[WICKET-4380] Null url argument on missing static resource

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.5.3, 1.5.4
• Fix Version/s: 1.5.5, 6.0.0-beta1
• Component/s: wicket
• Environment: All tested (Jetty via Maven, deploy into Tomcat)
• Assignee: Emond Papegaaij
• Reporter: Mark Eschbach
• Created: 01/Feb/12 21:26
• Updated: 08/Feb/12 12:36
• Resolved: 08/Feb/12 12:36

Description

The WebExternalResourceStream doesn't check the return value of the ServletContext#getResource, which could be null. When the reference is given to the Connections#lastModified method this will cause a complaint several call layers down stating the URL argument may not be null. The null value is a result of the referenced static resource missing, thus the servlet container is correctly returning null (as per the Servlet spec).