Close kapt context

plugins/kapt3/kapt3-base/src/org/jetbrains/kotlin/kapt3/base/KaptContext.kt

@@ -17,6 +17,7 @@ import org.jetbrains.kotlin.kapt3.base.javac.KaptJavaLog
 import org.jetbrains.kotlin.kapt3.base.util.KaptLogger
 import org.jetbrains.kotlin.kapt3.base.util.isJava9OrLater
 import org.jetbrains.kotlin.kapt3.base.util.putJavacOption
+import java.io.Closeable
 import java.io.File
 import javax.tools.JavaFileManager
 
@@ -27,7 +28,7 @@ open class KaptContext(
     private val mapDiagnosticLocations: Boolean,
     processorOptions: Map<String, String>,
     javacOptions: Map<String, String> = emptyMap()
-) : AutoCloseable {
+) : Closeable {
     val context = Context()
     val compiler: KaptJavaCompiler
     val fileManager: KaptJavaFileManager

plugins/kapt3/kapt3-compiler/src/org/jetbrains/kotlin/kapt3/Kapt3Extension.kt

@@ -149,8 +149,9 @@ abstract class AbstractKapt3Extension(
         if (aptMode.generateStubs) {
             logger.info { "Kotlin files to compile: " + files.map { it.virtualFile?.name ?: "<in memory ${it.hashCode()}>" } }
 
-            val kaptContext = compileStubs(project, module, bindingContext, files.toList())
-            generateKotlinSourceStubs(kaptContext)
+            contextForStubGeneration(project, module, bindingContext, files.toList()).use { context ->
+                generateKotlinSourceStubs(context)
+            }
         }
 
         if (!aptMode.runAnnotationProcessing) return doNotGenerateCode()
@@ -212,7 +213,7 @@ abstract class AbstractKapt3Extension(
         logger.info { "Annotation processing took $annotationProcessingTime ms" }
     }
 
-    private fun compileStubs(
+    private fun contextForStubGeneration(
             project: Project,
             module: ModuleDescriptor,
             bindingContext: BindingContext,