Resource model validity issue.
Covers various model issues, such as duplicate URI templates, duplicate HTTP method annotations, etc.
The model issues can be either fatal warnings or hings (see {@link #getSeverity()}). While the non-fatal issues are merely reported as warnings in the log, the fatal issues prevent the successful application deployment.
@author Jakub Podlesak (jakub.podlesak at oracle.com)
@author Marek Potociar (marek.potociar at oracle.com)