[jira] Updated: (WW-3164) Using Struts 2.1.6 Portlet Plugin Causes NullPointerException When Executing A Normal Struts 2 Action

["Bruce Phillips (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/struts/browse/WW-3164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bruce Phillips updated WW-3164:
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    Attachment: Struts2PortletExample.zip

Unzip the attached project
In command window go to where you unzipped the project
execute mvn clean
execute mvn jetty:run
in web browser go to http://localhost:8080/StrutsPortletExample/index.html
Click on Add New Employee link

See rest of instructions for duplicating the error in main comment

> Using Struts 2.1.6 Portlet Plugin Causes NullPointerException When Executing A Normal Struts 2 Action
> -----------------------------------------------------------------------------------------------------
>
>                 Key: WW-3164
>                 URL: https://issues.apache.org/struts/browse/WW-3164
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Plugin - Portlet
>    Affects Versions: 2.1.6
>         Environment: Windows XP, JDK 6
>            Reporter: Bruce Phillips
>         Attachments: Struts2PortletExample.zip
>
>
> Created a Struts 2 web/portlet application with a pom.xml having a dependency on struts2-core-2.0.11.2.jar.  Works both as a normal web application and as a portlet application.
> Changed the dependencies to be struts2-core-2.1.6.jar and struts2-portlet-plugin-2.1.6.jar.  Running the application as a web application in Tomcat 6 or Jetty results in a org.apache.jasper.JasperException: java.lang.NullPointerException whenever a Struts 2 action is called.
> Removed the dependency on struts2-portlet-plugin-2.1.6.jar and the application runs fine as a normal Struts 2 web application. 
> You can download an archived Eclipse dynamic web project that uses maven here:
> http://www.brucephillips.name/struts/struts2portletexample.zip
> 1.  Unzip the project
> 2.  In a command window navigate to where you unzipped the project
> 3.  In the root folder for the project run mvn clean
> 4.  Then run mvn jetty:run
> 5.  Open your browser and go to http://localhost:8080/StrutsPortletExample/index.html
> 6.  click on the link for add new employee
> 7.  You'll get a NullPointerException
> 8.  Close Jetty by using Control C
> 9.  In the pom.xml file for the project comment out the dependency on Struts 2.1.6 Porlet Plugin
> 10.  In command window redo mvn clean and then mvn jetty:run
> 11.  Open your browser and go to http://localhost:8080/StrutsPortletExample/index.html
> 12.  click on the link for add new employee and the Struts 2 action will execute successfully and you'll get the add employee page
> In Struts 2.0.11 we were able to use both Struts 2 actions and a Struts 2 portlet in the same web application.  Trying to use the new Struts 2.1.6 Portlet Plugin causes an exception when user clicks on a normal struts 2 action link.
> Here is the first part of the Exception stack trace as reported by Struts 2:
> Struts Problem Report
> Struts has detected an unhandled exception:
> # Messages: 	java.lang.NullPointerException
> File: 	org/apache/struts2/components/UIBean.java
> Line number: 	792
> Stacktraces
> org.apache.jasper.JasperException: java.lang.NullPointerException
>     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:418)
>     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486)
>     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380)
>     javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
>     org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
>     org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:389)
>     org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
>     org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
>     org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
>     org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
>     org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:334)
>     org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
>     org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:154)

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