--- a/src/java.base/share/classes/sun/nio/ch/Net.java	Thu Dec 13 16:14:07 2018 +0100
+++ b/src/java.base/share/classes/sun/nio/ch/Net.java	Thu Dec 13 15:31:05 2018 +0100
@@ -403,14 +403,8 @@
 
     public static boolean isFastTcpLoopbackRequested() {
         String loopbackProp = GetPropertyAction
-                .privilegedGetProperty("jdk.net.useFastTcpLoopback");
-        boolean enable;
-        if ("".equals(loopbackProp)) {
-            enable = true;
-        } else {
-            enable = Boolean.parseBoolean(loopbackProp);
-        }
-        return enable;
+                .privilegedGetProperty("jdk.net.useFastTcpLoopback", "false");
+        return loopbackProp.isEmpty() ? true : Boolean.parseBoolean(loopbackProp);
     }
 
     // -- Socket operations --