Change the name of the application client so it is not myAppClient.jar. Specifically:
Edit myApp/META-INF/application.xml so that the declaration of the client is <java>myClient.jar</java>. Note that you can use any name other than myAppClient.jar.
Rename the directory myApp/myAppClient_jar to myApp/myClient_jar. Note that the client's subdirectory name must be the same as the application client URI in the application.xml file, with the .jar replaced with _jar.
Deploy the application:
asadmin deploy --retrieve localdir myApp |
Run the application client:
appclient -client localdir/myAppClient.jar |