Added support for List@DataObject and Set@DataObject in result handler and method parameters.
Added support for null in method parameters and result handler (except collections).
This pull request depends on https://github.com/vert-x3/vertx-codegen/pull/30
Added support for List@DataObject and Set@DataObject in result handler and method parameters. Added support for null in method parameters and result handler (except collections). This pull request depends on https://github.com/vert-x3/vertx-codegen/pull/30