--- old/src/hotspot/share/gc/shenandoah/shenandoahBarrierSet.hpp	2019-02-25 16:57:05.079423152 -0500
+++ new/src/hotspot/share/gc/shenandoah/shenandoahBarrierSet.hpp	2019-02-25 16:57:04.687402483 -0500
@@ -84,8 +84,8 @@
 
   virtual void on_thread_create(Thread* thread);
   virtual void on_thread_destroy(Thread* thread);
-  virtual void on_thread_attach(JavaThread* thread);
-  virtual void on_thread_detach(JavaThread* thread);
+  virtual void on_thread_attach(Thread* thread);
+  virtual void on_thread_detach(Thread* thread);
 
   virtual oop read_barrier(oop src);