--- old/src/hotspot/os_cpu/bsd_zero/thread_bsd_zero.hpp	2018-03-20 18:39:42.377648527 -0400
+++ new/src/hotspot/os_cpu/bsd_zero/thread_bsd_zero.hpp	2018-03-20 18:39:41.614577712 -0400
@@ -86,10 +86,7 @@
   }
 
  private:
-  frame pd_last_frame() {
-    assert(has_last_Java_frame(), "must have last_Java_sp() when suspended");
-    return frame(last_Java_fp(), last_Java_sp());
-  }
+  frame pd_last_frame();
 
  public:
   static ByteSize last_Java_fp_offset() {