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Re: [leshan-dev] Request for LeshanServer side exception assistance
Hello Kai,

Thanks for the attention. By that I mean the file oma-objects-spec.json which comes with leshan-core. From my understanding that is where the object models are kept and loaded from at runtime. What I did was to create a custom object model and gave it the ID 12207 (with its resources as well) so I can use in my project. What I am doing is that I have exposed some services which make use of an instance of LeshanServer class. The server processes all requests concurrently. From my log, the server runs okay for a while then after sometimes these exceptions get thrown.
I hope I have clarified what I was referring to.

Thanks very much.
Best regards,
Brighter

On 22 October 2015 at 15:38, Hudalla Kai (INST/ESY) <Kai.Hudalla@xxxxxxxxxxxx> wrote:

Brighter,

 

Which JSON file are you referring to with

I have extended the JSON file of the objects to include a custom object with id 12207 in my work.

 

Regards,

Kai

 

 

From: leshan-dev-bounces@xxxxxxxxxxx [mailto:leshan-dev-bounces@xxxxxxxxxxx] On Behalf Of Brighter Agyemang
Sent: Thursday, October 22, 2015 3:55 AM
To: leshan developer discussions
Subject: [leshan-dev] Request for LeshanServer side exception assistance

 

Hello,

Please I keep getting this error at the leshanServer side in a project I am working on:

 

Exception in thread "Thread-485" org.eclipse.leshan.core.request.exception.ResourceAccessException: [Unable to decode tlv.] ([/12207/0])

          at org.eclipse.leshan.server.californium.impl.LwM2mResponseBuilder.buildContentResponse(LwM2mResponseBuilder.java:269)

          at org.eclipse.leshan.server.californium.impl.LwM2mResponseBuilder.visit(LwM2mResponseBuilder.java:104)

          at org.eclipse.leshan.core.request.ReadRequest.accept(ReadRequest.java:79)

          at org.eclipse.leshan.server.californium.impl.CaliforniumLwM2mRequestSender$1.buildResponse(CaliforniumLwM2mRequestSender.java:85)

          at org.eclipse.leshan.server.californium.impl.CaliforniumLwM2mRequestSender$SyncRequestObserver.onResponse(CaliforniumLwM2mRequestSender.java:223)

          at org.eclipse.californium.core.coap.Request.setResponse(Request.java:377)

          at org.eclipse.californium.core.server.ServerMessageDeliverer.deliverResponse(ServerMessageDeliverer.java:154)

          at org.eclipse.californium.core.network.stack.CoapStack$StackTopAdapter.receiveResponse(CoapStack.java:191)

          at org.eclipse.californium.core.network.stack.AbstractLayer.receiveResponse(AbstractLayer.java:98)

          at org.eclipse.californium.core.network.stack.ObserveLayer.receiveResponse(ObserveLayer.java:138)

          at org.eclipse.californium.core.network.stack.AbstractLayer.receiveResponse(AbstractLayer.java:98)

          at org.eclipse.californium.core.network.stack.BlockwiseLayer.receiveResponse(BlockwiseLayer.java:381)

          at org.eclipse.californium.core.network.stack.AbstractLayer.receiveResponse(AbstractLayer.java:98)

          at org.eclipse.californium.core.network.stack.TokenLayer.receiveResponse(TokenLayer.java:79)

          at org.eclipse.californium.core.network.stack.AbstractLayer.receiveResponse(AbstractLayer.java:98)

          at org.eclipse.californium.core.network.stack.ReliabilityLayer.receiveResponse(ReliabilityLayer.java:247)

          at org.eclipse.californium.core.network.stack.AbstractLayer.receiveResponse(AbstractLayer.java:98)

          at org.eclipse.californium.core.network.stack.CoapStack.receiveResponse(CoapStack.java:138)

          at org.eclipse.californium.core.network.CoAPEndpoint$InboxImpl.receiveMessage(CoAPEndpoint.java:619)

          at org.eclipse.californium.core.network.CoAPEndpoint$InboxImpl.access$700(CoAPEndpoint.java:530)

          at org.eclipse.californium.core.network.CoAPEndpoint$InboxImpl$1.run(CoAPEndpoint.java:542)

          at org.eclipse.californium.core.network.CoAPEndpoint$5.run(CoAPEndpoint.java:678)

          at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

          at java.util.concurrent.FutureTask.run(FutureTask.java:266)

          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)

          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)

          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

          at java.lang.Thread.run(Thread.java:745)

Caused by: org.eclipse.leshan.core.node.codec.InvalidValueException: Unable to decode tlv.

          at org.eclipse.leshan.core.node.codec.LwM2mNodeDecoder.decode(LwM2mNodeDecoder.java:101)

          at org.eclipse.leshan.server.californium.impl.LwM2mResponseBuilder.buildContentResponse(LwM2mResponseBuilder.java:265)

          ... 28 more

Caused by: org.eclipse.leshan.tlv.TlvException: Impossible to parse TLV

 

I have extended the JSON file of the objects to include a custom object with id 12207 in my work.

 

Please can anyone help with an idea of what may be the cause?...

Thanks a lot in advance


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