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src/hotspot/share/gc/z/zLock.inline.hpp

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@@ -78,14 +78,18 @@
 }
 
 template <typename T>
 inline ZLocker<T>::ZLocker(T* lock) :
     _lock(lock) {
-  _lock->lock();
+  if (_lock != NULL) {
+    _lock->lock();
+  }
 }
 
 template <typename T>
 inline ZLocker<T>::~ZLocker() {
-  _lock->unlock();
+  if (_lock != NULL) {
+    _lock->unlock();
+  }
 }
 
 #endif // SHARE_GC_Z_ZLOCK_INLINE_HPP



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