getToolingExtensionsClasses(): Set<Class<*>> = setOf(
+        KotlinMPPGradleModel::class.java,   // Module: intellij.kotlin.gradle.tooling.impl
+        KotlinTarget::class.java,           // Module: intellij.kotlin.base.project-model
+    )
+
+    override fun getExtraProjectModelClasses(): Set<Class<*>> = setOf(KotlinMPPGradleModel::class.java)
 
     override fun populateModuleTasks(
         gradleModule: IdeaModule,

plugins/kotlin/gradle/gradle-java/tests.shared/test/org/jetbrains/kotlin/idea/codeInsight/gradle/BuildGradleModel.kt

@@ -15,9 +15,10 @@ import org.gradle.tooling.model.idea.IdeaModule
 import org.gradle.tooling.model.idea.IdeaProject
 import org.gradle.util.GradleVersion
 import org.jetbrains.kotlin.gradle.idea.tcs.IdeaKotlinDependency
-import org.jetbrains.kotlin.idea.gradleTooling.KotlinMPPGradleModelBuilder
-import org.jetbrains.kotlin.idea.projectModel.KotlinCompilation
+import org.jetbrains.kotlin.idea.gradleTooling.KotlinMPPGradleModel
+import org.jetbrains.kotlin.idea.projectModel.KotlinTarget
 import org.jetbrains.kotlin.tooling.core.Extras
+import org.jetbrains.kotlin.utils.addIfNotNull
 import org.jetbrains.plugins.gradle.service.execution.createMainInitScript
 import org.jetbrains.plugins.gradle.service.execution.createTargetPathMapperInitScript
 import org.jetbrains.plugins.gradle.service.modelAction.GradleIdeaModelHolder
@@ -67,46 +68,18 @@ fun <T : Any> buildGradleModel(
 
     connector.connect().use { gradleConnection ->
         val buildAction = GradleModelFetchAction(gradleVersion)
-            .addProjectImportModelProviders(
-                GradleClassProjectModelProvider.createAll(
-                    clazz.java,
-                    /* Representative of the `kotlin.project-module` module */
-                    KotlinCompilation::class.java,
-
-                    /* Representative of the `kotlin-tooling-core` library */
-                    Extras::class.java,
-
-                    /* Representative of the `kotlin-gradle-plugin-idea` library */
-                    IdeaKotlinDependency::class.java,
-
-                    /* Representative of the kotlin stdlib */
-                    Unit::class.java
-                )
-            )
-            .addProjectImportModelProviders(
-                GradleClassBuildModelProvider.createAll(
-                    IdeaProject::class.java
-                )
-            )
+            .addProjectImportModelProviders(GradleClassProjectModelProvider.createAll(clazz.java))
+            .addProjectImportModelProviders(GradleClassBuildModelProvider.createAll(IdeaProject::class.java))
 
         val executionSettings = GradleExecutionSettings()
         val targetPathMapperInitScript = createTargetPathMapperInitScript()
         executionSettings.prependArguments(GradleConstants.INIT_SCRIPT_CMD_OPTION, targetPathMapperInitScript.toString())
-        val kotlinToolingExtensionClasses = mutableSetOf(
-            /* Representative of the `gradle-tooling` module */
-            KotlinMPPGradleModelBuilder::class.java,
-
-            /* Representative of the `kotlin.project-module` module */
-            KotlinCompilation::class.java,
-
-            /* Representative of the `kotlin-tooling-core` library */
-            Extras::class.java,
-
-            /* Representative of the `kotlin-gradle-plugin-idea` library */
-            IdeaKotlinDependency::class.java,
-        )
-        if (builderClass != null) {
-            kotlinToolingExtensionClasses.add(builderClass)
+        val kotlinToolingExtensionClasses = buildSet {
+            add(KotlinMPPGradleModel::class.java)   // Module: intellij.kotlin.gradle.tooling.impl
+            add(KotlinTarget::class.java)           // Module: intellij.kotlin.base.project-model
+            add(IdeaKotlinDependency::class.java)   // Library: kotlin-gradle-plugin-idea
+            add(Extras::class.java)                 // Library: kotlin-tooling-core
+            addIfNotNull(builderClass)
         }
         val initScript = createMainInitScript(false, kotlinToolingExtensionClasses)
         executionSettings.addInitScript(gradleVersion, initScript)