1 files changed, 4 insertions, 0 deletions
diff --git a/core/src/main/kotlin/javadoc/dokka-adapters.kt b/core/src/main/kotlin/javadoc/dokka-adapters.kt
index 9555aeb94..2de7b524a 100644
--- a/core/src/main/kotlin/javadoc/dokka-adapters.kt
+++ b/core/src/main/kotlin/javadoc/dokka-adapters.kt
@@ -26,6 +26,9 @@ class JavadocGenerator @Inject constructor(val options: DocumentationOptions, va
     override fun buildPackageList(nodes: Iterable<DocumentationNode>) {
         // handled by javadoc itself
     }
+
+    override fun buildExtraOutlines(nodes: Iterable<DocumentationNode>) {
+    }
 }
 
 class JavadocFormatDescriptor : FormatDescriptor {
@@ -36,4 +39,5 @@ class JavadocFormatDescriptor : FormatDescriptor {
     override val javaDocumentationBuilderClass = JavaPsiDocumentationBuilder::class
     override val sampleProcessingService = DefaultSampleProcessingService::class
     override val packageListServiceClass: KClass<out PackageListService>? = null
+    override val extraOutlineServices: KClass<out ExtraOutlineServices>? = null
 }