--- old/src/share/vm/gc/g1/concurrentMark.cpp	2015-06-12 14:48:31.288146613 +0200
+++ new/src/share/vm/gc/g1/concurrentMark.cpp	2015-06-12 14:48:31.152142181 +0200
@@ -636,7 +636,7 @@
   gclog_or_tty->print_cr("CL Sleep Factor          %1.4lf", cleanup_sleep_factor());
 #endif
 
-  _parallel_workers = new FlexibleWorkGang("G1 Marker",
+  _parallel_workers = new WorkGang("G1 Marker",
        _max_parallel_marking_threads, false, true);
   if (_parallel_workers == NULL) {
     vm_exit_during_initialization("Failed necessary allocation.");