spring mvc ajax bad request error

Spring Controller Method :

    @RequestMapping(value="/checklist/{id}",method=RequestMethod.PUT, consumes=MediaType.APPLICATION_JSON_VALUE , produces=MediaType.APPLICATION_JSON_VALUE)
    @ResponseBody
    public Checklist update(@RequestBody Checklist checklist, @PathVariable("id") int id)
    {
        checklist.setId(id);
        return service.update(checklist);

    }

JavaScript AJAX code:

    var checklist={name:$('#newName').val(), details:$('#newDetails').val()};
                    $.ajax({                //send updated item values to
                        method:'put',
                        url:'/tracker/checklist/'+$(editingItem).attr('id'),
                        contentType:'application/json',
                        dataType:'json',
                        data:checklist,
                        success:function(data)
                        {
                            console.log(data);
                            $('#myModal').modal('hide');
                        }
                    });

Checklist Model:

package com.tracker.web.models;

import java.util.Date;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;

import org.hibernate.annotations.CreationTimestamp;
import org.hibernate.annotations.UpdateTimestamp;

@Entity
@Table(name="checklists")
public class Checklist {

    @Id @GeneratedValue(strategy=GenerationType.AUTO)
    private int id;

    private int item_order;
    private String name;
    private String details;
    private String phase;
    private String completed;
    private String skipped_note;
    private Date completed_on;
    private int completed_by;

    @Temporal(TemporalType.TIMESTAMP)
    @CreationTimestamp
    private Date created_at;

    @Temporal(TemporalType.TIMESTAMP)
    @UpdateTimestamp
    private Date updated_at;

    @ManyToOne
    private Event event;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getItem_order() {
        return item_order;
    }

    public void setItem_order(int item_order) {
        this.item_order = item_order;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getDetails() {
        return details;
    }

    public void setDetails(String details) {
        this.details = details;
    }

    public String getPhase() {
        return phase;
    }

    public void setPhase(String phase) {
        this.phase = phase;
    }

    public String getCompleted() {
        return completed;
    }

    public void setCompleted(String completed) {
        this.completed = completed;
    }

    public String getSkipped_note() {
        return skipped_note;
    }

    public void setSkipped_note(String skipped_note) {
        this.skipped_note = skipped_note;
    }

    public Date getCompleted_on() {
        return completed_on;
    }

    public void setCompleted_on(Date completed_on) {
        this.completed_on = completed_on;
    }

    public int getCompleted_by() {
        return completed_by;
    }

    public void setCompleted_by(int completed_by) {
        this.completed_by = completed_by;
    }

    public Date getCreated_at() {
        return created_at;
    }

    public void setCreated_at() {
        this.created_at = new Date();
    }

    public Date getUpdated_at() {
        return updated_at;
    }

    public void setUpdated_at() {
        this.updated_at = new Date();
    }

    public Event getEvent() {
        return event;
    }

    public void setEvent(Event event) {
        this.event = event;
    }

}

I am using Jquery 1.11. when i use with 'GET' instead of 'PUT' 'method' on client side and 'consumes' on server side, it works. even i tried with JSON.stringify while sending sending. i am using jackson on server side to convert data into json