[WW-3616] Error in the detail view of the REST Showcase

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2.3
• Fix Version/s: 2.3.1
• Component/s: Plugin - REST
• Assignee: Maurizio Cucchiara
• Reporter: Maurizio Cucchiara
• Due: 28/Apr/11
• Created: 28/Apr/11 10:04
• Updated: 08/Dec/11 19:54
• Resolved: 28/Apr/11 17:12

Description

Invoking the detail view page [1] throws the following exception:

org.apache.struts2.rest.DefaultHttpHeaders cannot be cast to
java.lang.String

RequestURI=/struts2-rest-showcase/orders/3
Caused by:

java.lang.ClassCastException: org.apache.struts2.rest.DefaultHttpHeaders
cannot be cast to java.lang.String
at
com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:462)
at
com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)
at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:100)
at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:100)

This happens cause the RestActionProxyFactory uses the root ("/") as default namespace and RestActionMapper maps this kind of action along the empty ("") namespace.

Adding the following xml code in the struts configuration file, could help (to be honest I don't know if there are any side effects).

<constant name="struts.rest.namespace" value=""/>

[1] http://localhost:8080/struts2-rest-showcase/orders/3