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https://issues.apache.org/jira/browse/WW-4772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15942885#comment-15942885
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Lukasz Lenart commented on WW-4772:
-----------------------------------

Thanks for the summary but I think the same is documented here 
https://struts.apache.org/docs/convention-plugin.html

> Convention Plugin can't use ${message}
> --------------------------------------
>
>                 Key: WW-4772
>                 URL: https://issues.apache.org/jira/browse/WW-4772
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Plugin - Convention
>    Affects Versions: 2.5.10
>         Environment: Windows10+JDK7.0_80+tomcat7.0.76
>            Reporter: fairy
>            Assignee: Lukasz Lenart
>              Labels: easyfix
>             Fix For: 2.5.next
>
>         Attachments: struts2-007-Convention-Plugin-HaveActionCode.zip
>
>
> today i fount the plugin maybe have an issue.
> {code}
> public class HelloWorldAction extends ActionSupport {
>       private String message;
>       public String getMessage() {
>               return message;
>       }
>       public void setMessage(String message) {
>               this.message = message;
>       }
>       public String execute() {
>               message = "Hello World, I come from Action Code";
>               return SUCCESS;
>       }
> }
> {code}
> HelloWorld.jsp
> {code}
>  This is  ${message}   // the message is null and the action can't be called.
> {code}



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