[CXF-5795] Reading the entity from a Response with 202 - Accepted causes NullPointerException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.11
• Fix Version/s: 2.7.13, 3.0.2, 3.1
• Component/s: JAX-RS

Environment

Apache CXF 2.7.11

• Estimated Complexity: Unknown
• Assignee: Sergey Beryozkin
• Reporter: Daniel Peder Dahlsveen
• Created: 10/Jun/14 11:07
• Updated: 16/Feb/15 16:09
• Resolved: 14/Aug/14 13:02

Description

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.