--- old/src/hotspot/share/classfile/javaClasses.cpp	2019-04-24 02:52:06.969694107 -0400
+++ new/src/hotspot/share/classfile/javaClasses.cpp	2019-04-24 02:52:06.462664426 -0400
@@ -1613,7 +1613,6 @@
 int java_lang_Thread::_tid_offset = 0;
 int java_lang_Thread::_thread_status_offset = 0;
 int java_lang_Thread::_park_blocker_offset = 0;
-int java_lang_Thread::_park_event_offset = 0 ;
 
 #define THREAD_FIELDS_DO(macro) \
   macro(_name_offset,          k, vmSymbols::name_name(), string_signature, false); \
@@ -1627,8 +1626,7 @@
   macro(_stackSize_offset,     k, "stackSize", long_signature, false); \
   macro(_tid_offset,           k, "tid", long_signature, false); \
   macro(_thread_status_offset, k, "threadStatus", int_signature, false); \
-  macro(_park_blocker_offset,  k, "parkBlocker", object_signature, false); \
-  macro(_park_event_offset,    k, "nativeParkEventPointer", long_signature, false)
+  macro(_park_blocker_offset,  k, "parkBlocker", object_signature, false);
 
 void java_lang_Thread::compute_offsets() {
   assert(_group_offset == 0, "offsets should be initialized only once");
@@ -1745,15 +1743,6 @@
   return java_thread->obj_field(_park_blocker_offset);
 }
 
-jlong java_lang_Thread::park_event(oop java_thread) {
-  return java_thread->long_field(_park_event_offset);
-}
-
-bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) {
-  java_thread->long_field_put(_park_event_offset, ptr);
-  return true;
-}
-
 const char* java_lang_Thread::thread_status_name(oop java_thread) {
   ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
   switch (status) {