Ravi Luthra created CXF-6480:
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Summary: InjectionUtils createThreadLocalServletApiContext better
error message for invalid @Context classes
Key: CXF-6480
URL: https://issues.apache.org/jira/browse/CXF-6480
Project: CXF
Issue Type: Bug
Environment: All OS
Reporter: Ravi Luthra
When you have an \@Context field in a JAXRS class (maybe JAXWS too?) there is a
select list of possible proxy classes. This method checks for the proxy class
using an if/else/if/else... structure, but there is no final else clause with a
good exception. Instead the method attempts to instantiate a null class name
(proxyClassName), which throws a NullPointerException. This leaves the method
wrapped inside a RuntimeException. A common forgetful change someone might make
is to add
{code}@Context private HttpSession session; //(instead of private
HttpServletRequest){code}
Which leaves a massive stack trace leaving just an NPE and Spring also tends to
obscure the stack-trace of this issue. A better error would be to suggest that
the given class ...HttpSession is not a valid Context type. No proxy classes
can be created for this type.
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