If you have a class that you are using to transport RPC params then it
needs to implement IsSerializable, right.
So then if your IsSerializable class does not have a default empty
constructor (i.e. no params) you will see this message.
On Wednesday, December 17, 2014 at 8:34:35 PM UTC+11, Ed wrote:
>
> I have added the following async remote service method (using 2.7.0.):
> TransportTokenResponse<ProductDto>
> findActiveDeclarationsOfActiveMember(TransportTokenRequest<Void> request);
>
> TransportTokenResponse, just like TransportTokenRequest are interfaces
> with both an abstract subclass and one concrete class.
> The GWT console shows the following error:
> ERROR] 'com.ited.lang.transporttoken.TransportTokenResponse' has no
> instantiable subtypes
>
> I am aware that using interfaces in RPC methods is tricky and can result
> in bloat code, but in this case, I only have one concrete class, so why
> does GWT complain and can't use the concrete class (it's in the same
> package as the interface) ?
> I noticed this is a new 2.7.0. warning, maybe it has something to do with
> this
>
>
> The details of TransportTokenResponse,:
>
> public abstract class TransportTokenResponseBase<T> implements
> TransportTokenResponse<T> {
> private static final long serialVersionUID = 1L;
>
> protected TransportTokenResponseBase() {
> }
> }
>
>
> public final class SimpleTransportTokenResponse<T> extends
> TransportTokenResponseBase<T> {
> private static final long serialVersionUID = 1L;
> SimpleTransportTokenResponse() {
> }
> }
>
>
>
>
>
>
>
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