Hi Nuwan, I faced a similar issue during ESB 4.9.0 release testing. First request for proxy services (after tenant unloading/ server restart) failed in tenant mode [1]. Unfortunately ESB team could not reproduce it and I could not identify the exact steps to reproduce it either.
Hope the team will look in to this since you have identified steps to reproduce the issue. [1] https://wso2.org/jira/browse/ESBJAVA-4142 Thanks, Sandapa On Thu, Oct 1, 2015 at 4:47 AM, Nuwan Dias <[email protected]> wrote: > Hi, > > I have a scenario on the ESB where I have created two APIs with the same > context in the tenant space. The first API doesn't have a version and the > second API has a version. The first API receives the request and forwards > to the second API. See illustration below. > > Client (/twitter) --> Twitter_API (/twitter/1.0.0) --> Twitter_API_v1.0.0 > > This scenario however causes the following [1] NPE on the first request > that's sent to the server. The subsequent requests pass until a server > restart happens. > > I tried logging into the management console of the ESB using tenant > credentials to check whether it was related to tenant loading. The first > request still failed with the same error. Any idea why this is happening? > This issue first occurred to me in API Manager after migrating to the > latest released version of Synapse. And is causing test failures in the > product. It worked fine in the older versions of Synapse (2.1.2- version > range). > > [1] > > [2015-10-01 04:41:39,519] ERROR - PassThroughHttpSender Failed to submit > the response > java.lang.NullPointerException > at > org.apache.synapse.transport.passthru.util.SourceResponseFactory.create(SourceResponseFactory.java:64) > at > org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:462) > at > org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:267) > at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442) > at > org.wso2.carbon.core.multitenancy.transports.TenantTransportSender.invoke(TenantTransportSender.java:231) > at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442) > at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:212) > at > org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:444) > at > org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:102) > at > org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81) > at > org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48) > at > org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:149) > at org.apache.synapse.rest.Resource.process(Resource.java:297) > at org.apache.synapse.rest.API.process(API.java:335) > at > org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:97) > at > org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:52) > at > org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:266) > at > org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:529) > at > org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:172) > at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) > at > org.wso2.carbon.core.multitenancy.MultitenantMessageReceiver.processResponse(MultitenantMessageReceiver.java:166) > at > org.wso2.carbon.core.multitenancy.MultitenantMessageReceiver.receive(MultitenantMessageReceiver.java:82) > at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) > at > org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:247) > at > org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > [2015-10-01 04:41:39,521] ERROR - Axis2Sender > Access-Control-Allow-Credentials:true,Access-Control-Allow-Methods:GET, > POST,Access-Control-Allow-Origin:*,Content-Type:application/json; > charset=utf-8,X-Source:redis,<?xml version='1.0' > encoding='utf-8'?><soapenv:Envelope xmlns:soapenv=" > http://www.w3.org/2003/05/soap-envelope";><soapenv:Body/></soapenv:Envelope> > Unexpected error sending message back > org.apache.axis2.AxisFault: Failed to submit the response > at > org.apache.synapse.transport.passthru.PassThroughHttpSender.handleException(PassThroughHttpSender.java:610) > at > org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:269) > at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442) > at > org.wso2.carbon.core.multitenancy.transports.TenantTransportSender.invoke(TenantTransportSender.java:231) > at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442) > at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:212) > at > org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:444) > at > org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:102) > at > org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81) > at > org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48) > at > org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:149) > at org.apache.synapse.rest.Resource.process(Resource.java:297) > at org.apache.synapse.rest.API.process(API.java:335) > at > org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:97) > at > org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:52) > at > org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:266) > at > org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:529) > at > org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:172) > at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) > at > org.wso2.carbon.core.multitenancy.MultitenantMessageReceiver.processResponse(MultitenantMessageReceiver.java:166) > at > org.wso2.carbon.core.multitenancy.MultitenantMessageReceiver.receive(MultitenantMessageReceiver.java:82) > at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) > at > org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:247) > at > org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: java.lang.NullPointerException > at > org.apache.synapse.transport.passthru.util.SourceResponseFactory.create(SourceResponseFactory.java:64) > at > org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:462) > at > org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:267) > ... 25 more > > Thanks, > NuwanD. > > -- > Nuwan Dias > > Technical Lead - WSO2, Inc. http://wso2.com > email : [email protected] > Phone : +94 777 775 729 > > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > > -- Sandapa Handakumbura Associate Technical Lead WSO2.Inc. ; http://wso2.com/ M : +94777115866
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