--- a/src/jdk.attach/macosx/classes/sun/tools/attach/VirtualMachineImpl.java	Wed Feb 20 09:43:01 2019 -0800
+++ b/src/jdk.attach/macosx/classes/sun/tools/attach/VirtualMachineImpl.java	Wed Feb 20 11:36:02 2019 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 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
@@ -139,7 +139,7 @@
      * Execute the given command in the target VM.
      */
     InputStream execute(String cmd, Object ... args) throws AgentLoadException, IOException {
-        assert args.length <= 3;                // includes null
+        assert args.length <= 4;                // includes null
 
         // did we detach?
         synchronized (this) {
@@ -167,7 +167,7 @@
             writeString(s, PROTOCOL_VERSION);
             writeString(s, cmd);
 
-            for (int i=0; i<3; i++) {
+            for (int i = 0; i < 4; i++) {
                 if (i < args.length && args[i] != null) {
                     writeString(s, (String)args[i]);
                 } else {