Hi NuwanD, I can reproduce the issue with the provided configuration. I have already created a fix for this issue and currently testing it. I'll update the thread once I finalized the fix and merge the PR.
On Tue, Oct 6, 2015 at 2:59 PM, Nuwan Dias <[email protected]> wrote: > Attaching the two APIs I used for testing. To reproduce this issue, create > a tenant with the domain as 'wso2.com' and deploy these two APIs within > the tenant space and restart the server. > > Then access the API without the version using the following URL. > > http://localhost:8280/t/wso2.com/responseapi/weather?q=London > > Thanks, > NuwanD. > > On Tue, Oct 6, 2015 at 2:53 PM, Chanaka Fernando <[email protected]> > wrote: > >> Hi Nuwan, >> >> I had a look into the code which is causing this NPE. According to the >> way it is written, this NPE can be occurred. I have tried to replicate what >> NuwanD has mentioned but couldn't reproduce the same NPE. This can be >> occurred due to synapse configuration issue. >> >> @NuwanD: Can you share the configurations which you have used to >> reproduce this issue? >> >> >> Thanks, >> Chanaka >> >> On Thu, Oct 1, 2015 at 10:41 AM, Chanaka Fernando <[email protected]> >> wrote: >> >>> Hi All, >>> >>> We are looking into this issue. >>> >>> On Thu, Oct 1, 2015 at 10:37 AM, Sandapa Handakumbura <[email protected]> >>> wrote: >>> >>>> 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 >>>> >>>> _______________________________________________ >>>> Dev mailing list >>>> [email protected] >>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>> >>>> >>> >>> >>> -- >>> -- >>> Chanaka Fernando >>> Senior Technical Lead >>> WSO2, Inc.; http://wso2.com >>> lean.enterprise.middleware >>> >>> mobile: +94 773337238 >>> Blog : http://soatutorials.blogspot.com >>> LinkedIn:http://www.linkedin.com/pub/chanaka-fernando/19/a20/5b0 >>> Twitter:https://twitter.com/chanakaudaya >>> >>> >>> >>> >>> >> >> >> -- >> -- >> Chanaka Fernando >> Senior Technical Lead >> WSO2, Inc.; http://wso2.com >> lean.enterprise.middleware >> >> mobile: +94 773337238 >> Blog : http://soatutorials.blogspot.com >> LinkedIn:http://www.linkedin.com/pub/chanaka-fernando/19/a20/5b0 >> Twitter:https://twitter.com/chanakaudaya >> >> >> >> >> > > > -- > Nuwan Dias > > Technical Lead - WSO2, Inc. http://wso2.com > email : [email protected] > Phone : +94 777 775 729 > -- -- Chanaka Fernando Senior Technical Lead WSO2, Inc.; http://wso2.com lean.enterprise.middleware mobile: +94 773337238 Blog : http://soatutorials.blogspot.com LinkedIn:http://www.linkedin.com/pub/chanaka-fernando/19/a20/5b0 Twitter:https://twitter.com/chanakaudaya
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