--- old/src/share/vm/gc/serial/defNewGeneration.cpp	2015-05-28 12:12:04.019052456 +0900
+++ new/src/share/vm/gc/serial/defNewGeneration.cpp	2015-05-28 12:12:03.890136683 +0900
@@ -960,7 +960,7 @@
                             GCCause::to_string(gch->gc_cause()));
       }
       assert(gch->gc_cause() == GCCause::_scavenge_alot ||
-             (gch->gc_cause() == GCCause::_java_lang_system_gc && UseConcMarkSweepGC && ExplicitGCInvokesConcurrent) ||
+             (GCCause::is_user_requested_gc(gch->gc_cause()) && UseConcMarkSweepGC && ExplicitGCInvokesConcurrent) ||
              !gch->incremental_collection_failed(),
              "Twice in a row");
       seen_incremental_collection_failed = false;