We have a financial application which is running successfully on struts 1.2 and java 1.4. Since this are old versions and obsoleted from market. We want to use latest version of struts 2.0. I want to know following things 1.what are the necessary precautions to be considered ? 2.Should i change the entire application i.e jsp's and action ? 3.What are the major components needs tobe changed in brief ?