--- old/src/java.rmi/share/classes/sun/rmi/transport/tcp/TCPEndpoint.java	2018-12-06 17:53:34.949587289 -0500
+++ new/src/java.rmi/share/classes/sun/rmi/transport/tcp/TCPEndpoint.java	2018-12-06 17:53:34.777586436 -0500
@@ -738,7 +738,7 @@
                 }
                 hostName = f.getHost();
 
-                if ((hostName == null) || (hostName.equals(""))
+                if ((hostName == null) || (hostName.isEmpty())
                     || (hostName.indexOf('.') < 0 )) {
 
                     hostName = hostAddress;