I have an intercepting filter that rewrites a url and forwards to the url
(URLrewriter http://tuckey.org/urlrewrite/ )
wrk lik
/contact will be retwritten as /contacts.jsp and forwarded to the jsp. However
the jsp throws a very nice NPE. dont know. a little dig into the stripes
code reveals the execption on this line
// Assuming that the layout definition page is always included, the
following line gets
// the name of the page the tag is sitting on, as per Servlet 2.4 spec,
page 65.
String name = (String) getPageContext().getRequest()
.getAttribute('javax.servlet.include.servlet_path');
what can i do, to get round it. I have attached the stack trace
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_________________________________________________________________
http://clk.atdmt.com/UKM/go/msnnkmgl0010000002ukm/direct/01/Jul 2, 2008 8:04:53 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at
net.sourceforge.stripes.tag.layout.LayoutDefinitionTag.doStartTag(LayoutDefinitionTag.java:72)
at
org.apache.jsp.pb.contacts_005ftmpl_jsp._jspx_meth_s_005flayout_002ddefinition_005f0(contacts_005ftmpl_jsp.java:87)
at
org.apache.jsp.pb.contacts_005ftmpl_jsp._jspService(contacts_005ftmpl_jsp.java:64)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:557)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:481)
at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
at
org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:638)
at
org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:632)
at
net.sourceforge.stripes.tag.layout.LayoutRenderTag.doEndTag(LayoutRenderTag.java:113)
at
org.apache.jsp.pb.contacts_jsp._jspx_meth_s_005flayout_002drender_005f0(contacts_jsp.java:103)
at org.apache.jsp.pb.contacts_jsp._jspService(contacts_jsp.java:59)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
net.sourceforge.stripes.controller.StripesFilter.doFilter(StripesFilter.java:210)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
at
org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:195)
at
org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:159)
at
org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
at
org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
at
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Jul 2, 2008 8:04:53 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at
net.sourceforge.stripes.tag.layout.LayoutDefinitionTag.doStartTag(LayoutDefinitionTag.java:72)
at
org.apache.jsp.pb.contacts_005ftmpl_jsp._jspx_meth_s_005flayout_002ddefinition_005f0(contacts_005ftmpl_jsp.java:87)
at
org.apache.jsp.pb.contacts_005ftmpl_jsp._jspService(contacts_005ftmpl_jsp.java:64)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:557)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:481)
at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
at
org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:638)
at
org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:632)
at
net.sourceforge.stripes.tag.layout.LayoutRenderTag.doEndTag(LayoutRenderTag.java:113)
at
org.apache.jsp.pb.contacts_jsp._jspx_meth_s_005flayout_002drender_005f0(contacts_jsp.java:103)
at org.apache.jsp.pb.contacts_jsp._jspService(contacts_jsp.java:59)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
net.sourceforge.stripes.controller.StripesFilter.doFilter(StripesFilter.java:210)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
at
org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:195)
at
org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:159)
at
org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
at
org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
at
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Jul 2, 2008 8:04:53 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet default threw exception
java.lang.NullPointerException
at
net.sourceforge.stripes.tag.layout.LayoutDefinitionTag.doStartTag(LayoutDefinitionTag.java:72)
at
org.apache.jsp.pb.contacts_005ftmpl_jsp._jspx_meth_s_005flayout_002ddefinition_005f0(contacts_005ftmpl_jsp.java:87)
at
org.apache.jsp.pb.contacts_005ftmpl_jsp._jspService(contacts_005ftmpl_jsp.java:64)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:557)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:481)
at
org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:968)
at
org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:638)
at
org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:632)
at
net.sourceforge.stripes.tag.layout.LayoutRenderTag.doEndTag(LayoutRenderTag.java:113)
at
org.apache.jsp.pb.contacts_jsp._jspx_meth_s_005flayout_002drender_005f0(contacts_jsp.java:103)
at org.apache.jsp.pb.contacts_jsp._jspService(contacts_jsp.java:59)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
net.sourceforge.stripes.controller.StripesFilter.doFilter(StripesFilter.java:210)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
at
org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:195)
at
org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:159)
at
org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
at
org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
at
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
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