--- old/src/hotspot/share/runtime/thread.hpp	Tue Nov 21 14:38:39 2017
+++ new/src/hotspot/share/runtime/thread.hpp	Tue Nov 21 14:38:38 2017
@@ -1176,7 +1176,7 @@
 
   // JavaThread termination and lifecycle support:
   void smr_delete();
-  bool on_thread_list() { return _on_thread_list; }
+  bool on_thread_list() const { return _on_thread_list; }
   void set_on_thread_list() { _on_thread_list = true; }
 
   // thread has called JavaThread::exit() or is terminated
@@ -1187,7 +1187,7 @@
   bool check_is_terminated(TerminatedTypes l_terminated) const {
     return l_terminated != _not_terminated && l_terminated != _thread_exiting;
   }
-  bool is_terminated();
+  bool is_terminated() const;
   void set_terminated(TerminatedTypes t);
   // special for Threads::remove() which is static:
   void set_terminated_value();