Hi Gurus,
In my application I'm using Struts2.0.1 framework. I have a
Request Filter, which is supposed to redirect all URLs except a few to a JSP
page(lets call it AccessDeniedPage.jsp) which is mentioned as the init-param of
the RequestFilter. But when the filter gets any prohibited URL it successfully
forwards the request to the AccessDeniedPage.jsp but most of the times shows
this stack-related NPE while rendering the AccessDeniedPage.jsp instead of the
intended page .
[u][b]exception[/b][/u]
org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:370)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.anshin.repro.enterprise.publisher.ui.filter.RequestFilter.authorizationFailure(RequestFilter.java:118)
com.anshin.repro.enterprise.publisher.ui.filter.RequestFilter.doFilter(RequestFilter.java:94)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
[u][b]root cause[/b][/u]
java.lang.NullPointerException
org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:55)
org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:51)
org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:42)
org.apache.jsp.expired_jsp._jspx_meth_s_form_0(org.apache.jsp.expired_jsp:187)
org.apache.jsp.expired_jsp._jspService(org.apache.jsp.expired_jsp:135)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.anshin.repro.enterprise.publisher.ui.filter.RequestFilter.authorizationFailure(RequestFilter.java:118)
com.anshin.repro.enterprise.publisher.ui.filter.RequestFilter.doFilter(RequestFilter.java:94)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
=============
Is this is a struts2-bug ? If not what could be the solution ?
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