Reply To: Error while extracting values from backing bean

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#24302

The exception you are getting has a “caused by” block which will tell you more about the specific error. But Glassfish logging behaves a bit weird sometimes (or I simply don’t get how to configure it correctly). So perhaps you don’t get the “caused by” in the logs?

The exception is typically caused by one of the following problems:

(1) You are using a pretty:link or h:link to render a link to this mapping and the f:param for the path parameter refers to a null value. In the full stacktrace you will typically see one of the two components trying to render.

(2) You are navigating from an JSF action method by returning pretty:configadvancedserver. If at this point in time #{configadvancedserver.nodeLabel} is null, you will also get this exception.

I hope this helps a bit. You should try to get the full stacktrace and post it. If the log doesn’t expose the full stacktrace, you could also set a exception breakpoint or something like this.