1 New -> JSP File
Name: Test
Template: Blank
Next button
2 Select Taglibs:
JSF Core
JSF Html
3 JSP Editor will be opened
Set cursor after
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>

4 Call CA (ctrl+space)
5 Type "f"
6 Delete "f" using backspace
Unhandled event loop exception occur
Log attached