Show warnings for Java methods with external annotations when they called from Kotlin code

core/descriptors.jvm/src/org/jetbrains/kotlin/load/java/components/JavaAnnotationMapper.kt

@@ -21,6 +21,7 @@ import org.jetbrains.kotlin.descriptors.SourceElement
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.KotlinRetention
 import org.jetbrains.kotlin.descriptors.annotations.KotlinTarget
+import org.jetbrains.kotlin.load.java.descriptors.PossiblyExternalAnnotationDescriptor
 import org.jetbrains.kotlin.load.java.lazy.LazyJavaResolverContext
 import org.jetbrains.kotlin.load.java.lazy.descriptors.LazyJavaAnnotationDescriptor
 import org.jetbrains.kotlin.load.java.structure.*
@@ -103,7 +104,7 @@ open class JavaAnnotationDescriptor(
     c: LazyJavaResolverContext,
     annotation: JavaAnnotation?,
     override val fqName: FqName
-) : AnnotationDescriptor {
+) : AnnotationDescriptor, PossiblyExternalAnnotationDescriptor {
     override val source: SourceElement = annotation?.let { c.components.sourceElementFactory.source(it) } ?: SourceElement.NO_SOURCE
 
     override val type: SimpleType by c.storageManager.createLazyValue { c.module.builtIns.getBuiltInClassByFqName(fqName).defaultType }
@@ -111,6 +112,8 @@ open class JavaAnnotationDescriptor(
     protected val firstArgument: JavaAnnotationArgument? = annotation?.arguments?.firstOrNull()
 
     override val allValueArguments: Map<Name, ConstantValue<*>> get() = emptyMap()
+
+    override val isIdeExternalAnnotation: Boolean = annotation?.isIdeExternalAnnotation == true
 }
 
 class JavaDeprecatedAnnotationDescriptor(

core/descriptors.jvm/src/org/jetbrains/kotlin/load/java/descriptors/PossiblyExternalAnnotationDescriptor.kt

@@ -0,0 +1,12 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.load.java.descriptors
+
+import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
+
+interface PossiblyExternalAnnotationDescriptor : AnnotationDescriptor {
+    val isIdeExternalAnnotation: Boolean
+}

core/descriptors.jvm/src/org/jetbrains/kotlin/load/java/lazy/descriptors/LazyJavaAnnotationDescriptor.kt

@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.descriptors.findNonGenericClassAcrossDependencies
 import org.jetbrains.kotlin.load.java.JvmAnnotationNames.DEFAULT_ANNOTATION_MEMBER_NAME
 import org.jetbrains.kotlin.load.java.components.DescriptorResolverUtils
 import org.jetbrains.kotlin.load.java.components.TypeUsage
+import org.jetbrains.kotlin.load.java.descriptors.PossiblyExternalAnnotationDescriptor
 import org.jetbrains.kotlin.load.java.lazy.LazyJavaResolverContext
 import org.jetbrains.kotlin.load.java.lazy.types.toAttributes
 import org.jetbrains.kotlin.load.java.structure.*
@@ -39,7 +40,7 @@ import org.jetbrains.kotlin.types.isError
 class LazyJavaAnnotationDescriptor(
     private val c: LazyJavaResolverContext,
     private val javaAnnotation: JavaAnnotation
-) : AnnotationDescriptor {
+) : AnnotationDescriptor, PossiblyExternalAnnotationDescriptor {
     override val fqName by c.storageManager.createNullableLazyValue {
         javaAnnotation.classId?.asSingleFqName()
     }
@@ -112,4 +113,6 @@ class LazyJavaAnnotationDescriptor(
             ClassId.topLevel(fqName),
             c.components.deserializedDescriptorResolver.components.notFoundClasses
         )
+
+    override val isIdeExternalAnnotation: Boolean = javaAnnotation.isIdeExternalAnnotation
 }

core/descriptors.jvm/src/org/jetbrains/kotlin/load/java/structure/javaElements.kt

@@ -48,6 +48,8 @@ interface JavaTypeParameterListOwner : JavaElement {
 interface JavaAnnotation : JavaElement {
     val arguments: Collection<JavaAnnotationArgument>
     val classId: ClassId?
+    val isIdeExternalAnnotation: Boolean
+        get() = false
 
     fun resolve(): JavaClass?
 }

core/descriptors.jvm/src/org/jetbrains/kotlin/load/java/typeEnhancement/signatureEnhancement.kt

@@ -18,10 +18,7 @@ package org.jetbrains.kotlin.load.java.typeEnhancement
 
 import org.jetbrains.kotlin.builtins.jvm.JavaToKotlinClassMap
 import org.jetbrains.kotlin.descriptors.*
-import org.jetbrains.kotlin.descriptors.annotations.Annotated
-import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
-import org.jetbrains.kotlin.descriptors.annotations.Annotations
-import org.jetbrains.kotlin.descriptors.annotations.composeAnnotations
+import org.jetbrains.kotlin.descriptors.annotations.*
 import org.jetbrains.kotlin.load.java.*
 import org.jetbrains.kotlin.load.java.descriptors.*
 import org.jetbrains.kotlin.load.java.lazy.LazyJavaResolverContext
@@ -34,6 +31,7 @@ import org.jetbrains.kotlin.resolve.constants.EnumValue
 import org.jetbrains.kotlin.resolve.deprecation.DEPRECATED_FUNCTION_KEY
 import org.jetbrains.kotlin.resolve.descriptorUtil.firstArgument
 import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameOrNull
+import org.jetbrains.kotlin.resolve.descriptorUtil.isSourceAnnotation
 import org.jetbrains.kotlin.types.*
 import org.jetbrains.kotlin.types.checker.KotlinTypeChecker
 import org.jetbrains.kotlin.types.typeUtil.isTypeParameter
@@ -103,6 +101,12 @@ class SignatureEnhancement(
                 isForWarningOnly = true
             )
             else -> null
+        }?.let { migrationStatus ->
+            if (!migrationStatus.isForWarningOnly
+                    && annotationDescriptor is PossiblyExternalAnnotationDescriptor
+                    && annotationDescriptor.isIdeExternalAnnotation)
+                migrationStatus.copy(isForWarningOnly = true)
+            else migrationStatus
         }
     }