[WW-3770] NullPointerException instead of "There is no Action mapped for namespace..." (regression?)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 2.3.1.2
• Fix Version/s: 2.3.3
• Component/s: Core Actions
• Assignee: Lukasz Lenart
• Reporter: Antoine W
• Created: 07/Mar/12 15:45
• Updated: 14/Apr/12 06:59
• Resolved: 03/Apr/12 18:36

Description

After upgrading to Struts 2.3.1.2, we get a Nullpointer when trying to access an undefined action (in example, /badurl.do) - see complete stack below.
This is because ServletActionContext.getRequest() is NULL when getErrorMessage() gets called.
This is a major issue because it prevents 404 error to be handled correctly and it affects several websites (just Google for "org.apache.struts2.impl.StrutsActionProxy.getErrorMessage(StrutsActionProxy.java:69)")

Edit: maybe is it due to the fact I'm using deprecated FilterDispatcher...

java.lang.NullPointerException
org.apache.struts2.impl.StrutsActionProxy.getErrorMessage(StrutsActionProxy.java:69)
com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:185)
org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:63)
org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:500)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:434)
[my filter extends FilterDispatcher]
com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:102)