Don't override task action in KaptGenerateStubsTask

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/internal/kapt/KaptGenerateStubsTask.kt

@@ -83,24 +83,10 @@ open class KaptGenerateStubsTask : KotlinCompile() {
         args.destinationAsFile = this.destinationDir
     }
 
-    override fun execute(inputs: IncrementalTaskInputs) {
+    override fun getSourceRoots(): SourceRoots.ForJvm =
-        val sourceRoots = kotlinCompileTask.getSourceRoots().let {
+        kotlinCompileTask.getSourceRoots().let {
             val javaSourceRoots = it.javaSourceRoots.filterTo(HashSet()) { isSourceRootAllowed(it) }
             val kotlinSourceFiles = it.kotlinSourceFiles
             SourceRoots.ForJvm(kotlinSourceFiles, javaSourceRoots)
         }
-        val allKotlinSources = sourceRoots.kotlinSourceFiles
-
-        logger.kotlinDebug { "All kotlin sources: ${allKotlinSources.pathsAsStringRelativeTo(project.rootProject.projectDir)}" }
-
-        if (allKotlinSources.isEmpty()) {
-            logger.kotlinDebug { "No Kotlin files found, skipping KaptGenerateStubs task" }
-            return
-        }
-
-        sourceRoots.log(this.name, logger)
-        val args = prepareCompilerArguments()
-
-        callCompilerAsync(args, sourceRoots, ChangedFiles(inputs))
-    }
 }

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/Tasks.kt

@@ -256,14 +256,14 @@ abstract class AbstractKotlinCompile<T : CommonCompilerArguments>() : AbstractKo
     }
 
     @TaskAction
-    open fun execute(inputs: IncrementalTaskInputs): Unit {
+    fun execute(inputs: IncrementalTaskInputs) {
         // Check that the JDK tools are available in Gradle (fail-fast, instead of a fail during the compiler run):
         findToolsJar()
 
         val sourceRoots = getSourceRoots()
         val allKotlinSources = sourceRoots.kotlinSourceFiles
 
-        logger.kotlinDebug { "all kotlin sources: ${allKotlinSources.pathsAsStringRelativeTo(project.rootProject.projectDir)}" }
+        logger.kotlinDebug { "All kotlin sources: ${allKotlinSources.pathsAsStringRelativeTo(project.rootProject.projectDir)}" }
 
         if (allKotlinSources.isEmpty()) {
             logger.kotlinDebug { "No Kotlin files found, skipping Kotlin compiler task" }