How to produce json response that consumes json object using spring and Hibernate

I am getting 415 Error. This is my mapping used for getting the json response

@RequestMapping(value="/details", method= RequestMethod.POST ,
        consumes= MediaType.APPLICATION_JSON_VALUE ,
        produces= MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<UserDetails> addUserDetails(@RequestBody 
                RegisterInput registerInput)throws ValidationException{

    if(registerInput==null || registerInput.getUserName()==null){
                throw new ValidationException("Input is not valid");
    }
    UserDetails userDetails=new UserDetails(registerInput.getUserName(),
                    registerInput.getFirstName(), registerInput.getLastName(), registerInput.getPassword());
    userDetailsService.addUserDetails(userDetails);
    return new ResponseEntity<UserDetails>(userDetails, HttpStatus.OK);
}

pom.xml

<dependency>
    <groupId>org.codehaus.jackson</groupId>
    <artifactId>jackson-mapper-asl</artifactId>
    <version>1.9.13</version>
</dependency>
<dependency>
    <groupId>org.codehaus.jackson</groupId>
    <artifactId>jackson-core-asl</artifactId>
    <version>1.9.13</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.4.4</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.4.4</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.4.4</version>
</dependency>

Help me with how to get the json response as it says error 415 in my case. Thanks in advance

where UserDetails is the POJO class and RegisterInput is to store the input and return json object. The following is my pom.