I moved the src/examples directory into it's own groovy-examples repo a couple of weeks ago but only now finished off a few additional pieces. Most of you will know that that folder just contains additional examples of using Groovy that we have made sure don't break as we have evolved Groovy. Not everyone builds those examples during their local feedback testing workflows, so having it in CI doesn't change things much but cleans up the source tree and dependencies.
There is now a github mirror and CI build which builds those source files. Please keep an eye on that CI build as you make changes. At the moment it is a nightly build under the Quality group built against the latest snapshot build of master, running only on JDK8 and just running on ci.groovy-lang.org. Feel free to make whatever changes you think are needed. Cheers, Paul.