RuntimeException: MessageBodyReader implementation was not found for BufferedInMultiPart in JAX RS
===

Im getting the following RuntimeException when trying to make JAX RS call of multipart.

java.lang.RuntimeException: A javax.ws.rs.ext.MessageBodyReader implementation was not found for class org.a
pache.wink.common.model.multipart.BufferedInMultiPart type and text/html;charset=utf-8 media type.  Verify t
hat all entity providers are correctly registered.  Add a custom javax.ws.rs.ext.MessageBodyReader provider
to handle the type and media type if a JAX-RS entity provider does not currently exist.
        at org.apache.wink.client.internal.handlers.ClientResponseImpl.readEntity(ClientResponseImpl.java:12
2)
        at org.apache.wink.client.internal.handlers.ClientResponseImpl.getEntity(ClientResponseImpl.java:65)
        at org.apache.wink.client.internal.handlers.ClientResponseImpl.getEntity(ClientResponseImpl.java:52)

Can anyone help me in figuring out what is the cause of the exception. It happens occasionally only.  