Use non-routable 0.0.0.0 instead of '.invalid' hostname to simulate refused connection exception

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpasyncclient/branches/4.1.x@1748358 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/httpasyncclient/src/test/java/org/apache/http/nio/client/integration/TestHttpAsyncPrematureTermination.java b/httpasyncclient/src/test/java/org/apache/http/nio/client/integration/TestHttpAsyncPrematureTermination.java
index 200be49..87c8595 100644
--- a/httpasyncclient/src/test/java/org/apache/http/nio/client/integration/TestHttpAsyncPrematureTermination.java
+++ b/httpasyncclient/src/test/java/org/apache/http/nio/client/integration/TestHttpAsyncPrematureTermination.java
@@ -242,7 +242,7 @@
                 .build();
         this.httpclient.start();
 
-        final HttpGet get = new HttpGet("http://stuff.invalid/");
+        final HttpGet get = new HttpGet("http://0.0.0.0/");
         final HttpAsyncRequestProducer producer = HttpAsyncMethods.create(get);
 
         final AtomicBoolean closed = new AtomicBoolean(false);