Spring Roo GWT application works in dev mode but not in production

Problem

A spring roo gwt application works in dev mode (mvn gwt:run) but not works in production mode (mvn tomcat:run or mvn jetty:run). When trying the late it shows a page with a rectangle with the message loading inside.

Reason

Solution

Assuming that the project is the sample that comes with roo expenses.roo. In STS (Spring Source Tool Suite):

• Edit the project properties
• Select Deployment Assembly
• Click Add
• Select Folder
• Select target/extrack-0.1.0.BUILD-SNAPSHOT (or whatever your version is)
• Click Finish
• Right click on the project or the pom.xml
• Select Run As -> Maven assembly:assembly
• App should re-deploy to the server

This solution was originally posted here: http://forum.springsource.org/showthread.php?106292-Problem-with-expenses.roo-sample-and-STS-2.6.0