We are coming across many customers wanting to move their ASP.Net/VB applications to J2EE. The trend is distinct in Financial sector in general and Insurance industry in particular. Many of them are embracing WebSphere Portal, as the aggregation point of information and applications, for role based execution of business processes. The recently announced Mainsoft solution suits this purpose.
According to Forrester (http://www.mainsoft.com/solutions/pdfs/Forrester_Tech%20Choices.pdf). Choices span:
1. Web Services (loose coupling, application/component level integration)
2. Bridging Middleware
3. Extended J2EE PlatformsMainsoft, IBM business partner, has launched Visual Mainwin for J2EE Portal edition, enabling .Net applications to run natively on WebSphere Portal! (http:://www.mainsoft.com/news/press_releases/2006_05_31_01.aspx ). See the following Book: Manageability of Mixed Mode Systems excerpted from the Java EE .NET Interop book - http://www.ddj.com/185300352.
4. Language Integration (tight coupling, class/method level integration)
See the following article for more information on Mainsoft solution (http://www.mainsoft.com/solutions/pdfs/VMW_for_WebSphere.pdf