GWT does not emulate the clone() method on Object, so when you compile client-side code there is no method for your clone() to override.
Paul mmoossen wrote: > hi Sri! > > i thought it was something like that but: > - i am using java 1.6 > - clone() is a method in Object and not in the interfac, and > - as said, eclipse wants that annotation (if not i get a warning) and > i get an error only when compiling client code. > > thanks anyhow > Michael > > On May 25, 12:40 pm, Sripathi Krishnan <sripathi.krish...@gmail.com> > wrote: > >> I think it is the javac compiler failing, not GWTC. Also, I'd guess you are >> using JDK 1.5. >> >> In JDK 1.5, @Override annotation cannot be applied to methods that implement >> an interface; they can only be applied to a method that overrides a method >> from a class. In your case, the clone method is defined in an interface, and >> you are implementing it, not overriding it .. and hence the error. >> >> Java 6 onwards, you can apply the @Override annotation to methods that >> implement an interface.. so you won't get this warning. Strangely, using >> Java 6 compiler with source="1.5" does not trigger this error. >> >> Finally, eclipse is the third culprit. It automatically puts in those >> annotations, and I haven't yet figured out a way to tell it "don't put those >> annotations when I am implementing an interface".. >> >> --Sri >> >> On 25 May 2010 15:49, mmoossen <mmoos...@gmail.com> wrote: >> >> >> >> >>> Dear all, >>> >>> I have a serializable object that overrides the Object.clone() method >>> and implements the cloneable interface. >>> and i have the problem that eclipse (and me too) wants to have the >>> Override annotation but while compiling the GWT compiler fails with >>> following error message >>> >>> [java][ERROR] Line 175: The method clone() of type XXX must override >>> or implement a supertype method >>> >>> which sounds pretty much like a bug in the GWT compiler to me... i >>> mean, why does the GWT compiler care about those annotations? and more >>> over, why does it *FAIL*. >>> >>> could somebody explain the issue to me? >>> >>> thanks >>> Michael > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
