--- old/src/share/vm/runtime/arguments.cpp	2014-03-24 09:19:55.618646469 +0100
+++ new/src/share/vm/runtime/arguments.cpp	2014-03-24 09:19:55.477697167 +0100
@@ -2217,6 +2217,8 @@
                                        "G1ConcRSHotCardLimit");
     status = status && verify_interval(G1ConcRSLogCacheSize, 0, 31,
                                        "G1ConcRSLogCacheSize");
+    status = status && verify_interval(StringDeduplicationAgeThreshold, 1, markOopDesc::max_age,
+                                       "StringDeduplicationAgeThreshold");
   }
   if (UseConcMarkSweepGC) {
     status = status && verify_min_value(CMSOldPLABNumRefills, 1, "CMSOldPLABNumRefills");