[REEF-362] Implement a Wake Transport using HTTP

lang/java/reef-wake/wake/src/main/java/org/apache/reef/wake/remote/transport/netty/NettyMessagingTransport.java

@@ -139,7 +139,7 @@ private NettyMessagingTransport(
       try{
         this.uri = URI.create("http://" + host);
       } catch (IllegalArgumentException e){
-        throw new RemoteRuntimeException("Invalid host address: " + host);
+        throw new RemoteRuntimeException("Invalid host address: " + host, e);
       }
     } else {
       this.uri = null;