1) create a bean with a property
2) in a JSP page declare the bean: <jsp:useBean class="beans.Bean" id="b"/>
3) use it: <jsp:setProperty name="b" property="|" value="test"/>
4) if you invoke the completion on the pipe position, the bean properties are not offered
5) restart netbeans
6) repeat #4 => property is offered
7) add a new property to the bean
8) repeat #4 => the new property is offered.

The problem doesn't look like a parser failure since the expression language completion properly offers the modified
bean propertis just after you do that. Try to type: {b.|} + CC after step #2 or #7.