--- old/src/share/vm/runtime/thread.cpp	2017-05-18 14:10:34.196291631 +0200
+++ new/src/share/vm/runtime/thread.cpp	2017-05-18 14:10:34.033294643 +0200
@@ -336,9 +336,6 @@
 
 
 Thread::~Thread() {
-  // Reclaim the objectmonitors from the omFreeList of the moribund thread.
-  ObjectSynchronizer::omFlush(this);
-
   EVENT_THREAD_DESTRUCT(this);
 
   // stack_base can be NULL if the thread is never started or exited before
@@ -4251,6 +4248,10 @@
 }
 
 void Threads::remove(JavaThread* p) {
+
+  // Reclaim the objectmonitors from the omFreeList of the moribund thread.
+  ObjectSynchronizer::omFlush(p);
+
   // Extra scope needed for Thread_lock, so we can check
   // that we do not remove thread without safepoint code notice
   { MutexLocker ml(Threads_lock);