There is a way to add icefaces capability to an existing web project by adding ICEfaces facet. But since Eclipse 3.4, it is broken and any library added after the project is created won't be deployed. I am not sure this is an issue with Eclipse WTP or an issue for ICEfaces only.

There is no problem for libraries added at the time of creating new project. But if libraries is being added to existing project, these libraries won't deployed.

After investigation, it is obvious that current library validation logic (such as checking added libraries and automatic adding ICEfaces libraries/setting deplyment flag if none is added) is broken due to changes in Ganymede. Of couse it is partially because I uses some internal interfaces to workaround Eclipse library registry framework.

Resolution to it would be removed the validation logic and prompt user for lack of required ICEfaces library.

Note that current JSF library registry framework will be deprecated and replaced by all new Library Provider Framework in Galileo release.