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
