The spreading of personal wireless devices (PWDs) has raised the need to port in this new environment existing (legacy) desktop applications. Unfortunately, these applications are often too large and resource demanding to be executed on devices with limited resources without changing existing code. Consequently, desktop applications should be decomposed in different components to distribute between a PWD and one or more servers. Although the refactoring could be performed by changing the code in order to use specific APIs for client/server computing, the changes could be tedious and time consuming. So, the paper presents an approach based on the thin client model implemented through a framework which enables the seamless migration of Java desktop applications to mobile devices with limited resources.