someone said to me that jsf is better to share information within context, but struts 1.1 can't. In JSR168, if we need to develop a portlet, share information in context is critical. so jsf is better option.
so what is share information within context ? Does that mean that different application deployed in the same container can share date ? Or what other means ?
I'm not sure to meet your question, but in my understanding you can use the BackingBeans to share information, if the scope is well-defined. And of course you've got the FacesContext to exchange information.
As far as i know, in portlet FacesContext will be able to share information within a portlet application and not between portlet application. to share data between different portlet application, you have use some other techniques like dynacache in ibm portal or any portal specific technology.