--- old/src/share/vm/runtime/sharedRuntime.cpp	Fri Jul  3 16:07:37 2015
+++ new/src/share/vm/runtime/sharedRuntime.cpp	Fri Jul  3 16:07:36 2015
@@ -1796,9 +1796,7 @@
 
 // Handles the uncommon case in locking, i.e., contention or an inflated lock.
 JRT_BLOCK_ENTRY(void, SharedRuntime::complete_monitor_locking_C(oopDesc* _obj, BasicLock* lock, JavaThread* thread))
-  // Disable ObjectSynchronizer::quick_enter() in default config
-  // until JDK-8077392 is resolved.
-  if ((SyncFlags & 256) != 0 && !SafepointSynchronize::is_synchronizing()) {
+  if (!SafepointSynchronize::is_synchronizing()) {
     // Only try quick_enter() if we're not trying to reach a safepoint
     // so that the calling thread reaches the safepoint more quickly.
     if (ObjectSynchronizer::quick_enter(_obj, thread, lock)) return;