Exporting a GWT + Tomcat project to a standalone Android application. Is it possible?

Question

Android

Good afternoon. Briefly describe what is needed. There is a full-fledged WEB application in Java EE with libraries and a server part, which is converted to HTML / JS on the client side based on GWT (who is in the subject, explanations are superfluous). I want to transfer to a standalone application on Android. I don't know yet what the prospects are. I come across the idea of ​​using Cordova / Crosswalk as a browser, but I don’t understand what about the server part. Any ideas and is there a possibility?