Hi, We are getting the following error intermittently when accessing the source view of locally built ESB 4.5.1 pack .
[2012-10-04 14:21:29,140] ERROR - RPCMessageReceiver Exception occurred while trying to invoke service method getConfigurationList java.lang.reflect.InvocationTargetException at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:212) at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:117) at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40) at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:181) at org.apache.axis2.transport.local.LocalTransportReceiver.processMessage(LocalTransportReceiver.java:169) at org.apache.axis2.transport.local.LocalTransportReceiver.processMessage(LocalTransportReceiver.java:82) at org.wso2.carbon.core.transports.local.CarbonLocalTransportSender.finalizeSendWithToAddress(CarbonLocalTransportSender.java:45) at org.apache.axis2.transport.local.LocalTransportSender.invoke(LocalTransportSender.java:77) at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:443) at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:406) at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:229) at org.apache.axis2.client.OperationClient.execute(OperationClient.java:165) at org.wso2.carbon.mediation.configadmin.stub.ConfigServiceAdminStub.getConfigurationList(ConfigServiceAdminStub.java:2130) at org.wso2.carbon.mediation.configadmin.ui.ConfigManagementClient.getConfigurations(ConfigManagementClient.java:137) at org.apache.jsp.configadmin.index_jsp._jspService(index_jsp.java:388) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.wso2.carbon.ui.JspServlet.service(JspServlet.java:161) at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:80) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:36) at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:690) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:599) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:536) at org.eclipse.equinox.http.servlet.internal.RequestDispatcherAdaptor.include(RequestDispatcherAdaptor.java:37) at org.eclipse.equinox.http.helper.ContextPathServletAdaptor$RequestDispatcherAdaptor.include(ContextPathServletAdaptor.java:265) at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966) at org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:643) at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:637) at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.tiles.jsp.context.JspUtil.doInclude(JspUtil.java:87) at org.apache.tiles.jsp.context.JspTilesRequestContext.include(JspTilesRequestContext.java:88) at org.apache.tiles.jsp.context.JspTilesRequestContext.dispatch(JspTilesRequestContext.java:82) at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:465) at org.apache.tiles.jsp.taglib.InsertAttributeTag.render(InsertAttributeTag.java:140) at org.apache.tiles.jsp.taglib.InsertAttributeTag.render(InsertAttributeTag.java:117) at org.apache.tiles.jsp.taglib.RenderTagSupport.execute(RenderTagSupport.java:171) at org.apache.tiles.jsp.taglib.RoleSecurityTagSupport.doEndTag(RoleSecurityTagSupport.java:75) at org.apache.tiles.jsp.taglib.ContainerTagSupport.doEndTag(ContainerTagSupport.java:80) at org.apache.jsp.admin.layout.template_jsp._jspx_meth_tiles_insertAttribute_7(template_jsp.java:539) at org.apache.jsp.admin.layout.template_jsp._jspService(template_jsp.java:290) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.wso2.carbon.ui.JspServlet.service(JspServlet.java:161) at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:80) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:36) at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:690) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:477) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329) at org.eclipse.equinox.http.servlet.internal.RequestDispatcherAdaptor.forward(RequestDispatcherAdaptor.java:30) at org.eclipse.equinox.http.helper.ContextPathServletAdaptor$RequestDispatcherAdaptor.forward(ContextPathServletAdaptor.java:258) at org.apache.tiles.servlet.context.ServletTilesRequestContext.forward(ServletTilesRequestContext.java:198) at org.apache.tiles.servlet.context.ServletTilesRequestContext.dispatch(ServletTilesRequestContext.java:185) at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:419) at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:370) at org.wso2.carbon.ui.action.ActionHelper.render(ActionHelper.java:52) at org.wso2.carbon.ui.TilesJspServlet.service(TilesJspServlet.java:101) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.eclipse.equinox.http.helper.ContextPathServletAdaptor.service(ContextPathServletAdaptor.java:36) at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111) at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.wso2.carbon.tomcat.ext.filter.CharacterSetFilter.doFilter(CharacterSetFilter.java:61) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.wso2.carbon.tomcat.ext.valves.CompositeValve.invoke(CompositeValve.java:172) at org.wso2.carbon.tomcat.ext.valves.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:156) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.wso2.carbon.tomcat.ext.valves.CarbonContextCreatorValve.invoke(CarbonContextCreatorValve.java:52) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1001) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1653) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) *Caused by: java.lang.NullPointerException* * at org.wso2.carbon.registry.core.caching.CacheBackedRegistry.get(CacheBackedRegistry.java:179) * at org.wso2.carbon.registry.core.session.UserRegistry.get(UserRegistry.java:519) at org.wso2.carbon.mediation.initializer.configurations.ConfigurationTracker.getConfigurationList(ConfigurationTracker.java:122) at org.wso2.carbon.mediation.initializer.configurations.ConfigurationManager.getConfigurationsList(ConfigurationManager.java:404) at org.wso2.carbon.mediation.configadmin.ConfigAdmin.getConfigurationList(ConfigAdmin.java:100) ... 116 more -- *Isuru Udana* * * * Software Engineer * Integration Technologies Team, WSO2 Inc.; http://wso2.com email: [email protected] cell: +94 77 3791887 blog: http://mytecheye.blogspot.com/ twitter: http://twitter.com/isudana
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