--- old/src/hotspot/share/jfr/recorder/service/jfrOptionSet.cpp	2019-04-14 21:53:56.333948981 +0900
+++ new/src/hotspot/share/jfr/recorder/service/jfrOptionSet.cpp	2019-04-14 21:53:55.911949125 +0900
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -106,10 +106,6 @@
   return _stack_depth;
 }
 
-static const u4 STACK_DEPTH_DEFAULT = 64;
-static const u4 MIN_STACK_DEPTH = 1;
-static const u4 MAX_STACK_DEPTH = 2048;
-
 void JfrOptionSet::set_stackdepth(u4 depth) {
   if (depth < MIN_STACK_DEPTH) {
     _stack_depth = MIN_STACK_DEPTH;