only stub default constructor when compiling against .java source files

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

@@ -619,7 +619,7 @@ class LazyJavaClassMemberScope(
 
     private fun createDefaultConstructor(): ClassConstructorDescriptor? {
         val isAnnotation: Boolean = jClass.isAnnotationType
-        if (jClass.isInterface && !isAnnotation)
+        if ((jClass.isInterface || !jClass.hasDefaultConstructor()) && !isAnnotation)
             return null
 
         val classDescriptor = ownerDescriptor

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

@@ -90,6 +90,7 @@ interface JavaClass : JavaClassifier, JavaTypeParameterListOwner, JavaModifierLi
     val methods: Collection<JavaMethod>
     val fields: Collection<JavaField>
     val constructors: Collection<JavaConstructor>
+    fun hasDefaultConstructor(): Boolean
 }
 
 val JavaClass.classId: ClassId?

core/descriptors.runtime/src/org/jetbrains/kotlin/descriptors/runtime/structure/ReflectJavaClass.kt

@@ -96,6 +96,8 @@ class ReflectJavaClass(
             .map(::ReflectJavaConstructor)
             .toList()
 
+    override fun hasDefaultConstructor() = false // any default constructor is returned by constructors
+
     override val lightClassOriginKind: LightClassOriginKind?
         get() = null