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https://issues.apache.org/struts/browse/WW-3164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nils-Helge Garli resolved WW-3164.
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Resolution: Fixed
Fix Version/s: 2.1.8
Assignee: Nils-Helge Garli
Fixed in trunk. You can fetch the source and test it. I did encounter some
other issues with your sample app, but it should not be related to the original
issue.
> 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
> Assignee: Nils-Helge Garli
> Fix For: 2.1.8
>
> Attachments: Struts2PortletExample.zip, StrutsExample.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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