Something's not matching up properly. The code below is for the very first
<c:set> in the JSP code you posted, setting the "statesxml" variable. That
doesn't correspond to the stack trace, since there's no XPath usage in
that JSP code at all.
Let's see if we can eliminate - or point the finger at - Tiles. Can you
try accessing the page using a <jsp:include> from another page, and see
what happens? I believe all Tiles is doing internally is an include (using
PageContext.include()), so this might provide some illumination (or not!).
--
Martin Cooper
On Fri, 30 Jan 2004 [EMAIL PROTECTED] wrote:
> Here is the entire function from the compiled JSP 769-800
>
> private boolean _jspx_meth_c_set_12(javax.servlet.jsp.tagext.JspTag
> _jspx_th_c_if_7, PageContext pageContext)
> throws Throwable {
> JspWriter out = pageContext.getOut();
> // c:set
> org.apache.taglibs.standard.tag.rt.core.SetTag _jspx_th_c_set_12 =
> (org.apache.taglibs.standard.tag.rt.core.SetTag)
> _jspx_tagPool_c_set_var.get(org.apache.taglibs.standard.tag.rt.core.SetTag.c
> lass);
> _jspx_th_c_set_12.setPageContext(pageContext);
> _jspx_th_c_set_12.setParent((javax.servlet.jsp.tagext.Tag)
> _jspx_th_c_if_7);
> _jspx_th_c_set_12.setVar("statesxml");
> int _jspx_eval_c_set_12 = _jspx_th_c_set_12.doStartTag();
> if (_jspx_eval_c_set_12 != javax.servlet.jsp.tagext.Tag.SKIP_BODY) {
> if (_jspx_eval_c_set_12 !=
> javax.servlet.jsp.tagext.Tag.EVAL_BODY_INCLUDE) {
> out = pageContext.pushBody();
>
> _jspx_th_c_set_12.setBodyContent((javax.servlet.jsp.tagext.BodyContent)
> out);
> _jspx_th_c_set_12.doInitBody();
> }
> do {
> out.write("\r\n\t\t");
> if (_jspx_meth_c_out_1(_jspx_th_c_set_12, pageContext))
> return true;
> out.write("\t\t\r\n\t");
> int evalDoAfterBody = _jspx_th_c_set_12.doAfterBody();
> if (evalDoAfterBody !=
> javax.servlet.jsp.tagext.BodyTag.EVAL_BODY_AGAIN)
> break;
> } while (true);
> if (_jspx_eval_c_set_12 !=
> javax.servlet.jsp.tagext.Tag.EVAL_BODY_INCLUDE)
> out = pageContext.popBody();
> }
> if (_jspx_th_c_set_12.doEndTag() ==
> javax.servlet.jsp.tagext.Tag.SKIP_PAGE)
> return true;
> _jspx_tagPool_c_set_var.reuse(_jspx_th_c_set_12);
> return false;
> }
>
> -----Original Message-----
> From: Kris Schneider [mailto:[EMAIL PROTECTED]
> Sent: Friday, January 30, 2004 2:07 PM
> To: Tag Libraries Users List
> Subject: RE: tiles breaks x:forEach
>
>
> Well, I'm not sure this is helping you any, but I'm curious to see where it
> leads ;-). I wish I knew a bit more about Tiles internals, I haven't really
> used
> it all that much. Anyway, the stack trace is still making me scratch my head
> (order of execution):
>
> JobSearch_jsp._jspx_meth_c_set_10(JobSearch_jsp.java:769)
> JobSearch_jsp._jspx_meth_x_out_0(JobSearch_jsp.java:793)
> ...
> XPathUtil$JstlVariableContext.getVariableValue
> XPathUtil$JstlVariableContext.notNull
>
> and the exception is thrown with message:
>
> $prefix:javax.servlet.forward.request_uri
>
> Which, AFAICT, means getVariableValue was trying to do something like:
>
> return
> notNull(pageContext.findAttribute("javax.servlet.forward.request_uri"),
> null,
> "javax.servlet.forward.request_uri");
>
> Can you correlate lines 769 and 793 of the generated code with
> JobSearch.jsp?
>
> Huh, there seems to be a bug in the 1.1.0-B1 version of XPathUtil.
> JstlVariableContext.notNull essentially looks like:
>
> private Object notNull(Object o,
> String prefix,
> String localName) throws UnresolvableException {
> if (o == null) {
> throw new UnresolvableException("$" +
> (prefix==null?"":"prefix"+":") +
> localName);
> }
> return o;
> }
>
> Which means that instead of seeing the *value* of prefix in the exception
> message (when it's non-null), you'll see the literal "prefix". So it should
> probably be:
>
> private Object notNull(Object o,
> String prefix,
> String localName) throws UnresolvableException {
> if (o == null) {
> throw new UnresolvableException("$" +
> (prefix==null?"":prefix+":") +
> localName);
> }
> return o;
> }
>
> Obviously, that shouldn't be impacting your app at all, but you never know
> what
> you'll find when you go rooting through code...
>
> Quoting [EMAIL PROTECTED]:
>
> > I'll take that into consideration but it doesn't solve the problem
> > of the forEach and out tags failing. I really need to be able to
> > to use these tags to select into an xml source for other reasons
> > besides building options for a select.
> >
> > In ongoing research into this an x:parse fails with the same exception
> > on another page. Again if I change my struts action to directly
> > reference the jsp it works instead of a tile definition.
> >
> > So I tried one step further and tried two different tiles definitions.
> > One that referenced the pages directly and one that uses a tiles:insert
> > The tiles:insert version fails the same way and the tiles definition that
> > directly references the jsp works fine.
> >
> >
> >
> > *** this is layout.jsp
> > <%@ page language="java" %>
> > <%@ taglib uri="/WEB-INF/tld/struts-tiles.tld" prefix="tiles" %>
> > <tiles:insert attribute="body-content" ignore="true" />
> >
> >
> > <definition name=".main" path="/WEB-INF/layout/layout.jsp">
> > <put name="body-content" value="/WEB-INF/pages/body.jsp"/>
> > </definition>
> >
> > *** this definition causes the jsp to fail
> > <definition name=".main.js.jobsearch" extends=".main">
> > <put name="title" value="Job Search" />
> > <put name="body-content" value="/WEB-INF/pages/JobSearch.jsp" />
> > </definition>
> >
> > *** this definition works
> > <definition name=".main.js.jobsearch"
> > path="/WEB-INF/pages/JobSearch.jsp" >
> > </definition>
> >
> >
> > -----Original Message-----
> > From: Kris Schneider [mailto:[EMAIL PROTECTED]
> > Sent: Friday, January 30, 2004 12:15 PM
> > To: Tag Libraries Users List
> > Subject: RE: tiles breaks x:forEach
> >
> >
> > I'm not sure I'm interpreting the exception properly, but it looks like
> > JSTL
> > is
> > trying to resolve javax.servlet.forward.request_uri as an XPath variable
> > and
> > found it was null. It's as if you tried to do something like:
> >
> > <c:set ...>
> > <x:out select="$javax.servlet.forward.request_uri..."/>
> > </c:set>
> >
> > For the example you've given, it seems more like a job for XSLT (transform
> > a
> > state into an option):
> >
> > <x:parse doc="${applicationScope['domain.states']}" var="statedom"/>
> > <c:import url="/WEB-INF/xslt/stateoptions.xsl" var="xslt"/>
> > <x:transform doc="${statedom}" xslt="${xslt}" var="stateoptions"/>
> >
> > Of course, you'd have to create stateoptions.xsl...
> >
> > Quoting [EMAIL PROTECTED]:
> >
> > > <c:set var="statesxml" >
> > > <c:out escapeXml="false"
> > > value="${applicationScope['domain.states']}" />
> > > </c:set>
> > >
> > > <x:parse xml="${statesxml}" var="statedom" />
> > >
> > > <c:set var="stateoptions" >
> > > <option value="" >-Choose-</option>
> > > <x:forEach var="statenode" select="$statedom//states" >
> > > <option value="<x:out select="$statenode/@state" />"
> > > >
> > > <x:out select="./text()" />
> > > </option>
> > > </x:forEach>
> > > </c:set>
> > >
> > > Using jdk1.4.2_03, tomcat 5.0.16, struts 1.1 and commons jstl taglib
> > > 1.1.0-B1
> > >
> > > Mind you, this code works when not in a tile. The rest of the page works
> > in
> > > a
> > > tile if I comment out the x:forEach's and x:out's; the x:parse seems to
> > > work
> > > ok.
> > >
> > > Thanks
> > >
> > > -----Original Message-----
> > > From: Martin Cooper [mailto:[EMAIL PROTECTED]
> > > Sent: Thursday, January 29, 2004 4:52 PM
> > > To: Tag Libraries Users List
> > > Subject: Re: tiles breaks x:forEach
> > >
> > >
> > > It might help if you could show us the offending JSP code. ;-)
> > >
> > > --
> > > Martin Cooper
> > >
> > >
> > > On Thu, 29 Jan 2004 [EMAIL PROTECTED] wrote:
> > >
> > > > Anyone else run into a similiar situation.
> > > >
> > > > I have a page that was running fine parsing and looping
> > > > through xml data.
> > > >
> > > > I try to incorporate this page as a tile and on my first
> > > > x:forEach statement I get:
> > > >
> > > > [ServletException in:/WEB-INF/pages/JobSearch.jsp]
> > > > $prefix:javax.servlet.forward.request_uri'
> > > >
> > > > and the exception in the tomcat log is:
> > > > 2004-01-29 14:31:05 ApplicationDispatcher[/employer] Servlet.service()
> > > for
> > > > servlet jsp threw exception
> > > > org.apache.taglibs.standard.tag.common.xml.UnresolvableException:
> > > > $prefix:javax.servlet.forward.request_uri
> > > > at
> > > >
> > >
> >
> org.apache.taglibs.standard.tag.common.xml.XPathUtil$JstlVariableContext.not
> > > > Null(Unknown Source)
> > > > at
> > > >
> > >
> >
> org.apache.taglibs.standard.tag.common.xml.XPathUtil$JstlVariableContext.get
> > > > VariableValue(Unknown Source)
> > > > at
> > > >
> > >
> >
> org.apache.taglibs.standard.tag.common.xml.XPathUtil$JstlVariableContext.get
> > > > VariableOrParam(Unknown Source)
> > > > at
> > > >
> > org.apache.taglibs.standard.tag.common.xml.XPathUtil.fillVarStack(Unknown
> > > > Source)
> > > > at
> > > > org.apache.taglibs.standard.tag.common.xml.XPathUtil.valueOf(Unknown
> > > Source)
> > > > at
> > > >
> > org.apache.taglibs.standard.tag.common.xml.ExprSupport.doStartTag(Unknown
> > > > Source)
> > > > at
> > > >
> > >
> >
> org.apache.jsp.WEB_002dINF.pages.JobSearch_jsp._jspx_meth_x_out_0(JobSearch_
> > > > jsp.java:793)
> > > > at
> > > >
> > >
> >
> org.apache.jsp.WEB_002dINF.pages.JobSearch_jsp._jspx_meth_c_set_10(JobSearch
> > > > _jsp.java:769)
> > > > at
> > > >
> > >
> >
> org.apache.jsp.WEB_002dINF.pages.JobSearch_jsp._jspService(JobSearch_jsp.jav
> > > > a:168)
> > > > at
> > > > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> > > > at
> > > >
> > >
> >
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3
> > > > 11)
> > > > at
> > > >
> > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
> > > > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> > > > FilterChain.java:284)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> > > > ain.java:204)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
> > > > java:742)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatch
> > > > er.java:630)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher
> > > > .java:542)
> > > > at
> > > >
> > >
> >
> org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:1
> > > > 002)
> > > > at
> > > >
> > >
> >
> org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:626)
> > > > at
> > > >
> org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:137)
> > > > at org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:177)
> > > > at
> > > > org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:756)
> > > > at
> > > >
> > >
> >
> org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.ja
> > > > va:881)
> > > > at
> > > > org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:473)
> > > > at
> > > >
> > >
> >
> org.apache.jsp.WEB_002dINF.layout.layout_jsp._jspx_meth_tiles_insert_2(layou
> > > > t_jsp.java:174)
> > > > at
> > > >
> > >
> >
> org.apache.jsp.WEB_002dINF.layout.layout_jsp._jspService(layout_jsp.java:75)
> > > > at
> > > > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> > > > at
> > > >
> > >
> >
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3
> > > > 11)
> > > > at
> > > >
> > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
> > > > at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> > > > FilterChain.java:284)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> > > > ain.java:204)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
> > > > java:742)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDis
> > > > patcher.java:506)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatch
> > > > er.java:443)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher
> > > > .java:359)
> > > > at
> > > >
> > >
> >
> org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:10
> > > > 69)
> > > > at
> > > >
> > >
> >
> org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcesso
> > > > r.java:274)
> > > > at
> > > >
> > >
> >
> org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRe
> > > > questProcessor.java:254)
> > > > at
> > > >
> > >
> >
> org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequ
> > > > estProcessor.java:309)
> > > > at
> > > >
> > >
> >
> org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
> > > > at
> > > >
> org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
> > > > at
> > > > org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> > > > FilterChain.java:284)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> > > > ain.java:204)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> > > > va:256)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> > > > t.java:151)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContext
> > > > Valve.java:245)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
> > > > va:199)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> > > > t.java:151)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:195
> > > > )
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> > > > t.java:151)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164
> > > > )
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> > > > t.java:149)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
> > > > :156)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> > > > t.java:151)
> > > > at
> > > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:564)
> > > > at
> > > > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)
> > > > at
> > > >
> org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
> > > > at
> > > >
> > >
> > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:805)
> > > > at
> > > >
> > >
> >
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
> > > > ction(Http11Protocol.java:696)
> > > > at
> > > >
> > >
> > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
> > > > at
> > > >
> > >
> >
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
> > > > a:677)
> > > > at java.lang.Thread.run(Thread.java:534)
> >
> > --
> > Kris Schneider <mailto:[EMAIL PROTECTED]>
> > D.O.Tech <http://www.dotech.com/>
>
>
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