Desktop module invalid stream header: 3C21646F


I have run into a problem with the Desktop module.

First of all: If run the Application (Server and Desktop) on my local environment, it works fine.
But now i have the following usecase:

We have a singleWar-Deployment in a tomcat on a Linux-VM.
Our application has a Web- and a Desktop-App
The Web-App is accessible on the VM and works fine.
(The Web-App is accessible under “http://:8080//”)
(In our case, and are equals)

Now I want to run the Desktop App on my Local Windows computer and access the Server (Middleware) on the Linux-VM.
For this I have adapted the file „“ in the desktop module and changed:

# Middleware connection
cuba.connectionUrlList = http://<hostname>:8080/<warFileName>/<modulePrefix>-core

Now I started the Desktop App (usually I just start the main-method in and try to logg in.
Immediately i get the following exception:
a org.springframework.remoting.RemoteAccessException: Could not access HTTP invoker remote service at [cuba_AuthenticationService]; nested exception is invalid stream header: 3C21646F

I can see the Request in the localhost_access_log form the tomcat:

„POST /<warFileName>/<modulePrefix>-core /remoting/cuba_AuthenticationService HTTP/1.1" 301 -
"GET /<warFileName>HTTP/1.1" 302 -
"GET /<warFileName>/ HTTP/1.1" 200 2336

I tried to change a few other configurations, but with the same Result
Did I miss something?
Whats the right way to achieve my goal?


Hi Christian,

The connection URL is wrong, it should end with WAR name and cannot have any nested part. However, if you are using different clients, I would highly recommend you to build separate WARs for the middleware and web client. Then your clients will have the same connection URL like this: