Struts2 ParametersInterceptor problem with oauth_token

Question

I am developing an application in Struts2 with Twitter4J at GAE/J.

I am getting following exception in the GAE log. Unable to understand whats wrong with it.

com.opensymphony.xwork2.interceptor.ParametersInterceptor setParameters: ParametersInterceptor - [setParameters]: Unexpected Exception caught setting 'oauth_token' on 'class com.action.Home: Error setting expression 'oauth_token' with value '[Ljava.lang.String;@146ac5a'

Following is my struts.xml

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd"&gt;
<struts>
<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<constant name="struts.devMode" value="false" />

<package name="hello" extends="struts-default" >
    <action name="Home"
        class="com.action.Home">
        <result name="SUCCESS">/home.jsp</result>
        <result name="ERROR">/message.jsp</result>
    </action>
</package>

Home.java code

Twitter twitter = new Twitter();

HttpSession session = request.getSession();

twitter.setOAuthConsumer(FFConstants.CONSUMER_KEY, FFConstants.CONSUMER_SECRET);
AccessToken accessToken = twitter.getOAuthAccessToken((String)session.getAttribute("token"), 
    (String)session.getAttribute("tokenSecret"));
twitter.setOAuthAccessToken(accessToken);

User user = twitter.verifyCredentials();

It will be great if some one give me pointer on it.

Thanks.

Answer 1

Does your HomeAction have a setter for oath_token?