I have a project created to use the VW IceFaces framework of NetBeans 6.5 and I see a problem where the VW page fails to render after reopening the project in Netbeans. I get a "PropertyNotFound" exception reported for any components that have a data binding back to the SessionBean. This is very confusing because the page had been working fine and then when NetBeans is required to reload it (either after reopening the project or even after reopening the JSP file) it fails with this exception. Clicking on the "Bind to Data..." menu item fails to list the SessionBean (and its attributes) under the list of available binding targets.
The only way I have found to recover the situation is to remove all the binding variables from the SessionBean and add them back one by one. Of course this is not a sustainable development process! What is happening to the SessionBean?