Cooper created CXF-4409:
---------------------------
Summary: Proxy-based Client use Multipart getting
NullPointerException
Key: CXF-4409
URL: https://issues.apache.org/jira/browse/CXF-4409
Project: CXF
Issue Type: Bug
Components: JAX-RS
Affects Versions: 2.6
Environment: win32;x86_64;java 1.7.0_05-b05
Reporter: Cooper
Priority: Minor
It's all about the client, when use Proxy-based client API
Failed method signature of client restful interface as below:
@POST
@Path("/findEmployeePagingResults")
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Produces(MediaType.APPLICATION_JSON)
List<Employee> findEmployeePagingResults(
@Multipart(value="condition",
type=MediaType.APPLICATION_JSON) EmployeeCondition condition,
@Multipart(value="firstResult") int firstResult,
@Multipart(value="maxResults") int maxResults);
-------------------------------------------------------------------------
After try...
Success method signature is
@POST
@Path("/findEmployeePagingResults")
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Produces(MediaType.APPLICATION_JSON)
List<Employee> findEmployeePagingResults(
@Multipart(value="condition",
type=MediaType.APPLICATION_JSON) EmployeeCondition condition,
@Multipart(value="firstResult",
type=MediaType.TEXT_PLAIN) int firstResult,
@Multipart(value="maxResults",
type=MediaType.TEXT_PLAIN) int maxResults);
---------------------------------------------------------------------------
This problem occur cuz:
MultipartProvider.java: line 369
MessageBodyWriter<T> r = mc.getProviders().getMessageBodyWriter(cls,
genericType, anns, mt);
"mc.getProviders()" returns NULL when CXF try to get MessageBodyWriter for
maxResults(that's the 3rd time this method called)
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