Question

I have a annoying problem with @Override annotations in Eclipse. Often when i import working projects on a new PC, Eclipse marks some of the @Override annotations as wrong. If i remove the annotations everything is fine and Eclipse also indicates that the methods are overriding the parents methods but adding the Override annotation causes the error again. I am currently working on an Android project so it might be a problem with Android and not with Eclipse..

Answer 1

This is most likely because you are switching between Java 1.5 and Java 1.6. In 1.5 you couldn’t mark interface implementations with @Override, but you can in 1.6.

A quick Google search turned up this good explanation of the difference in this annotation between the two versions: http://www.techienuggets.com/CommentDetail?tx=38155

Semantics of @Override is different in
JDK 1.5 and JDK 1.6. In JDK 1.5, the
@Override annotation is not allowed
for implementations of methods
declared in an interface, while they
are allowed in JDK 1.6. For more
information, see:

https://bugs.java.com/bugdatabase/view_bug?bug_id=5008260
https://bugs.java.com/bugdatabase/view_bug?bug_id=6399361
http://blogs.oracle.com/ahe/?entry=override

It is fact that the description of the
Override annotation was not updated
in the JDK API docs. This has been
reported as a bug:

https://bugs.java.com/bugdatabase/view_bug?bug_id=6501053bugdatabase/view_bug.do?bug_id=6501053