src/share/vm/runtime/objectMonitor.hpp

@@ -27,10 +27,12 @@
 
 #include "runtime/os.hpp"
 #include "runtime/park.hpp"
 #include "runtime/perfData.hpp"
 
+class ObjectMonitor;
+
 // ObjectWaiter serves as a "proxy" or surrogate thread.
 // TODO-FIXME: Eliminate ObjectWaiter and use the thread-specific
 // ParkEvent instead.  Beware, however, that the JVMTI code
 // knows about ObjectWaiters, so we'll have to reconcile that code.
 // See next_waiter(), first_waiter(), etc.