--- old/src/hotspot/share/utilities/waitBarrier_generic.cpp	2018-12-18 11:15:44.130359016 +0100
+++ new/src/hotspot/share/utilities/waitBarrier_generic.cpp	2018-12-18 11:15:43.807347403 +0100
@@ -52,8 +52,8 @@
     return 0;
   }
   assert(w > 0, "Bad counting");
-  // We need an exact count and never go below 0.
-  // Otherwise the semaphore might contain to many posts.
+  // We need an exact count which never goes below zero,
+  // otherwise the semaphore may be signalled too many times.
   if (Atomic::cmpxchg(w - 1, &_waiters, w) == w) {
     _sem_barrier.signal();
     return w - 1;
@@ -71,7 +71,7 @@
       // There is no thread to wake but we still have barrier threads.
       sp.wait();
     }
-    // We must loop here until there is no waiters or potential waiters.
+    // We must loop here until there are no waiters or potential waiters.
   } while (left > 0 || _barrier_threads > 0);
   OrderAccess::fence();
 }