chetanmeh edited a comment on issue #3928: Replace List() occurrences with List.empty URL: https://github.com/apache/incubator-openwhisk/pull/3928#issuecomment-409273589 Given that this is a recurring work (see #3359) should we look into configuring a code style check plugin. For example [scapegoat][1] has a `PreferSeqEmpty` check which can flag such usage. Only issue is I [do not find a Gradle plugin](sksamuel/scapegoat#195) for it. But looking at [sbt plugin][2] it should be possible to add it directly via some scripting in our case [1]: https://github.com/sksamuel/scapegoat [2]: https://github.com/sksamuel/sbt-scapegoat/blob/master/src/main/scala/com/sksamuel/scapegoat/sbt/ScapegoatSbtPlugin.scala
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