--- old/src/share/vm/gc/g1/g1GCPhaseTimes.cpp	2017-07-19 17:21:19.743414600 +0200
+++ new/src/share/vm/gc/g1/g1GCPhaseTimes.cpp	2017-07-19 17:21:18.764807100 +0200
@@ -258,10 +258,10 @@
 }
 
 void G1GCPhaseTimes::debug_phase(WorkerDataArray<double>* phase) const {
-  Log(gc, phases) log;
-  if (log.is_level(LogLevel::Debug)) {
+  LogTarget(Debug, gc, phases) lt;
+  if (lt.is_enabled()) {
     ResourceMark rm;
-    LogStream ls(log.debug());
+    LogStream ls(lt);
     log_phase(phase, 2, &ls, true);
   }
 }