On Fri, May 18, 2012 at 3:10 PM, Amila Jayasekara <[email protected]> wrote:
> 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. > if there was a reason to change this? if not better to use this since that worked fine for last builds. thanks, Amila. > > 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 > -- *Amila Suriarachchi* Software Architect WSO2 Inc. ; http://wso2.com lean . enterprise . middleware phone : +94 71 3082805
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