topic Re: NoClassDefFoundError when starting job in Karaf in Talend Studio

NoClassDefFoundError when starting job in Karaf

Basit — Sat, 16 Nov 2024 06:48:59 GMT

Hi there,

i am experiencing some issues when i want to call a job from Karaf. When I run it in Talen Open Studio it works fine.

I have one parent job which handles a POST request and then starts a child job which executes a POST with a tRESTClient component.

The parent job looks as follows:

And this is the design of the child job:

I used a simple API for testing the tRestClient:

As I already mentioned running this job in Open Studio works fine. The problem occurs when I deploy it in Karaf. I get this exception:

Exception in component tRunJob_1 (RestRequestParent)
java.lang.RuntimeException: java.lang.NoClassDefFoundError: org/apache/cxf/jaxrs/client/JAXRSClientFactoryBean
        at local_project.restrequestparent_0_1.RestRequestParent.tRESTRequest_1_LoopProcess(RestRequestParent.java:2145)
        at local_project.restrequestparent_0_1.RestRequestParent$RestServiceProviderImpl4TalendJob.processRequest(RestRequestParent.java:391)
        at local_project.restrequestparent_0_1.RestRequestParent$RestServiceProviderImpl4TalendJob.path1(RestRequestParent.java:479)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.cxf.service.invoker.AbstractInvoker.performInvocation(AbstractInvoker.java:179)
        at org.apache.cxf.service.invoker.AbstractInvoker.invoke(AbstractInvoker.java:96)
        at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:192)
        at org.apache.cxf.jaxrs.JAXRSInvoker.invoke(JAXRSInvoker.java:103)
        at org.apache.cxf.interceptor.ServiceInvokerInterceptor$1.run(ServiceInvokerInterceptor.java:59)
        at org.apache.cxf.interceptor.ServiceInvokerInterceptor.handleMessage(ServiceInvokerInterceptor.java:96)
        at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
        at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
        at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:267)
        at org.apache.cxf.transport.http_jetty.JettyHTTPDestination.doService(JettyHTTPDestination.java:247)
        at org.apache.cxf.transport.http_jetty.JettyHTTPHandler.handle(JettyHTTPHandler.java:79)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1182)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1116)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
        at org.eclipse.jetty.server.Server.handle(Server.java:534)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333)
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
        at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
        at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
        at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
        at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoClassDefFoundError: org/apache/cxf/jaxrs/client/JAXRSClientFactoryBean
        at local_project.restrequestparent_0_1.RestRequestParent.tRESTRequest_1_LoopProcess(RestRequestParent.java:1638)
        ... 34 more
Caused by: java.lang.ClassNotFoundException: org.apache.cxf.jaxrs.client.JAXRSClientFactoryBean cannot be found by local_project.RestRequestParent_0.1.0
        at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:484)
        at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
        at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
        at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 35 more

Any idea how this can be solved? I am using version 7.0.1 and Java 1.8 by the way.

Best regards

Basit

Re: NoClassDefFoundError when starting job in Karaf

Anonymous — Thu, 24 Jan 2019 09:55:51 GMT

Hello,

Did you deploy only the parent job in runtime? Have you tried to build and deploy the child job firstly to see if it works?

Best regards

Sabrina

Re: NoClassDefFoundError when starting job in Karaf

Basit — Sun, 27 Jan 2019 19:07:10 GMT

Hi @xdshi,

thanks for your reply.

At first I only deployed the parent job which resulted in this NoClassDefFoundError.

After I researched a little bit more I found the suggestion in another thread (https://community.talend.com/t5/Design-and-Development/REST-webservices-from-TOS-ESB-6-4-to-TOS-ESB-7-0-and-tRESTClient/m-p/148650#M91048) to deploy the child job also. But this gave me more problems. In Karaf the state of the child job was "Failure" and when I called my parent job I got some NullPointers and also a WebApplicationException (the REST service always returned 500 as a HTTP code).

Currently I really have no clue why I am not able to get this working...

Best regards,

Basit

Re: NoClassDefFoundError when starting job in Karaf

Anonymous — Mon, 28 Jan 2019 03:01:56 GMT

Hello,

Did you check out "Use an independent process to run subjob" option on tRunJob which is not compatible with the Runtime?

Could you please post your tRunJob component setting screenshots on forum?

Best regards

Sabrina

Re: NoClassDefFoundError when starting job in Karaf

Anonymous — Mon, 28 Jan 2019 03:03:31 GMT

Hello,

Feel free to let us know if it helps.

Best regards

Sabrina

Re: NoClassDefFoundError when starting job in Karaf

Basit — Mon, 28 Jan 2019 21:13:38 GMT

Hi,

thank you very much for your help.

These are my initial settings for tRunJob.

I didn't check "Use an independent process to run subjob" which resulted in this NoClassDefFoundError.

However, I also tried to build this job with this option enabled and got the same result that is also described in your article and in the Jira issue: the child job returns 1 and the main class could not be found.

Now do I understand this correctly that this is currently a bug in Talend Open Studio and cannot be solved?

Best regards,

Basit

Re: NoClassDefFoundError when starting job in Karaf

navds — Tue, 12 Feb 2019 11:58:02 GMT

Having the exact same issue. How did you get around it?

Regards,

Re: NoClassDefFoundError when starting job in Karaf

Basit — Tue, 12 Feb 2019 20:43:10 GMT

Hi @navds,

actually I still couldn't resolve this problem. But I will definitely post a message here as soon as we will find a workaround.

Did you also try to disable the "Use an independent process to run subjob" option? If you will be able to work this out please let me know

Regards,

Basit

Re: NoClassDefFoundError when starting job in Karaf

navds — Wed, 13 Feb 2019 06:36:30 GMT

Hi @Basit,
Apparently, this has something to do with class loading config in v7. I compiled an OSGi bundle of the same job from Talend 6.4.1 and put it in the Talend 7 container. It worked.
Unfortunately, you can't import project made with 7 in 6. I migrated from 6 and fortunately, I had the project archived under version control.
Maybe someone could find a workaround, probably editing pom files, but for now, I'll stay with Talend 6.

Regards,
Navds

Re: NoClassDefFoundError when starting job in Karaf

Basit — Fri, 15 Feb 2019 22:03:22 GMT

Hi @navds

sorry for the late reply. I was a little bit busy the last couple of days.

Good to know that this problem doesn't occur in v6. All our jobs are made with v7 so I am not sure if we will fully downgrade to 6.

But I will definitely give it a try as soon as I will work on this task again. It's really strange that this seems to work with one version but not with the other one...

Anyhow, thanks again for this advice

Regards,

Basit

Re: NoClassDefFoundError when starting job in Karaf

Anonymous — Mon, 15 Apr 2019 21:40:56 GMT

Spent 2 weeks to refactor a job with subjobs so that it is easier to read / modify / change and added new features etc. Now I am running into this very same issue. Please let me know if you were able to find a solution for it. Deselecting "Use an independent process to run subjob" didn't work. Neither deploying the subjobs separately.

Re: NoClassDefFoundError when starting job in Karaf

navds — Tue, 16 Apr 2019 07:43:28 GMT

If it's up to me, I would recommend against Talend ESB for production. So many issues and instability without talking about lack of documentation and support

https://help.talend.com/reader/5rUSEFXF6OUSM_fjCYR~kA/14V1zILctluBKoF~eqNJgQ

Re: NoClassDefFoundError when starting job in Karaf

Anonymous — Fri, 18 Oct 2019 16:51:22 GMT

Same problem here,

we refactored some jobs with subjobs as they were starting to get very hard to read ... and run into the very same problems

Did you find any solution? seesing the post date i don't think so, but who knows?

Sincerely,

Nrd

(ps : sorry posted another thread before finding this one)

Re: NoClassDefFoundError when starting job in Karaf

Anonymous — Tue, 22 Oct 2019 09:01:31 GMT

Hey there,

Problem seems to be with the build process when building osgi container, but i found a temporary solution : https://community.talend.com/t5/Design-and-Development/Job-with-Subjobs-error-when-deployed-as-OSGI-Karaf/m-p/205053#M112191

Sicnerely,

Re: NoClassDefFoundError when starting job in Karaf

Basit — Mon, 31 Aug 2020 13:50:34 GMT

I think I could finally solve this issue. After quite some time we had another case where we ran into the same exception.

For this new job the following workaround helped:

first, deploy all child jobs in Karaf
in my case i stopped them afterwards in Karaf because they don't need to run on their own Command: stop {id} The state of the job should be then shown as "resolved" (check with "list" in Karaf)
then deploy the parent job in Karaf as usual

If I now send a REST request to the parent job there are no more exceptions ( kind of embarassing that I didn't think of this earlier 😅 )

Re: NoClassDefFoundError when starting job in Karaf

Basit — Mon, 31 Aug 2020 13:53:54 GMT

Hi @Navalona Ramanantoanina

I was finally able to solve this issue for us. Look at my latest reply maybe it can help you.

Regards,

Basit

Re: NoClassDefFoundError when starting job in Karaf

Basit — Mon, 31 Aug 2020 13:54:17 GMT

Hi @Gilles LEO

I was finally able to solve this issue for us. Look at my latest reply maybe it can help you.

Regards,

Basit