--- a/src/hotspot/share/gc/g1/g1RootProcessor.cpp	Wed Aug 08 10:21:23 2018 +0800
+++ b/src/hotspot/share/gc/g1/g1RootProcessor.cpp	Wed Aug 08 15:31:06 2018 +0200
@@ -72,8 +72,8 @@
     _g1h(g1h),
     _process_strong_tasks(G1RP_PS_NumElements),
     _srs(n_workers),
+    _par_state_string(StringTable::weak_storage()),
     _lock(Mutex::leaf, "G1 Root Scanning barrier lock", false, Monitor::_safepoint_check_never),
-    _par_state_string(StringTable::weak_storage()),
     _n_workers_discovered_strong_classes(0) {}
 
 void G1RootProcessor::evacuate_roots(G1ParScanThreadState* pss, uint worker_i) {