Matt Parker created CXF-5966:
--------------------------------
Summary: NPE in MessageContextImpl when setting ResponseBuilder
entity in an ExceptionMapper
Key: CXF-5966
URL: https://issues.apache.org/jira/browse/CXF-5966
Project: CXF
Issue Type: Bug
Components: JAX-RS
Affects Versions: 3.0.1
Environment: CXF 3.0.1 with custom
ExceptionMapper<ValidationException>, JAXBElementProvider, MessageContextImpl
Reporter: Matt Parker
I hope that this description is complete enough. I think creating a test case
for this ticket will be more trouble than it's worth, but please let me know if
you need me to.
I have added BeanValidationInInterceptor to my JAX-RS service which uses
JAXB-annotated entities.
I have created an ExceptionMapper to capture and write out the validation
errors into my JAXB-annotated object's 'description' field.
In my exception mapper, I populate MyObject (which is JAXB-annotated), and then
set it as the entity:
responseBuilder.entity(myObject);
it results in an NPE as the JAXBElementProvider attempts to get any attachments
from the MessageContext, which dereferences a null OutboundMessage from its
Exchange.
Line 83 in MessageContextImpl contains:
{code}
return m.getExchange().getOutMessage().get(Message.ATTACHMENTS);
{code}
The javadoc for Exchange.getOutMessage states that "During the inbound message
processing, the outbound message is null".
{code}
2014-08-20 23:50:53,919|ERROR|http-0.0.0.0-8443-2:|STDERR|
java.lang.NullPointerException
2014-08-20 23:50:53,919|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.ext.MessageContextImpl.get(MessageContextImpl.java:83)
2014-08-20 23:50:53,919|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.impl.tl.ThreadLocalMessageContext.get(ThreadLocalMessageContext.java:38)
2014-08-20 23:50:53,927|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.getAttachments(JAXBElementProvider.java:542)
2014-08-20 23:50:53,927|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.addAttachmentMarshaller(JAXBElementProvider.java:520)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.marshal(JAXBElementProvider.java:444)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.provider.JAXBElementProvider.writeTo(JAXBElementProvider.java:318)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.utils.JAXRSUtils.writeMessageBody(JAXRSUtils.java:1363)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.serializeMessage(JAXRSOutInterceptor.java:244)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.processResponse(JAXRSOutInterceptor.java:117)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.interceptor.JAXRSOutInterceptor.handleMessage(JAXRSOutInterceptor.java:80)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.jaxrs.interceptor.JAXRSDefaultFaultOutInterceptor.handleMessage(JAXRSDefaultFaultOutInterceptor.java:61)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver.onMessage(AbstractFaultChainInitiatorObserver.java:113)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:371)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:243)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:223)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:197)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:149)
2014-08-20 23:50:53,928|ERROR|http-0.0.0.0-8443-2:|STDERR| at
org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke(CXFNonSpringServlet.java:171)
{code}
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