Re: GWT 2.5 Java 5 runtime(!) compatibility

On 30/10/2012 16:08, Jens wrote:
>
> Still, other then saying that it is so because it has been said so - I still don't see
> an argument why the gwt-servlet.jar would technically require Java 1.6.
>
>
> True, but some day you have to make the cut. Technically they probably have used a Java
> 1.6 API somewhere thats not available in Java 1.5. So if you compile using target 1.5 you
> still can't use the library because a Java 1.5 JVM does not provide the needed API. In
> that case you would get a NoSuchMethodError at runtime.
>
> A good example for this is String.isEmpty() which has been introduced in Java 1.6.

Another example can be the usage of @Override on interface method implementations, etc.
If they don't use Java 6-specific features, I suppose you can build our own jar with Java
5, that's the advantage of open source...

--
Philippe Lhoste
-- (near) Paris -- France
-- http://Phi.Lho.free.fr
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