*** old/src/hotspot/share/code/compiledMethod.hpp	Wed Nov 15 21:00:32 2017
--- new/src/hotspot/share/code/compiledMethod.hpp	Wed Nov 15 21:00:32 2017

*** 181,191 ****
--- 181,193 ----
    void  set_lazy_critical_native(bool z)          { _lazy_critical_native = z; }
  
    bool  has_wide_vectors() const                  { return _has_wide_vectors; }
    void  set_has_wide_vectors(bool z)              { _has_wide_vectors = z; }
  
!   enum { in_use       = 0,   // executable nmethod
!   enum { not_installed = -1, // in construction, only the owner doing the construction is
+                              // allowed to advance state
+          in_use        = 0,  // executable nmethod
           not_used      = 1,  // not entrant, but revivable
           not_entrant   = 2,  // marked for deoptimization but activations may still exist,
                               // will be transformed to zombie when all activations are gone
           zombie        = 3,  // no activations exist, nmethod is ready for purge
           unloaded      = 4   // there should be no activations, should not be called,