--- a/src/java.base/windows/classes/sun/net/www/protocol/file/Handler.java	Thu Dec 13 16:14:07 2018 +0100
+++ b/src/java.base/windows/classes/sun/net/www/protocol/file/Handler.java	Thu Dec 13 15:31:05 2018 +0100
@@ -145,9 +145,9 @@
          */
         String s1 = u1.getHost();
         String s2 = u2.getHost();
-        if ("localhost".equalsIgnoreCase(s1) && ( s2 == null || "".equals(s2)))
+        if ("localhost".equalsIgnoreCase(s1) && (s2 == null || s2.isEmpty()))
             return true;
-        if ("localhost".equalsIgnoreCase(s2) && ( s1 == null || "".equals(s1)))
+        if ("localhost".equalsIgnoreCase(s2) && (s1 == null || s1.isEmpty()))
             return true;
         return super.hostsEqual(u1, u2);
     }