[ http://issues.apache.org/jira/browse/BEEHIVE-830?page=all ]
Rich Feit resolved BEEHIVE-830:
-------------------------------
Fix Version: V1
Resolution: Fixed
With revision 191747 I've added a version of getCurrentActionResolver that
accepts the ServletContext as an argument. You won't see the NPE if you call
this method.
> NullPointerException when calling
> PageFlowUtils.getCurrentActionResolver(request)
> ---------------------------------------------------------------------------------
>
> Key: BEEHIVE-830
> URL: http://issues.apache.org/jira/browse/BEEHIVE-830
> Project: Beehive
> Type: Bug
> Components: NetUI
> Versions: v1m1
> Environment: Windows
> Reporter: Xibin Zeng
> Fix For: V1
>
> Calling the following code snippet from a jsp:
> <%
> request.getSession().invalidate();
> Object o =
> org.apache.beehive.netui.pageflow.PageFlowUtils.getCurrentActionResolver(request);
> System.out.println ("ActionResolver is " + o);
> %>
> Yield the following result:
> HTTP Status 500 -
> type Exception report
> message
> description The server encountered an internal error () that prevented it
> from fulfilling this request.
> exception
> org.apache.jasper.JasperException
>
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:372)
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> root cause
> java.lang.NullPointerException
> org.apache.beehive.netui.pageflow.handler.Handlers.get(Handlers.java:61)
>
> org.apache.beehive.netui.pageflow.PageFlowUtils.getCurrentActionResolver(PageFlowUtils.java:251)
> org.apache.jsp.hello.hello_jsp._jspService(hello_jsp.java:99)
> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
> javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> note The full stack trace of the root cause is available in the Apache
> Tomcat/5.0.28 logs.
> This is due to internally how Beehive obtain ServletContext through a
> HttpServletRequest. The solution seems to be to let calling code supply the
> ServletContext object rather than trying to manage it in the Beehive code.
> Client should call the version that takes a ServletContext whenever possible.
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