src/hotspot/share/oops/valueKlass.hpp

@@ -47,11 +47,11 @@
     *((Array<VMRegPair>**)adr_return_regs()) = NULL;
     *((address*)adr_pack_handler()) = NULL;
     *((address*)adr_unpack_handler()) = NULL;
     assert(pack_handler() == NULL, "pack handler not null");
     *((int*)adr_default_value_offset()) = 0;
-
+    assert(Klass::ptr_is_value_type(this), "Value type klass ptr encoding");
   }
 
   ValueKlassFixedBlock* valueklass_static_bloc() const {
     address adr_jf = adr_value_fields_klasses();
     if (adr_jf != NULL) {