Write an implementation of the interface class, in front of the method added @override actually error

It is said that this is the JDK problem, @Override is JDK5 already have, but there is a small bug, is not support the implementation of the interface, think this is not an override and JDK6 fixed the bug, @override can be added either to the method overrides of the parent class or to the implementation of the interface.
First make sure you have JDK 1.6 installed,
Then, modify the configuration in Eclipse, select 1.6 in the Windows->preferences-->java->compiler-->compiler compliance level,
, refresh the project, and recompile.
If still not, in the error project, the right mouse button select Properties-->java Compiler-->compiler compliance Level Select 1.6, refresh the project, recompile.

Write an implementation of the interface class, in front of the method added @override actually error