passing Java bean using a JSON binding

The service is exposed over JSON binding and will return a java bean as a response but as per my knowledge the bean is not properly converted to json object as shown in the smd below:

{"SMDVersion":".1","objectName":"EmployeeBOService","serviceType":"JSON-RPC","serviceURL":"http://localhost:8080/employee-det/EmployeeJSONService","methods":[{"name":"fetchEmployeeData","parameters":[

]}]}

Response:
[object Object]

Console output is:
Apr 4, 2008 11:23:07 AM com.metaparadigm.jsonrpc.BeanSerializer analyzeBean
INFO: analyzing com.infosys.poc.employeedata.EmployeeData