message: Classes that are root/!can_delete() could be instantiated via JNI
  Summary:
  This is a de-optimizations to make things safer.
  The native JNI function `AllocObject` allows creating an object without calling a constructor (resulting in all fields being 0-initialized):
diff: @@ -641,7 +641,7 @@ bool is_uninstantiable_class(DexType* type) {
  }
  auto cls = type_class(type);
  if (cls == nullptr || is_interface(cls) || is_native(cls) ||
  - cls->is_external()) {
  + cls->is_external() || !cls->rstate.can_delete()) {
  return false;
  }
  return !cls->has_ctors();
  