Deploying using Java Deployment - Very Urgent!!!

First of all, it looks like you are creating a new rule server instance each time before calling it. You should create an server instance only once and use it for all subsequent calls. With Spring you could define a bean from the Server class and specify Server.createServer() as a factory method in that bean's configuration.

As for the classloader issue, try locating the following parameter in your .server file and make sure it is set to true:

<UseDeploymentClassLoadingContext> true </UseDeploymentClassLoadingContext>