Using cargo to deploy war to remote Jboss7 server - jboss7.x

Question

I would like to use Cargo to deploy my maven generated war file to a remote JBoss Server that is already running.
I have configured my pom.xml like this:
...
<plugin>
<groupId>org.codehaus.cargo</groupId>
<artifactId>cargo-maven2-plugin</artifactId>
<dependencies>
<dependency>
<groupId>org.jboss.as</groupId>
<artifactId>jboss-as-controller-client</artifactId>
<version>7.1.0.Final</version>
</dependency>
</dependencies>
<configuration>
<!-- Container configuration -->
<container>
<timeout>300000</timeout> <!-- 5 minutes -->
<containerId>jboss71x</containerId>
<type>remote</type>
</container>
<!-- Configuration to use with the container -->
<configuration>
<type>runtime</type>
<properties>
<cargo.hostname><myIP></cargo.hostname>
<cargo.jboss.management.port>9999</cargo.jboss.management.port>
<cargo.remote.username><myUser></cargo.remote.username>
<cargo.remote.password><myPass></cargo.remote.password>
</properties>
</configuration>
<!-- Deployer configuration -->
<deployer>
<type>remote</type>
</deployer>
<!-- Deployables configuration -->
<deployables>
<deployable>
<groupId>de.<myGroup></groupId>
<artifactId><myArtifact></artifactId>
<type>war</type>
<pingURL>http://<myIP>:8080/<myContextPath></pingURL>
<pingTimeout>60000</pingTimeout>
</deployable>
</deployables>
</configuration>
</plugin>
...
Of course all variables of the form <my...> are filled out with the real values.
If I run this with the maven command:
mvn -X cargo:deploy
The maven console says:
...
Sep 12, 2012 5:06:12 PM org.xnio.nio.NioXnio <clinit>
INFO: XNIO NIO Implementation Version 3.0.3.GA
Sep 12, 2012 5:06:12 PM org.jboss.remoting3.EndpointImpl <clinit>
INFO: JBoss Remoting version 3.2.2.GA
[DEBUG] [swordCallbackHandler] Responded to a RealmCallback
[DEBUG] [swordCallbackHandler] Responded to a NameCallback
[DEBUG] [swordCallbackHandler] Responded to a PasswordCallback
[INFO] [Boss7xRemoteDeployer] The deployment has failed: org.codehaus.cargo.util.CargoException: Cannot deploy deployable org.codehaus.cargo.container.jboss.deployable.JBossWAR[myWar.war]
...
On the running JBoss server I can see a logging message in the console like this:
17:07:24,197 ERROR [org.jboss.remoting.remote.connection] (Remoting "pc09:MANAGEMENT" read-1) JBREM000200: Remote connection failed: java.io.IOException: Eine vorhandene Verbindung wurde vom Remotehost geschlossen.
(sorry for the german inside of the log. It basically says: An existing connection was closed by the remote host.)
Does anybody have an idea what could be wrong or how I could get more debug info from cargo to find out what exactly the problem is?
BTW: I have used the JBoss CLI access to that Jboss Server for Arquillian tests so I am pretty confident that the access to that Jboss server via CLI should be ok.
EDIT:
Seems like I have to undeploy first. To reassure that the access to the CLI works I just connected to it using the jboss-cli.bat. Then I just coincidentally undeployed the existing war and after that the deployment via cargo started to work.
(Can I close this question or mark it as resolved in any way?)