--- old/src/jdk.jcmd/share/classes/sun/tools/jmap/JMap.java	2018-12-06 17:53:48.221653102 -0500
+++ new/src/jdk.jcmd/share/classes/sun/tools/jmap/JMap.java	2018-12-06 17:53:48.049652249 -0500
@@ -149,7 +149,7 @@
         throws AttachNotSupportedException, IOException,
                UnsupportedEncodingException {
         String liveopt = "-all";
-        if (options.equals("") || options.equals("all")) {
+        if (options.isEmpty() || options.equals("all")) {
             //  pass
         }
         else if (options.equals("live")) {