src/hotspot/share/gc/z/zCollectedHeap.cpp

Concurrent class unloading

   assert_locked_or_safepoint(CodeCache_lock);
   ZNMethodTable::register_nmethod(nm);
 }
 
 void ZCollectedHeap::unregister_nmethod(nmethod* nm) {
-  assert_locked_or_safepoint(CodeCache_lock);
+  //assert_locked_or_safepoint(CodeCache_lock);
   ZNMethodTable::unregister_nmethod(nm);
 }
 
 void ZCollectedHeap::verify_nmethod(nmethod* nm) {
   // Does nothing