Yes, struts taglibs are the problem.
But if I make the opposite, i.e. excluding the x:tags,
the code works as well, so I assume that Struts stuff
is properly configured...
I don't know what to think...
Ric
--- MK Tan <[EMAIL PROTECTED]> ha scritto:
> look like struts taglibs cause the NPE. unknown
> property name?
>
>
> On 9/7/07, Riccardo Mollame <[EMAIL PROTECTED]>
> wrote:
> >
> > Could any one explain why this piece of code works
> > fine:
> >
> > <%@ taglib prefix="c"
> > uri="http://java.sun.com/jsp/jstl/core"%>
> > <%@ taglib prefix="x"
> > uri="http://java.sun.com/jsp/jstl/xml"%>
> > <%@ taglib prefix="s" uri="/struts-tags"%>
> > <c:import url="/WEB-INF/classes/PageList.xml"
> > var="pagelist" scope="application" />
> > <x:parse var="document" doc="${pagelist}"/>
> > <html>
> > <head>
> > </head>
> > <body>
> > <br>
> > <h1><x:out
> >
>
select="$document/pages/[EMAIL PROTECTED]'P001']/title"/></h1>
> > </body>
> > </html>
> >
> > while this one:
> >
> > <%@ taglib prefix="c"
> > uri="http://java.sun.com/jsp/jstl/core"%>
> > <%@ taglib prefix="x"
> > uri="http://java.sun.com/jsp/jstl/xml"%>
> > <%@ taglib prefix="s" uri="/struts-tags"%>
> > <c:import url="/WEB-INF/classes/PageList.xml"
> > var="pagelist" scope="application" />
> > <x:parse var="document" doc="${pagelist}"/>
> > <html>
> > <head>
> > </head>
> > <body>
> > <br>
> > <center>
> > <!-- BEGIN of new code -->
> > <s:form action="userauth">
> > <s:textfield label="User Name"
> key="username"/>
> > <s:password label="Password"
> key="password"/>
> > <s:submit/>
> > </s:form>
> > <!-- END of new code -->
> > </center>
> > </body>
> > </html>
> >
> > gives the following error:
> >
> > XXXX-web-main: Servlet error
> > java.lang.NullPointerException
> > at
> >
>
org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:58)
> >
> > at
> >
>
org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(
> > StrutsBodyTagSupport.java:52)
> >
> > at
> >
>
org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(
> > ComponentTagSupport.java:49)
> >
> > at _jsps._Login._jspService(_Login.java:103)
> > at com.orionserver[Oracle Containers for J2EE
> 10g
> > (10.1.3.3.0)
> >
>
].http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)
> >
> > at
> >
>
oracle.jsp.runtimev2.JspPageTable.compileAndServe(JspPageTable.java:724)
> >
> > at
> >
>
oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:414)
> >
> > at
> >
>
oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)
> >
> > at
> >
>
oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)
> >
> > at
> >
>
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
> >
> > at com.evermind[Oracle Containers for J2EE 10g
> > (10.1.3.3.0)
> >
>
].server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java
> > :65)
> > at
> >
>
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(
> > FilterDispatcher.java:413)
> >
> > at com.evermind[Oracle Containers for J2EE 10g
> > (10.1.3.3.0)
> >
>
].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher
> > .java:623)
> > at com.evermind[Oracle Containers for J2EE 10g
> > (10.1.3.3.0)
> >
> >
>
].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher
> > .java:370)
> > at com.evermind[Oracle Containers for J2EE 10g
> > (10.1.3.3.0)
> >
>
].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler
> > .java:871)
> > at com.evermind[Oracle Containers for J2EE 10g
> > (10.1.3.3.0)
> >
>
].server.http.HttpRequestHandler.processRequest(HttpRequestHandler
> > .java:453)
> > at com.evermind[Oracle Containers for J2EE 10g
> > (10.1.3.3.0)
> >
>
].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler
> > .java:221)
> > at com.evermind[Oracle Containers for J2EE 10g
> > (10.1.3.3.0)
> >
>
].server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
> >
> > at com.evermind[Oracle Containers for J2EE 10g
> > (10.1.3.3.0)
> >
>
].server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
> >
> > at
> >
>
oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(
> > ServerSocketReadHandler.java:260)
> >
> > at
> >
>
oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(
> > ServerSocketAcceptHandler.java:239)
> >
> > at
> >
>
oracle.oc4j.network.ServerSocketAcceptHandler.access$700(
> > ServerSocketAcceptHandler.java:34)
> >
> > at
> >
>
oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(
> > ServerSocketAcceptHandler.java:880)
> >
> > at com.evermind[Oracle Containers for J2EE 10g
> > (10.1.3.3.0)
> >
> >
>
].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor
> > .java:303)
> > at java.lang.Thread.run(Thread.java:595)
> >
> >
> > I'm stuck. It has no explanation to me.
> > Any help deeply appreciated.
> > Thanks in advance.
> >
> > Ric
> >
> >
> > ___________________________________
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