Hello,
There seem to be issues with @Context-injected fields in ExceptionMapper, where
it throws an NPE with this:
public class MyMapper implements ExceptionMapper<Exception> {
@Context
private HttpServletRequest request;
public Response toResponse(Exception ex) {
System.out.println(request.getRequestURI()); // NPE happens here.
return Response.ok().build();
}
}
The request is a ThreadLocalHttpServletRequest, but there is nothing in the
thread local.
As far as I can tell, the flow is:
JAXRSInvoker.invoke: InjectionUtils.injectContextFields(...) injects from
exchange.getInMessage() into various threadlocals.
JAXRSInvoker.invoke: result = invoke(...) throws a fault because the service
throws an exception
JAXRSInvoker.invoke: JAXRSUtils.convertFaultToResponse(ex.getCause()) handles
the fault
JAXRSUtils.convertFaultToResponse:
ProviderFactory.getInstance().createExceptionMapper(ex.getClass(), new
MessageImpl()) sends a blank MessageImpl into the exception mapper init method.
ProviderFactory.createExceptionMapper: InjectionUtils.injectContextFields(...)
injects from the blank Message object into the various threadlocals on the
ExceptionMapper
ExceptionMapper.toResponse: Retrieves the threadlocal and gets an NPE.
One way to fix this would be to add a Message argument to
JAXRSUtils.convertFaultToResponse
Cheers,
Gary
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