distributed-ledger

When deploying fabric in enterprise's intranet (without the ability to access internet), users maybe upload chaincode builder images and chaincode runtime images to a private docker registry which requires authentication when pulling images.
I think fabric can support this scenario by adding configuration in chaincode section of core.yaml, such as:

chaincode:
    registry:
        

In Scala codegen, ContractId[T] = T.ContractId. However, in Java codegen, T.ContractId <: ContractId<T> but not vice versa, which means that (cidT: ContractId<T>).exerciseX(...) doesn't work, and ((T.ContractId) cidT) can fail too.

• add a test illustrating this distinction for Java codegen using illTyped, and that a decoded-from-Value ContractId<T> may not even be `instanceof T

• Blocked by #2378

As mentioned in [this comment] we temporary allow users to send extra bytes, but we print warning message. This was done to help SDK-developers.

After everything is stabilized we have to remove this and return an error every time something with extra bytes was sent