The bug is related to the fact that initially, we were supporting slash-separated paths to projects. E.g. if the group id was `a.b.c` then we did checked for `a/b/c` folder. At certain point we've started building stubs with the `groupid` folder as such e.g. `a.b.c/artifact-id`. This is where the bug comes in. For Maven and Gradle we're using ant patterns for copying files. We're only providing the slash-separated ant pattern. With this fix, we're backward compatible (we're leaving the slash-separated one) and we're adding support for dot-delimited group id.
fixes gh-555
2740496d86