> Thanks for your help. I don't understand this sentence " *Also if you do
> not transfer RequirementImpl directly but instead an interface that
> RequirementImpl implements, then GWT Compiler needs to see the class+source
> of RequirementImpl so it can treat RequirementImpl as a possible concrete
> type that might be transferred. " *What do you understand?
>
What I meant is that you might not use RequirementImpl directly as a field
type if RequirementImpl implements an interface. For example it you have
interface Requirement extends Serializable {
}
class RequirementImpl implements Requirement {
...
}
class SomeClassToTransferWithGWT implements Serializable {
private Requirement requirement;
....
}
then RequirementImpl must be visible to the GWT compiler.
> I had also read stuff on whiteList but I don't understand what means this
> WhiteList? Do you know this?
>
Whitelist is just the list of classes that GWT-RPC allows to transfer. It
is generated by GWT by looking at the classes reachable from your GWT-RPC
service. To add something explicitly to the "whitelist" you need to add a
new dummy method to your GWT-RPC service that uses the classes you want to
add to the whitelist as parameter or return type.
-- J.
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