src/hotspot/share/oops/arrayKlass.cpp

@@ -303,5 +303,12 @@
  void ArrayKlass::oop_verify_on(oop obj, outputStream* st) {
    guarantee(obj->is_array(), "must be array");
    arrayOop a = arrayOop(obj);
    guarantee(a->length() >= 0, "array with negative length?");
  }
+ 
+ int ArrayKlass::hash_offset_in_bytes(oop obj) const {
+   assert(UseCompactObjectHeaders, "only with compact i-hash");
+   arrayOop ary = arrayOop(obj);
+   BasicType type = element_type();
+   return ary->base_offset_in_bytes(type) + (ary->length() << log2_element_size());
+ }