It's not clear whether these two exceptions are actually related. I will
comment on the second exception though: your resource method was in the
process of reading the HTTP request body and converting it into an
object (whatever parameters you declared on your method) but someone
terminated the connection before it could complete the conversion. For
example, if your method takes a Date parameter but the HTTP body was
empty, you'd get this error.
I hope this helps.
Gili
On 2016-06-28 12:56 AM, Richard Sand wrote:
> Hi all - I'm seeing an exception coming back from Jersey for one of my
> test cases and I can't determine exactly where its coming from in my
> code. I suspect its a NPE from within the class that my resource is
> returning but I'm not sure.
>
> Couple of questions:
>
> 1) When a resource returns a JAXB class as opposed to a Response
> object, what actually is supposed to happen if the returned object is
> null?
>
> 2) If the response is going to be null, is it better generate an
> exception that gets mapped in Jersey to provide a more interesting
> response to the client?
>
> Here is my stack trace - is this caused by an NPE or other runtime
> exception in the returned class during the marshaling?
>
> 2016-06-27 16:04:54.993 [tomcat-http--3] DEBUG
> c.s.j.s.container.ContainerResponse - Mapped exception to response: 405
> javax.ws.rs.WebApplicationException: null
> at
> com.sun.jersey.server.impl.uri.rules.TerminatingRule.accept(TerminatingRule.java:66)
> at
> com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)
> .....
> 2016-06-27 16:05:26.511 [tomcat-http--4] ERROR
> c.s.j.s.container.ContainerResponse - The exception contained within
> MappableContainerException could not be mapped to a response,
> re-throwing to the HTTP container
> java.io.EOFException: No content to map to Object due to end of input
> at
> org.codehaus.jackson.map.ObjectMapper._initForReading(ObjectMapper.java:2766)
> at
> org.codehaus.jackson.map.ObjectMapper._readValue(ObjectMapper.java:2682)
> at
> org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1308)
> at
> org.codehaus.jackson.jaxrs.JacksonJsonProvider.readFrom(JacksonJsonProvider.java:419)
> at
> com.sun.jersey.spi.container.ContainerRequest.getEntity(ContainerRequest.java:490)
> at
> com.sun.jersey.spi.container.ContainerRequest.getEntity(ContainerRequest.java:555)
> at
> com.sun.jersey.server.impl.model.method.dispatch.FormDispatchProvider.processForm(FormDispatchProvider.java:103)
> at
> com.sun.jersey.server.impl.model.method.dispatch.FormDispatchProvider.access$000(FormDispatchProvider.java:68)
> at
> com.sun.jersey.server.impl.model.method.dispatch.FormDispatchProvider$FormParameterProvider.getInjectableValues(FormDispatchProvider.java:115)
> at
> com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$EntityParamInInvoker.getParams(AbstractResourceMethodDispatchProvider.java:153)
> at
> com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:183)
> at
> com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
> at
> com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
> at
> com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
>
>
> Thanks for any help!
>
> -Richard