src/hotspot/share/prims/jvm.cpp

*** 651,660 ****
--- 651,661 ----
    // All arrays are considered to be cloneable (See JLS 20.1.5)
    if (!klass->is_cloneable()) {
      ResourceMark rm(THREAD);
      THROW_MSG_0(vmSymbols::java_lang_CloneNotSupportedException(), klass->external_name());
    }
+   assert(!EnableValhalla || !obj->klass()->is_value(), "Clone disallowed on value type");
  
    // Make shallow object copy
    const int size = obj->size();
    oop new_obj_oop = NULL;
    if (obj->is_array()) {