I've been able to fix the problem by making a change to Pluto code - removing a call to writer.flush() in doEndTag() in BasicURLTag.java.
It seems to be a similar fix to that reported in: http://issues.apache.org/jira/browse/PLUTO-120?page=all I'm not sure that there aren't any other ramifications to this change. Does anyone know how I should proceed in trying to get this change committed (assuming of course that its a valid change). John --- John O'Reilly <[EMAIL PROTECTED]> wrote: > Hi Eric, > > Thanks for your reply. I actually have the > <portlet:renderURL/> inside a <a href> tag which in > turn is inside the <display:column>. The <a href> > on > its own works inside the <display:column> (for > example, when I used it in a non-portlet > environment). > If I put a <a href> with <portlet:renderURL> inside > it outside the table then it works find. This is > very > frustrating as much of the data I'm displaying (and > linking from) is inside displaytag tables. > > John > > > --- Eric Borisow <[EMAIL PROTECTED]> wrote: > > > John, > > > > I just had this same error but the solution wasn't > > related DisplayTag. In my case, I was putting the > > <portlet:renderURL/> tag inside of a <c:set > > var="blah"/> tag. > > > > So, I was trying to do this: > > > > <c:set var="renderUrl"> > > <portlet:renderURL/> > > </c:set> > > > > Apparently, you cannot do that. Once I just > removed > > the <portlet:renderURL/> tag and just put it right > > into my <a href> tag, it worked fine. > > > > Hope this helps. > > > > Thanks, > > Eric > > > > --- John O'Reilly <[EMAIL PROTECTED]> wrote: > > > > > This is the full stack trace. > > > > > > > > > Nested Exception is > > javax.servlet.jsp.JspException: > > > actionURL/renderURL Tag Exception: cannot write > to > > > the > > > output writer. > > > at > > > > > > org.apache.pluto.tags.BasicURLTag.doEndTag(BasicURLTag.java:85) > > > at > > > > > > org.apache.jsp.WEB_002dINF.jsp.portlet.tournaments_jsp._jspx_meth_portlet_renderURL_1(org.apache.jsp.WEB_002dINF.jsp.portlet.tournaments_jsp:457) > > > at > > > > > > org.apache.jsp.WEB_002dINF.jsp.portlet.tournaments_jsp._jspx_meth_display_column_9(org.apache.jsp.WEB_002dINF.jsp.portlet.tournaments_jsp:428) > > > at > > > > > > org.apache.jsp.WEB_002dINF.jsp.portlet.tournaments_jsp._jspService(org.apache.jsp.WEB_002dINF.jsp.portlet.tournaments_jsp:181) > > > at > > > > > > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) > > > at > > > > > > javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > > > at > > > > > > org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322) > > > at > > > > > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291) > > > at > > > > > > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) > > > at > > > > > > javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > > > at > > > > > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) > > > at > > > > > > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499) > > > at > > > > > > org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:105) > > > at > > > > > > org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250) > > > at > > > > > > org.springframework.web.servlet.ViewRendererServlet.renderView(ViewRendererServlet.java:111) > > > at > > > > > > org.springframework.web.servlet.ViewRendererServlet.processRequest(ViewRendererServlet.java:84) > > > at > > > > > > org.springframework.web.servlet.ViewRendererServlet.doGet(ViewRendererServlet.java:65) > > > at > > > > > > javax.servlet.http.HttpServlet.service(HttpServlet.java:689) > > > at > > > > > > javax.servlet.http.HttpServlet.service(HttpServlet.java:802) > > > at > > > > > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) > > > at > > > > > > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574) > > > at > > > > > > org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499) > > > at > > > > > > org.apache.pluto.core.impl.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:65) > > > at > > > > > > org.springframework.web.portlet.DispatcherPortlet.render(DispatcherPortlet.java:948) > > > at > > > > > > org.springframework.web.portlet.DispatcherPortlet.doRenderService(DispatcherPortlet.java:726) > > > at > > > > > > org.springframework.web.portlet.FrameworkPortlet.processRequest(FrameworkPortlet.java:420) > > > at > > > > > > org.springframework.web.portlet.FrameworkPortlet.doDispatch(FrameworkPortlet.java:391) > > > at > > > > > > javax.portlet.GenericPortlet.render(GenericPortlet.java:178) > > > at > > > > > > org.apache.pluto.core.PortletServlet.dispatch(PortletServlet.java:218) > > > at > > > > > > org.apache.pluto.core.PortletServlet.doGet(PortletServlet.java:158) > > > at > > > > > > javax.servlet.http.HttpServlet.service(HttpServlet.java:689) > > > at > > > > > > === message truncated === ___________________________________________________________ Win a BlackBerry device from O2 with Yahoo!. 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