--- old/src/jdk.naming.dns/share/classes/com/sun/jndi/dns/DnsUrl.java	2018-12-06 17:53:52.805675833 -0500
+++ new/src/jdk.naming.dns/share/classes/com/sun/jndi/dns/DnsUrl.java	2018-12-06 17:53:52.637674999 -0500
@@ -89,7 +89,7 @@
         domain = path.startsWith("/")
             ? path.substring(1)
             : path;
-        domain = domain.equals("")
+        domain = domain.isEmpty()
             ? "."
             : UrlUtil.decode(domain);