Class Cast Exception in CXF-RS service while migration from 6.2.1 to 6.3.0

Issue

• While migrating CXF RS application from 6.2.1 to 6.3.0, facing below exception in logs

javax.ws.rs.BadRequestException: HTTP 400 Bad Request
    at org.apache.cxf.jaxrs.utils.SpecExceptions.toBadRequestException(SpecExceptions.java:84)
    at org.apache.cxf.jaxrs.utils.ExceptionUtils.toBadRequestException(ExceptionUtils.java:121)
    at org.apache.cxf.jaxrs.provider.json.JSONProvider.readFrom(JSONProvider.java:268)
    at org.apache.cxf.jaxrs.utils.JAXRSUtils.readFromMessageBodyReader(JAXRSUtils.java:1342)
    at org.apache.cxf.jaxrs.utils.JAXRSUtils.readFromMessageBody(JAXRSUtils.java:1293)
    at org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameter(JAXRSUtils.java:826)
    at org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameters(JAXRSUtils.java:789)
    at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:212)
    at org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.handleMessage(JAXRSInInterceptor.java:77)
    at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:309)
    at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
    at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:254)
    at org.apache.cxf.transport.http_jetty.JettyHTTPDestination.doService(JettyHTTPDestination.java:234)
    at org.apache.cxf.transport.http_jetty.JettyHTTPHandler.handle(JettyHTTPHandler.java:76)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1129)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1065)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
    at org.eclipse.jetty.server.Server.handle(Server.java:499)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:258)
    at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassCastException: Cannot cast com.mycompany.model.TransactionResults to com.mycompany.model.Request
    at java.lang.Class.cast(Unknown Source)
    at org.apache.cxf.jaxrs.provider.json.JSONProvider.readFrom(JSONProvider.java:255)
    ... 23 more

• This works well in Red Hat Fuse 6.2.1.