--- old/src/share/vm/gc/parallel/psScavenge.inline.hpp	2015-12-01 12:06:18.338930468 +0100
+++ new/src/share/vm/gc/parallel/psScavenge.inline.hpp	2015-12-01 12:06:18.222930472 +0100
@@ -29,6 +29,7 @@
 #include "gc/parallel/parallelScavengeHeap.hpp"
 #include "gc/parallel/psPromotionManager.inline.hpp"
 #include "gc/parallel/psScavenge.hpp"
+#include "logging/log.hpp"
 #include "memory/iterator.hpp"
 #include "utilities/globalDefinitions.hpp"
 
@@ -139,13 +140,11 @@
     // no references into  the young gen and we can skip it.
 
 #ifndef PRODUCT
-    if (TraceScavenge) {
       ResourceMark rm;
-      gclog_or_tty->print_cr("PSScavengeKlassClosure::do_klass " PTR_FORMAT ", %s, dirty: %s",
-                             p2i(klass),
-                             klass->external_name(),
-                             klass->has_modified_oops() ? "true" : "false");
-    }
+      log_develop_trace(gc, scavenge)("PSScavengeKlassClosure::do_klass " PTR_FORMAT ", %s, dirty: %s",
+                                      p2i(klass),
+                                      klass->external_name(),
+                                      klass->has_modified_oops() ? "true" : "false");
 #endif
 
     if (klass->has_modified_oops()) {