We are trying to upgrade from ICEfaces 1.5.0 to 1.5.1, and are having the same issue we had from ICEfaces 1.0.1 to 1.5.0.
Here is the process we followed:
1. While ICEfaces 1.5.0 is installed, uncheck (remove) the ICEfaces 1.5 project facet
2. Close Eclipse 3.2
3. Delete Eclipse entirely
4. Install Eclipse (unzip to folder)
5. Install Eclipse 1.5 WTP plugin (unzip to same folder as #4)
6. Install Rational ClearCase plugin (ICE fails even without this installed)
7. Install ICEfaces 1.5.1 Eclipse WTP plugin (ICEfaces-v1.5.1-Eclipse.zip) (unzip to same folder as #4)
8. Start Eclipse
9. From project properties, select "Project Facets" (img1.jpg)
10. Select "Add/Remove Project Facets..." button (img2.jpg)
11. At this point, please notice there is no JSF option available. We DO NOT have WTP-JSF installed
12. Select ICEfaces (1.5) and click "Next" button (img3.jpg)
13. Select Finish
14. This fails with a ConcurrentModificationException (img4.jpg)
Do you have any suggestions as to how we can upgrade our project from 1.5.0 to 1.5.1? We had to recreate our project from 1.0.1 to 1.5.0 and hopefully we don't have to recreate our project every time ICEfaces has a release.