--- old/src/jdk.naming.dns/share/classes/com/sun/jndi/dns/DnsName.java	2018-12-06 17:26:47.121614501 -0500
+++ new/src/jdk.naming.dns/share/classes/com/sun/jndi/dns/DnsName.java	2018-12-06 17:26:46.953613668 -0500
@@ -368,7 +368,7 @@
 
     boolean hasRootLabel() {
         return (!isEmpty() &&
-                get(0).equals(""));
+                get(0).isEmpty());
     }
 
     /*
@@ -442,7 +442,7 @@
         // label of the name.  Those two are special cases in that for
         // all other domain names, the number of labels is one greater
         // than the number of dot separators.
-        if (!name.equals("") && !name.equals(".")) {
+        if (!name.isEmpty() && !name.equals(".")) {
             add(0, label.toString());
         }