--- old/src/share/vm/gc_implementation/g1/g1OopClosures.cpp	2014-04-18 14:44:20.586148779 +0200
+++ new/src/share/vm/gc_implementation/g1/g1OopClosures.cpp	2014-04-18 14:44:20.430148781 +0200
@@ -29,3 +29,7 @@
 G1ParCopyHelper::G1ParCopyHelper(G1CollectedHeap* g1,  G1ParScanThreadState* par_scan_state) :
   G1ParClosureSuper(g1, par_scan_state), _scanned_klass(NULL),
   _cm(_g1->concurrent_mark()) {}
+
+G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) :
+  _g1(g1), _par_scan_state(par_scan_state),
+  _worker_id(par_scan_state->queue_num()) { }