Eclipse not showing deprecated warning?

As per Javadocs:

public Date (int year, int month, int day) 
This constructor was deprecated in API level 1.

Date date = new Date(year,month,date);

This constructor was deprecated in API Level 1 but my Eclipse isn't giving me deprecation warning in the Android project I'm creating. What can be the issue? Is there a silly mistake that I'm making?

I've compiled the project at 4.0 version.
I've checked the Lint preferences and it's fine.
I've not set an @SuppressWarnings, so that is ruled out.

This is the code that I'm using:

import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;

import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.DatePickerDialog.OnDateSetListener;
import android.app.Dialog;
import android.content.Context;
import android.graphics.Paint;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;

@Override
    protected Dialog onCreateDialog(int id) {
        Calendar mCalen = Calendar.getInstance();
        int day = mCalen.get(Calendar.DAY_OF_MONTH);
        int month = mCalen.get(Calendar.MONTH);
        int year = mCalen.get(Calendar.YEAR);
        return new DatePickerDialog(this, new OnDateSetListener() {

            @Override
            public void onDateSet(DatePicker view, int year, int monthOfYear,
                    int dayOfMonth) {
                String newDate = new StringBuilder().append(dayOfMonth)
                        .append("/").append(monthOfYear + 1).append("/")
                        .append(year).toString();
                date = null;
                timeStamp = null;
                dateStamp = 0;
                date = newDate;
                timeStamp = new Date(year, monthOfYear, dayOfMonth);
                dateStamp = timeStamp.getTime();
                dateTextView.setText(date);
            }
        }, year, month, day);
    }

回答1:

Have a look at:

Preferences | Java | Compiler | Errors/Warnings | Deprecated and Restricted API

Make sure Deprecated API is set to Warning. Ensure the code which is deprecated has a @Deprecated annotation either at the class / method or in the JavaDoc.

回答2:

Check for following:

Properties > Java > Compiler > Errors/Warnings > Deprecated and restricted API

Select Warning for Deprecated API.

回答3:

You have to turned on warnings of your related project from project properties. To do this follow these steps:

Right click on your project and go in project properties.
Select Java Compiler tab and expand it.
Now you see error/warning tab. Now enable that check box and change project setting.

or remove check box from project specific error/warnings settings and click on Android Lint Preferences tab and search for deprecated Serverity.