How to enable declarative shadow variables ?

[kentbill]

I am trying the DSV and got the following exception message. How should I enable DSV in the SolverConfig? I couldn't find the relevant content in the documentation.

Exception in thread "main" java.lang.IllegalStateException: The member (endTime) on the entity class (com.dsvtesting.domain.Job) is a declarative shadow variable, but the declarative shadow variable preview feature is disabled.
Maybe enable declarative shadow variables in your SolverConfig?

Thanks!

[triceo]

Hello @kentbill.

You're not the first person asking. :-) We updated the docs to make it more clear, but they're not yet online - so hopefully the PR will give you enough information:

#1565

[kentbill]

Thank you! @triceo