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@override annotation not working correctly javac version _ 1.7.0_25

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Hi!

This code should output:

Run method overridden in Task class
overridden method run() in PeriodicTask class


but I'm having this : 

# javac  -version
javac 1.7.0_25

# javac CollectionTest.java
CollectionTest.java:18: error: incompatible types
    @Override
     ^
  required: Annotation
  found:    Override
CollectionTest.java:27: error: incompatible types
    @Override
     ^
  required: Annotation
  found:    Override
2 errors



/**
 * Java program to demonstrate how to override method in Java.
 * Overridden method are resolved during runtime based upon type of object
 * @author Javin
 */
public class CollectionTest {
  
    public static void main(String args[]) {
      Runnable task = new Task();
      task.run(); //call overridden method in Task  
      task = new PeriodicTask();
      task.run(); //calls overridden method in PeriodicTas
    }
  
  
}

class Task implements Runnable{
    @Override
    public void run() {
        System.out.println("Run method overridden in Task class");
    } 
}

class PeriodicTask extends Task{ 
    @Override
    public void run() {
        System.err.println("overridden method run() in PeriodicTask class");
    }
}

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@override annotation not working correctly javac version _ 1.7.0_25 Y HA <yuriha@gmail.com> - 2013-12-05 14:42 -0800
  Re: @override annotation not working correctly javac version _ 1.7.0_25 Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-12-05 18:25 -0500
    Re: @override annotation not working correctly javac version _ 1.7.0_25 Y HA <yuriha@gmail.com> - 2013-12-05 16:13 -0800
      Re: @override annotation not working correctly javac version _ 1.7.0_25 Y HA <yuriha@gmail.com> - 2013-12-05 17:00 -0800
      Re: @override annotation not working correctly javac version _ 1.7.0_25 Y HA <yuriha@gmail.com> - 2013-12-05 17:03 -0800
        Re: @override annotation not working correctly javac version _ 1.7.0_25 Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-12-05 20:42 -0500
          Re: @override annotation not working correctly javac version _ 1.7.0_25 Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-12-07 19:15 +0000
  Re: @override annotation not working correctly javac version _ 1.7.0_25 "John B. Matthews" <nospam@nospam.invalid> - 2013-12-05 21:49 -0500
  Use of @Override when implementing interfaces (was: @override annotation not working...) Fredrik Jonson <fredrik@jonson.org> - 2013-12-06 07:01 +0000
    Re: Use of @Override when implementing interfaces Silvio <silvio@internet.com> - 2013-12-06 09:10 +0100
      Re: Use of @Override when implementing interfaces Y HA <yuriha@gmail.com> - 2013-12-06 07:08 -0800
        another error with @Override  with another code Y HA <yuriha@gmail.com> - 2013-12-06 07:25 -0800
          Re: another error with @Override  with another code "John B. Matthews" <nospam@nospam.invalid> - 2013-12-06 11:29 -0500
            Re: another error with @Override  with another code Y HA <yuriha@gmail.com> - 2013-12-06 09:21 -0800
              Re: another error with @Override  with another code "John B. Matthews" <nospam@nospam.invalid> - 2013-12-07 00:26 -0500
                Re: another error with @Override  with another code Knute Johnson <september@knutejohnson.com> - 2013-12-06 21:57 -0800
                Re: another error with @Override  with another code Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-12-07 08:44 -0500
              Re: another error with @Override  with another code "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2013-12-07 11:12 +0000
        Re: Use of @Override when implementing interfaces Stanimir Stamenkov <s7an10@netscape.net> - 2013-12-07 16:32 +0200
          Re: Use of @Override when implementing interfaces Y HA <yuriha@gmail.com> - 2013-12-08 12:02 -0800
            Re: Use of @Override when implementing interfaces Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-12-08 21:27 +0000
              Re: Use of @Override when implementing interfaces Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-12-08 23:43 +0000
            Re: Use of @Override when implementing interfaces Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-12-08 16:45 -0500
    Re: Use of @Override when implementing interfaces Jeff Higgins <jeff@invalid.invalid> - 2013-12-06 09:51 -0500
    Re: Use of @Override when implementing interfaces leif.roar@invalid.com (Leif Roar Moldskred) - 2013-12-06 09:36 -0600
      Re: Use of @Override when implementing interfaces Y HA <yuriha@gmail.com> - 2013-12-06 07:41 -0800
      Re: Use of @Override when implementing interfaces markspace <markspace@nospam.nospam> - 2013-12-06 08:18 -0800
    Re: Use of @Override when implementing interfaces v_borchert@despammed.com (Volker Borchert) - 2013-12-07 07:14 +0000
      Re: Use of @Override when implementing interfaces Wayne <nospam@all.invalid> - 2013-12-07 04:46 -0500
        Re: Use of @Override when implementing interfaces v_borchert@despammed.com (Volker Borchert) - 2013-12-07 10:54 +0000
      Re: Use of @Override when implementing interfaces Fredrik Jonson <fredrik@jonson.org> - 2013-12-09 12:59 +0000
    Re: Use of @Override when implementing interfaces Arne Vajhøj <arne@vajhoej.dk> - 2013-12-09 21:06 -0500
      Re: Use of @Override when implementing interfaces "John B. Matthews" <nospam@nospam.invalid> - 2013-12-11 00:55 -0500

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