src/hotspot/share/oops/instanceOop.hpp

*** 42,53 ****
      return (UseCompressedOops && UseCompressedClassPointers) ?
               klass_gap_offset_in_bytes() :
               sizeof(instanceOopDesc);
    }
  
!   static bool contains_field_offset(int offset, int nonstatic_field_size) {
      int base_in_bytes = base_offset_in_bytes();
      return (offset >= base_in_bytes &&
              (offset-base_in_bytes) < nonstatic_field_size * heapOopSize);
    }
  };
  
--- 42,57 ----
      return (UseCompressedOops && UseCompressedClassPointers) ?
               klass_gap_offset_in_bytes() :
               sizeof(instanceOopDesc);
    }
  
!   static bool contains_field_offset(int offset, int nonstatic_field_size, bool is_value) {
      int base_in_bytes = base_offset_in_bytes();
+     if (is_value) {
+       // The first field of value types is aligned on a long boundary
+       base_in_bytes = align_up(base_in_bytes, BytesPerLong);
+     }
      return (offset >= base_in_bytes &&
              (offset-base_in_bytes) < nonstatic_field_size * heapOopSize);
    }
  };