Existing Spring Application to Cloud Foundry

We are planning to move a Spring based application to Cloud Foundry. The application currently uses WAS server and access data sources using JNDI lookup. We are using spring features like MVC, AOP etc. I have certain questions in mind :

1. Is it possible to switch to Tomcat and configure dataSources using Spring-cloud-connectors and possible conflicts we might run into ?
2. Currently , datasources are configured in XML files, Should I use the same XML files or switch to annotations.

Can anyone please provide some clarity over this and other known issues with this approach?

Spring Cloud Connectors are by far the easiest way to bind to data sources in Cloud Foundry. I would recommend converting your JNDI lookups to use these service connections as described here:

http://docs.cloudfoundry.org/buildpacks/java/spring-service-bindings.html