Pluto 1.0.1 and web-app 2.4

I wanted to get started on using WSRP by the WSRP4J project at apache , and has ended up in non-productive try and fails and google searches. Long story short, to get started WSRP4J doesn't have a binary to start with and therefore i had to use it from the svn repo, to find out that it uses Maven, which i havn't used before. I did get it running after some time, and then i wanted to tryit on my own portlets. I've tried the 1.1 beta branch of Pluto, but WSRP4J still uses Pluto 1.0.1, and for days i've been hassling to get i running. Logging/debugging in Tomcat 5.5/6.0 still puzzles me (worth and entry of it's own) but the last piece that i've got working was after endless log entries like

Feb 25, 2007 12:34:26 PM org.apache.pluto.portalImpl.services.log.LoggerImpl error
SEVERE: Error in Portlet
java.lang.NullPointerException
   at org.apache.pluto.invoker.impl.PortletInvokerImpl.invoke(PortletInvokerImpl.java:109)
   at org.apache.pluto.invoker.impl.PortletInvokerImpl.load(PortletInvokerImpl.java:80)
   at org.apache.pluto.PortletContainerImpl.portletLoad(PortletContainerImpl.java:218)
   at org.apache.pluto.portalImpl.core.PortletContainerWrapperImpl.portletLoad(PortletContainerWrapperImpl.java:94)
   at org.apache.pluto.portalImpl.aggregation.PortletFragment.service(PortletFragment.java:120)
   at org.apache.jsp.WEB_002dINF.aggregation.ColumnFragment_jsp._jspService(ColumnFragment_jsp.java:76)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
   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:687)
   at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:590)
   at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:505)
   at org.apache.pluto.portalImpl.aggregation.AbstractFragment.service(AbstractFragment.java:112)
   at org.apache.jsp.WEB_002dINF.aggregation.RowFragment_jsp._jspService(RowFragment_jsp.java:76)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
   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:687)
   at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:590)
   at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:505)
   at org.apache.pluto.portalImpl.aggregation.AbstractFragment.service(AbstractFragment.java:112)
   at org.apache.jsp.WEB_002dINF.aggregation.PageFragment_jsp._jspService(PageFragment_jsp.java:85)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
   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:687)
   at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:590)
   at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:505)
   at org.apache.pluto.portalImpl.aggregation.AbstractFragment.service(AbstractFragment.java:112)
   at org.apache.jsp.WEB_002dINF.aggregation.RootFragment_jsp._jspService(RootFragment_jsp.java:147)
   at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
   at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
   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:687)
   at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:590)
   at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:505)
   at org.apache.pluto.portalImpl.aggregation.AbstractFragment.service(AbstractFragment.java:112)
   at org.apache.pluto.portalImpl.Servlet.doGet(Servlet.java:254)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
   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.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
   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:104)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:212)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
   at java.lang.Thread.run(Thread.java:595)

I had an idea that web-app versions might be a problem, and had it running when i changed to version 2.3, I then changed it to 2.4 and redeployed and i still worked, but that was probably due to me lack of understanding on redeploying to tomcat. Any how it's also described in the mail archives (this from the google cache) Re: Supporting web.xml with 2.4 XSD The solution was to only put the version="2.4" attribute on the <web-app> tag and not the namespace information. Now I'll have to make sure everything else works without the namespace attributes. That's right for me as well. Now I'm not sure wether it'll actually run as a 2.4 web-app in tomcat, but time will show.