--- a/hotspot/src/share/vm/gc/g1/g1HotCardCache.cpp	Mon Sep 28 15:05:02 2015 +0200
+++ b/hotspot/src/share/vm/gc/g1/g1HotCardCache.cpp	Tue Sep 29 11:02:08 2015 +0200
@@ -112,8 +112,7 @@
           // RSet updating while within an evacuation pause.
           // In this case worker_i should be the id of a GC worker thread
           assert(SafepointSynchronize::is_at_safepoint(), "Should be at a safepoint");
-          assert(worker_i < ParallelGCThreads,
-                 err_msg("incorrect worker id: %u", worker_i));
+          assert(worker_i < ParallelGCThreads, "incorrect worker id: %u", worker_i);
 
           into_cset_dcq->enqueue(card_ptr);
         }