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From "Philippe Larouche (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-5795) Reading the entity from a Response with 202 - Accepted causes NullPointerException
Date Tue, 12 Aug 2014 14:23:12 GMT

    [ https://issues.apache.org/jira/browse/CXF-5795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14094086#comment-14094086
] 

Philippe Larouche commented on CXF-5795:
----------------------------------------

Hi guys!

I confirm that the bug still exists in version 3.0.1.  I reproduced the exact same scenario
described initialy and Here is the trace I got:

HTTP/1.1 202 Accepted
Content-Type: application/json
Date: Tue, 12 Aug 2014 14:03:43 GMT
Transfer-Encoding: chunked
Server: Jetty(8.1.15.v20140411)

body:
{"identifiantCorrelation":"ddb4b52b-797e-457a-a4f2-9c84bf7b9f20","cause":null,"identifiantTransaction":null,"messages":null,"statut":"ACCEPTE"}

I would expect the response to be casted in my specific class, but it is not.  I receive the
following exception:

javax.ws.rs.ProcessingException: java.lang.IllegalStateException: The entity is not backed
by an input stream, entity class is : null
	at org.apache.cxf.jaxrs.impl.ResponseImpl.doReadEntity(ResponseImpl.java:387)
	at org.apache.cxf.jaxrs.client.AbstractClient.readBody(AbstractClient.java:495)
	at org.apache.cxf.jaxrs.client.WebClient.handleResponse(WebClient.java:1169)
	at org.apache.cxf.jaxrs.client.WebClient.doResponse(WebClient.java:1152)
	at org.apache.cxf.jaxrs.client.WebClient.doChainedInvocation(WebClient.java:1089)
	at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:883)
	at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:854)
	at org.apache.cxf.jaxrs.client.WebClient.invoke(WebClient.java:417)
	at org.apache.cxf.jaxrs.client.WebClient.post(WebClient.java:447)


When I change the response status to SUCCESS, everything's fine.  This exception occurs with
CXF version 3.0.1.  If I try the version 3.0.0, I receive the following exception insteand:

javax.ws.rs.ProcessingException: java.lang.NullPointerException
	at org.apache.cxf.jaxrs.impl.ResponseImpl.doReadEntity(ResponseImpl.java:387)
	at org.apache.cxf.jaxrs.client.AbstractClient.readBody(AbstractClient.java:496)
	at org.apache.cxf.jaxrs.client.WebClient.handleResponse(WebClient.java:1168)
	at org.apache.cxf.jaxrs.client.WebClient.doResponse(WebClient.java:1151)
	at org.apache.cxf.jaxrs.client.WebClient.doChainedInvocation(WebClient.java:1088)
	at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:882)
	at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:853)
	at org.apache.cxf.jaxrs.client.WebClient.invoke(WebClient.java:417)
	at org.apache.cxf.jaxrs.client.WebClient.post(WebClient.java:447)

Thanks to reopen the bug and keep us posted on it.  
Phil

> Reading the entity from a Response with 202 - Accepted causes NullPointerException
> ----------------------------------------------------------------------------------
>
>                 Key: CXF-5795
>                 URL: https://issues.apache.org/jira/browse/CXF-5795
>             Project: CXF
>          Issue Type: Bug
>          Components: JAX-RS
>    Affects Versions: 2.7.11
>         Environment: Apache CXF 2.7.11
>            Reporter: Daniel Peder Dahlsveen
>            Assignee: Sergey Beryozkin
>             Fix For: 2.7.12, 3.0.1
>
>
> The entity of a Response with HTTP status code 202 - Accepted is null. This causes a
NullPointerException when calling response.readEntity(). Furthermore, this bug seems to only
occur when using the JAXRSClientFactory, and it was introduced in CXF 2.7.11.
> The stacktrace is of the NullPointerException:
> java.lang.NullPointerException
> 	at org.apache.cxf.jaxrs.impl.ResponseImpl.doReadEntity(ResponseImpl.java:345)
> 	at org.apache.cxf.jaxrs.impl.ResponseImpl.readEntity(ResponseImpl.java:286)
> 	at org.apache.cxf.jaxrs.impl.ResponseImpl.readEntity(ResponseImpl.java:276)
> To recreate the bug do the following:
> Create a REST service that returns a 202 - Accepted with a non-null entity. In our case,
the service was for HTTP POST.
> Create a unit test that tests the service by creating a client with the JAXRSClientFactory
and then reads the entity from the response. 
> Both return Response.accepted(entity).build(); and return Response.status(Response.Status.ACCEPTED).entity(entity).build();
causes the bug.



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