ijuma commented on a change in pull request #9299:
URL: https://github.com/apache/kafka/pull/9299#discussion_r492077814
##########
File path: core/src/main/scala/kafka/admin/ZkSecurityMigrator.scala
##########
@@ -128,7 +129,7 @@ object ZkSecurityMigrator extends Logging {
// Now override any set system properties with explicitly-provided values
from the config file
// Emit INFO logs due to camel-case property names encouraging mistakes --
help people see mistakes they make
info(s"Found ${zkTlsConfigFileProps.size()} ZooKeeper client configuration
properties in file $filename")
- zkTlsConfigFileProps.asScala.foreach { case (key, value) =>
+ zkTlsConfigFileProps.asScala.forKeyValue { (key, value) =>
Review comment:
See
https://github.com/apache/kafka/commit/847ff8f55735568fe879d490af297e047b994f5e
for an explanation why `asScala` still makes sense when dealing with
`Properties`.
##########
File path: core/src/main/scala/kafka/utils/Implicits.scala
##########
@@ -46,4 +47,21 @@ object Implicits {
}
+ /**
+ * Exposes `foreachKv` which maps to `foreachEntry` in Scala 2.13 and
`foreach` in Scala 2.12
+ * (with the help of scala.collection.compat). `foreachEntry` avoids the
tuple allocation and
+ * is more efficient.
+ *
+ * This was not named `foreachEntry` to avoid `unused import` warnings in
Scala 2.13 (the implicit
+ * would not be triggered in Scala 2.13 since `Map.foreachEntry` would have
precedence).
+ */
+ @nowarn("cat=unused-imports")
+ implicit class MapExtensionMethods[K, V](private val self:
scala.collection.Map[K, V]) extends AnyVal {
+ import scala.collection.compat._
+ def foreachKv[U](f: (K, V) => U): Unit = {
Review comment:
Checked with @hachikuji and he's fine with this change.
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