If no extension filter is configured in web.xml or if extension filter is misconfigured there are SILENT fails of inputFileUpload.
In my web.xml the extension filter is not configured, the file is not assigned but nothing is logged about this situation. In fact the method
public void setUploadedFile(UploadedFile file)
in my backing bean is silently skipped.
Is it possible to log some warning that help developpers in detecting this situation?