src/share/vm/gc/g1/heapRegionType.hpp

*** 30,39 ****
--- 30,41 ----
  
  #define hrt_assert_is_valid(tag) \
    assert(is_valid((tag)), "invalid HR type: %u", (uint) (tag))
  
  class HeapRegionType VALUE_OBJ_CLASS_SPEC {
+ friend class VMStructs;
+ 
  private:
    // We encode the value of the heap region type so the generation can be
    // determined quickly. The tag is split into two parts:
    //
    //   major type (young, old, humongous, archive)           : top N-1 bits