Hey Carlos,
I've just updated my dependencies to use the newest version of the
whiteboard and the error seems gone... Sorry for the fuzz. I was using the
dependencies provided by the OSGi enRoute POMs and those could need an
update, which I was not aware of before :/
Have a nice weekend,
Thomas
Am Fr., 10. Jan. 2020 um 15:14 Uhr schrieb Thomas Driessen <
thomas.driessen...@gmail.com>:
> Hi Carlos,
>
> thanks for your quick response.
>
> The traces get deserialized without an error and I can print them on the
> console, but somewhere afterwards an NPE is internally thrown which leads
> to the mentioned error.
>
> What is strange though is, that if I change the return type of my method
> into String and return something, then the error in the response is gone.
> The NPE still gets thrown internally though, but does not seem to reach
> the caller.
>
> Regarding the request I send:
>
> curl -X PUT localhost:8080/v0.4/traces -H "Content-Type: application/json"
> -d @input.json
>
> where input.json looks like:
>
> [[
> {
> "type": "sample",
> "error": 1,
> "duration": 123,
> "parent_id": 0,
> "start": 111,
> "resource": "Some resource",
> "name": "My name",
> "service": "My Service",
> "trace_id": 345,
> "span_id": 678
> }
> ]]
>
>
> You still can jump right into a working workspace for this if you use the
> gitpod link that I posted. Maybe then it's easier for you to pinpoint the
> error.
>
> Kind regards,
> Thomas
>
> Am Fr., 10. Jan. 2020 um 14:26 Uhr schrieb Carlos Sierra Andrés <
> csie...@apache.org>:
>
>> Hi Thomas,
>>
>> I would put my money in List<List<Trace>> is not being properly
>> deserialized and thus you get a null traces object reference.
>>
>> Could you please also paste what request are you making to the endpoint?
>>
>> Carlos.
>> El 10/1/20 a las 13:27, Thomas Driessen escribió:
>>
>> Hi,
>>
>> I stumbled upon a bug/NPE in the Aries JAX-RS Whiteboard. In order to see
>> it in action you can just open the example repo with steps to reproduce
>> this bug that I prepared in GitPod.
>>
>> https://gitpod.io/#https://github.com/Sandared/osgi-pg/tree/jaxrs
>>
>> Long version:
>>
>> I'm currently trying to set up a simple JAX-RS Resource in OSGi.
>> All I did so far was adding a PUT endpoint that receives a "Traces"
>> object, and adding `org.apache.aries.jax.rs.jackson` to the project in
>> order to be able to serialize and deserialize JSON.
>> Each time I send a PUT request to my endpoint, I get this error response
>> back:
>>
>> <ns1:XMLFault
>> xmlns:ns1="http://cxf.apache.org/bindings/xformat";><ns1:faultstring
>> xmlns:ns1="http://cxf.apache.org/bindings/xformat";>java.lang.NullPointerException</ns1:faultstring></ns1:XMLFault>
>>
>>
>> The log of the JAX-RS Whiteboard shows a NPE:
>>
>> java.nio.channels.ClosedChannelException: null
>> at org.eclipse.jetty.io.WriteFlusher.onClose(WriteFlusher.java:502)
>> at
>> org.eclipse.jetty.io.AbstractEndPoint.onClose(AbstractEndPoint.java:353)
>> at
>> org.eclipse.jetty.io.ChannelEndPoint.onClose(ChannelEndPoint.java:216)
>> at
>> org.eclipse.jetty.io.AbstractEndPoint.doOnClose(AbstractEndPoint.java:225)
>> at
>> org.eclipse.jetty.io.AbstractEndPoint.close(AbstractEndPoint.java:192)
>> at
>> org.eclipse.jetty.io.AbstractEndPoint.close(AbstractEndPoint.java:175)
>> at
>> org.eclipse.jetty.io.AbstractConnection.close(AbstractConnection.java:248)
>> at
>> org.eclipse.jetty.server.HttpChannelOverHttp.earlyEOF(HttpChannelOverHttp.java:234)
>> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:1551)
>> at
>> org.eclipse.jetty.server.HttpConnection.parseRequestBuffer(HttpConnection.java:360)
>> at
>> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:250)
>> at
>> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
>> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
>> at
>> org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
>> at
>> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:132)
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)
>> at
>> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)
>> at java.base/java.lang.Thread.run(Thread.java:834)
>>
>>
>> The endpoint looks like this:
>>
>> @Component(service = ComponentImpl.class)@JaxrsResource@JSONRequiredpublic
>> class ComponentImpl {
>>
>> @Path("/v0.4/traces")
>> @PUT
>> @Consumes(MediaType.APPLICATION_JSON)
>> public void receiveTraces(List<List<Trace>> traces) {
>> System.out.println("recieveTraces was called, traces were " +
>> traces);
>> }
>> }
>>
>> My bundles look like this:
>>
>> lb
>> START LEVEL 1
>> ID|State |Level|Name
>> 0|Active | 0|OSGi System Bundle
>> (3.13.100.v20180827-1536)|3.13.100.v20180827-1536
>> 1|Active | 1|Logback Classic Module (1.2.3)|1.2.3
>> 2|Active | 1|Logback Core Module (1.2.3)|1.2.3
>> 3|Active | 1|jaxb-api (2.2.11)|2.2.11
>> 4|Active | 1|Apache Aries JAX-RS Specification API (1.0.0)|1.0.0
>> 5|Active | 1|Apache Aries JAX-RS Whiteboard (1.0.1)|1.0.1
>> 6|Active | 1|Apache Commons FileUpload (1.3.3)|1.3.3
>> 7|Active | 1|Apache Commons IO (2.6.0)|2.6.0
>> 8|Active | 1|Apache Felix Configuration Admin Service
>> (1.9.8)|1.9.8
>> 9|Active | 1|Apache Felix Gogo Command (1.0.2)|1.0.2
>> 10|Active | 1|Apache Felix Gogo Runtime (1.0.10)|1.0.10
>> 11|Active | 1|Apache Felix Gogo Shell (1.0.0)|1.0.0
>> 12|Active | 1|Apache Felix Http Jetty (4.0.6)|4.0.6
>> 13|Active | 1|Apache Felix Servlet API (1.1.2)|1.1.2
>> 14|Active | 1|Apache Felix Inventory (1.0.4)|1.0.4
>> 15|Active | 1|Apache Felix Declarative Services (2.1.10)|2.1.10
>> 16|Active | 1|Apache Felix Web Management Console (4.3.4)|4.3.4
>> 17|Active | 1|Apache Felix Web Console Service Component
>> Runtime/Declarative Services Plugin (2.0.8)|2.0.8
>> 18|Active | 1|Apache ServiceMix :: Specs :: Activation API 1.4
>> (2.9.0)|2.9.0
>> 19|Active | 1|Apache ServiceMix :: Specs :: Annotation API 1.3
>> (1.3.0.1)|1.3.0.1
>> 20|Active | 1|Apache ServiceMix :: Specs :: JAXWS API 2.2
>> (2.9.0)|2.9.0
>> 21|Active | 1|Apache ServiceMix :: Specs :: SAAJ API 1.3
>> (2.9.0)|2.9.0
>> 22|Active | 1|org.osgi:org.osgi.service.jaxrs
>> (1.0.0.201802012106)|1.0.0.201802012106
>> 23|Active | 1|org.osgi:org.osgi.util.function
>> (1.1.0.201802012106)|1.1.0.201802012106
>> 24|Active | 1|org.osgi:org.osgi.util.promise
>> (1.1.0.201802012106)|1.1.0.201802012106
>> 25|Active | 1|slf4j-api (1.7.25)|1.7.25
>> 26|Active | 1|processagent.app
>> (1.0.0.202001101124)|1.0.0.202001101124
>> 27|Active | 1|processagent.impl
>> (1.0.0.202001101124)|1.0.0.202001101124
>> 28|Active | 1|Byte Buddy agent (1.10.6)|1.10.6
>> 29|Active | 1|Apache Felix Configurator Service (1.0.6)|1.0.6
>> 30|Active | 1|Apache ServiceMix :: Specs :: JSon API 1.1
>> (2.9.0)|2.9.0
>> 31|Active | 1|org.osgi:org.osgi.util.converter
>> (1.0.0.201802012108)|1.0.0.201802012108
>> 32|Active | 1|Jackson-annotations (2.9.0)|2.9.0
>> 33|Active | 1|Jackson-core (2.9.6)|2.9.6
>> 34|Active | 1|jackson-databind (2.9.6)|2.9.6
>> 35|Active | 1|Jackson-JAXRS-base (2.9.6)|2.9.6
>> 36|Active | 1|Jackson-JAXRS-JSON (2.9.6)|2.9.6
>> 37|Active | 1|Jackson module: JAXB Annotations (2.9.6)|2.9.6
>> 38|Active | 1|Apache Aries JAX-RS JAX-RS Jackson (1.0.2)|1.0.2
>>
>>
>> Any suggestions what I'm doing wrong?
>>
>> Kind regards,
>> Thomas
>>
>>
