--- old/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/Hashtable.java	2019-05-03 14:53:04.952468141 +0200
+++ new/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/utilities/Hashtable.java	2019-05-03 14:53:04.720467020 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2018, 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
@@ -49,8 +49,8 @@
     return HashtableEntry.class;
   }
 
-  public int computeHash(Symbol name) {
-    return (int) name.identityHash();
+  public long computeHash(Symbol name) {
+    return name.identityHash();
   }
 
   public int hashToIndex(long fullHash) {