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java.lang.NullPointerException: 	at org.apache.pluto.portalImpl.services.portletdefinitionregistry.PortletDefinitionRegistry.getPortletApplicationDefinitionList(PortletDefinitionRegistry.java:47)	at org.apache.pluto.portalImpl.om.entity.impl.PortletApplicationEntityImpl.getPortletApplicationDefinition(PortletApplicationEntityImpl.java:59)	at org.apache.pluto.portalImpl.om.entity.impl.PortletEntityImpl.getPortletDefinition(PortletEntityImpl.java:82)	at org.apache.wsrp4j.producer.provider.pluto.driver.DescriptionHandlerImpl.getProducerOfferedPortletDescriptions(DescriptionHandlerImpl.java:350)	at org.apache.wsrp4j.producer.provider.pluto.driver.DescriptionHandlerImpl.getServiceDescription(DescriptionHandlerImpl.java:209)	at org.apache.wsrp4j.producer.driver.WSRPEngine.getServiceDescription(WSRPEngine.java:244)	at oasis.names.tc.wsrp.v1.bind.WSRP_v1_ServiceDescription_Binding_SOAPImpl.getServiceDescription(WSRP_v1_ServiceDescription_Binding_SOAPImpl.java:39)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:585)	at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:376)	at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:278)	at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:290)	at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)	at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)	at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)	at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:481)	at org.apache.axis.server.AxisServer.invoke(AxisServer.java:285)	at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:623)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)	at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:301)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)	at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)	at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)	at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)	at java.lang.Thread.run(Thread.java:595)