Github user mateiz commented on the pull request:
https://github.com/apache/incubator-spark/pull/539#issuecomment-35172231
BTW according to
http://www.oracle.com/technetwork/articles/java/lambda-1984522.html for
example, lambdas should work with method overloading, in which case Java will
select the method that best matches the return type of your lambda. Look at
their Callable vs Runnable example. So I'd really recommend trying this without
the wrappers.
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. To do so, please top-post your response.
If your project does not have this feature enabled and wishes so, or if the
feature is enabled but not working, please contact infrastructure at
infrastruct...@apache.org or file a JIRA ticket with INFRA.
