Github user ueshin commented on a diff in the pull request:
https://github.com/apache/spark/pull/3342#discussion_r20536231
--- Diff: project/SparkBuild.scala ---
@@ -101,14 +101,10 @@ object SparkBuild extends PomBuild {
v.split("(\\s+|,)").filterNot(_.isEmpty).map(_.trim.replaceAll("-P",
"")).toSeq
}
- if (profiles.exists(_.contains("scala-"))) {
- profiles
- } else if (System.getProperty("scala-2.11") != null) {
- profiles ++ Seq("scala-2.11")
- } else {
- println("Enabled default scala profile")
- profiles ++ Seq("scala-2.10")
--- End diff --
Yes, the profile `scala-2.10` is activated by the condition:
```
<property><name>!scala-2.11</name></property>
```
so Maven will turn it on if the property `scala-2.11` is null or empty.
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