SpringBoot and JSON using PUT - json

Question

I'm facing a little situation using SpringBoot and a PUT request. All is working fine concerning GET. I try to send a PUT request passing an object as JSON (testing using postman).
Maven configuration:
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.1.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
Here is my POJO:
public final class Request
{
private String name;
private Boolean lock;
//...public getter and setters...
}
Here is my Controller:
#RestController
#RequestMapping("/controller")
public class Controller
{
#RequestMapping(value = "locking", method = RequestMethod.PUT, consumes = MediaType.APPLICATION_JSON_VALUE)
public static synchronized Object lock(Request request)
{
System.out.println("name:"+request.getName());
System.out.println("lock:"+request.getLock());
return null;
}
}
My input is (using postman):
http://localhost:8080/controller/locking
request type: PUT
Content-Type: application/json
Content:{"name":"test","lock":true}
My output is:
name:null
lock:null
Again a simple GET works just fine.
Any idea on what I'm missing here?