in sbt-idea-compiler-indices/src/main/scala-sbt-0.13/org.jetbrains.sbt.indices/IndexingClassfileManager.scala [23:29]
override def complete(success: Boolean): Unit = {
if (success) classesInfo.add(ClassesInfo(generatedStaging.get, deletedStaging.get))
generatedStaging.remove()
deletedStaging.remove()
inherited.complete(success)
}