--- old/src/java.management/share/classes/com/sun/jmx/remote/internal/ServerNotifForwarder.java	2018-12-06 17:25:58.897375370 -0500
+++ new/src/java.management/share/classes/com/sun/jmx/remote/internal/ServerNotifForwarder.java	2018-12-06 17:25:58.717374477 -0500
@@ -114,7 +114,7 @@
 
         // 6238731: set the default domain if no domain is set.
         ObjectName nn = name;
-        if (name.getDomain() == null || name.getDomain().equals("")) {
+        if (name.getDomain() == null || name.getDomain().isEmpty()) {
             try {
                 nn = ObjectName.getInstance(mbeanServer.getDefaultDomain(),
                                             name.getKeyPropertyList());