Inorder for this to work we need to make sure all our user interfaces are aware about session persistence. Currently we have JSP pages where we set certain non-serializable objects to session and access them in subsequent pages. So if we are at a page where object is accessed and if we try to access the page after a restart we might face issues (as expected objects are not found in the sessio
Thilina also reported several similar issues. We have 2 solutions for this. 1. Make sure all JSPs are aware about session persistence. i.e. if a JSP or UI component doesnt find a necessary object in session it has to execute some code to initialize the object and carry on processing - This might be tedious as we need to go through all UI/JSP components to find such occurrences. 2. Disable session persistence and make the system re-direct to login page during authentication - This is what we had in earlier releases. So what is the best option to solve this issue ? Thanks AmilaJ On Fri, May 18, 2012 at 2:58 PM, Shammi Jayasinghe <[email protected]> wrote: > > > On Fri, May 18, 2012 at 2:27 PM, Shammi Jayasinghe <[email protected]> wrote: >> >> This problem went off once i updated and built the complete platform and >> kernel >> >> Thanks >> Shammi >> >> >> On Fri, May 18, 2012 at 2:08 PM, Isuru Wimalasundera <[email protected]> >> wrote: >>> >>> Hi >>> >>> I am facing a similar kind of situation when restarting the Greg server. >>> After a restart I can not open the service list page because from the >>> ListMetaDataService it returns a NULL registry. When dig deep the reason for >>> returning a NULL registry is identified as the following code segment of >>> AbstractAdmin returns a NULL. >>> >>> >>> CarbonContext.getCurrentContext().getRegistry(RegistryType.USER_GOVERNANCE); >>> >>> the CarbonContext.getCurrentContext() returns a NULL. How is it possible >>> to overcome this issue? >>> > Hi Isuru, > Yes it still exists once i restarted the server. Seems some configuration > happens at the initial start up and due to that this happens. > > Thanks > Shammi > >>> >>> Thanks >>> Isuruw >>> >>> >>> On Fri, May 18, 2012 at 12:38 PM, Shammi Jayasinghe <[email protected]> >>> wrote: >>>> >>>> Hi , >>>> I am getting following NPE [1]when trying to subscribe to a topic. It >>>> is due to the null value of "CarbonContext.getCurrentContext()" coming from >>>> the following method in event.core module. I built the complete platform >>>> yesterday. Is this a known issue ? >>>> >>>> Thanks >>>> Shammi >>>> >>>> public static String getLoggedInUserName() { >>>> String userName = ""; >>>> if (CarbonContext.getCurrentContext().getTenantId() != 0) { >>>> userName = CarbonContext.getCurrentContext().getUsername() + >>>> "@" >>>> + >>>> CarbonContext.getCurrentContext().getTenantDomain(); >>>> } else { >>>> userName = CarbonContext.getCurrentContext().getUsername(); >>>> } >>>> return userName.trim(); >>>> } >>>> >>>> >>>> >>>> >>>> [1]java.lang.NullPointerException >>>> at >>>> org.wso2.carbon.event.ws.internal.receivers.CarbonEventingMessageReceiver.handleSubscribe(CarbonEventingMessageReceiver.java:175) >>>> at >>>> org.wso2.carbon.event.ws.internal.receivers.CarbonEventingMessageReceiver.processMessage(CarbonEventingMessageReceiver.java:386) >>>> at >>>> org.wso2.carbon.event.ws.internal.receivers.CarbonEventingMessageReceiver.invokeBusinessLogic(CarbonEventingMessageReceiver.java:81) >>>> 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.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172) >>>> at >>>> org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146) >>>> at >>>> org.wso2.carbon.core.transports.CarbonServlet.doPost(CarbonServlet.java:205) >>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) >>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) >>>> 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:45) >>>> 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.StandardWrapperValve.invoke(StandardWrapperValve.java:225) >>>> at >>>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) >>>> 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:143) >>>> 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:48) >>>> 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:999) >>>> at >>>> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565) >>>> at >>>> org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1620) >>>> 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) >>>> -- >>>> Best Regards, >>>> >>>> Shammi Jayasinghe >>>> Senior Software Engineer; WSO2, Inc.; http://wso2.com, >>>> mobile: +94 71 4493085 >>>> >>>> >>>> >>>> _______________________________________________ >>>> Dev mailing list >>>> [email protected] >>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>> >>> >>> >>> >>> -- >>> Isuru Wimalasundera >>> Software Engineer; WSO2, Inc.; http://wso2.com, >>> mobile: +94 77 920 5641 >>> >> >> >> >> -- >> Best Regards, >> >> Shammi Jayasinghe >> Senior Software Engineer; WSO2, Inc.; http://wso2.com, >> mobile: +94 71 4493085 >> >> > > > > -- > Best Regards, > > Shammi Jayasinghe > Senior Software Engineer; WSO2, Inc.; http://wso2.com, > mobile: +94 71 4493085 > > -- Mobile : +94773330538 _______________________________________________ Dev mailing list [email protected] http://wso2.org/cgi-bin/mailman/listinfo/dev
