Steps to reproduce:

• create a JSF KickStart project
• start the JBoss AS and verify that the application runs correctly
• right-click the name property and call Refactor>Rename
• rename the property to name1, check "Update References", "Rename getter ...", "Rename setter ..."
• click OK

You will get a NPE (attached is RefactorRename.log).
After fixing the NPE (the fix is trivial; the NPE was introduced a few days ago), you will face the following issues:

• the GWT Rename participants fail and are disabled (this is not a JBT problem; attached is GWTRefactorRename.log)
• hello.jsp and inputUserName.jsp contain the user.name11 value.

The problem can't be reproduced in JBDS 4.0.0.Beta1.
The problem can be reproduced using the JBT trunk with and without GWT plugins.