Adds explicit ! method (#30004)

Needed for Scala 3

akka-actor-tests/src/test/scala/akka/actor/dispatch/DispatcherActorSpec.scala

@@ -12,7 +12,7 @@ import scala.concurrent.duration._
 
 import language.postfixOps
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.pattern.ask
 import akka.testkit.AkkaSpec
 import akka.testkit.DefaultTimeout

akka-actor-tests/src/test/scala/akka/actor/dispatch/PinnedActorSpec.scala

@@ -10,7 +10,7 @@ import scala.concurrent.Await
 
 import org.scalatest.BeforeAndAfterEach
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.pattern.ask
 import akka.testkit._
 import akka.testkit.AkkaSpec

akka-actor-tests/src/test/scala/akka/actor/dungeon/DispatchSpec.scala

@@ -6,7 +6,6 @@ package akka.actor.dungeon
 
 import akka.actor.Actor
 import akka.actor.Props
-import akka.actor.actorRef2Scala
 import akka.testkit._
 
 object DispatchSpec {

akka-actor-tests/src/test/scala/akka/dispatch/ControlAwareDispatcherSpec.scala

@@ -4,7 +4,7 @@
 
 package akka.dispatch
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.testkit.{ AkkaSpec, DefaultTimeout }
 
 object ControlAwareDispatcherSpec {

akka-actor-tests/src/test/scala/akka/dispatch/ExecutionContextSpec.scala

@@ -13,7 +13,6 @@ import scala.concurrent.duration._
 
 import akka.actor.Actor
 import akka.actor.Props
-import akka.actor.actorRef2Scala
 import akka.testkit.{ AkkaSpec, DefaultTimeout, TestLatch }
 import akka.testkit.CallingThreadDispatcher
 import akka.testkit.TestActorRef

akka-actor-tests/src/test/scala/akka/dispatch/ForkJoinPoolStarvationSpec.scala

@@ -6,7 +6,7 @@ package akka.dispatch
 
 import com.typesafe.config.ConfigFactory
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.testkit.{ AkkaSpec, ImplicitSender }
 
 object ForkJoinPoolStarvationSpec {

akka-actor-tests/src/test/scala/akka/dispatch/PriorityDispatcherSpec.scala

@@ -9,7 +9,7 @@ import scala.concurrent.duration._
 import com.typesafe.config.Config
 import language.postfixOps
 
-import akka.actor.{ actorRef2Scala, Actor, ActorSystem, Props }
+import akka.actor.{ Actor, ActorSystem, Props }
 import akka.testkit.{ AkkaSpec, DefaultTimeout }
 import akka.util.unused
 

akka-actor-tests/src/test/scala/akka/dispatch/StablePriorityDispatcherSpec.scala

@@ -9,7 +9,7 @@ import scala.concurrent.duration._
 import com.typesafe.config.Config
 import language.postfixOps
 
-import akka.actor.{ actorRef2Scala, Actor, ActorSystem, Props }
+import akka.actor.{ Actor, ActorSystem, Props }
 import akka.testkit.{ AkkaSpec, DefaultTimeout }
 import akka.util.unused
 

akka-actor-tests/src/test/scala/akka/event/AddressTerminatedTopicBenchSpec.scala

@@ -10,7 +10,6 @@ import akka.actor.Actor
 import akka.actor.ActorRef
 import akka.actor.ActorSystem
 import akka.actor.Props
-import akka.actor.actorRef2Scala
 import akka.testkit._
 
 object AddressTerminatedTopicBenchSpec {

akka-actor-tests/src/test/scala/akka/event/EventBusSpec.scala

@@ -10,7 +10,7 @@ import com.typesafe.config.{ Config, ConfigFactory }
 import language.postfixOps
 import org.scalatest.BeforeAndAfterEach
 
-import akka.actor.{ actorRef2Scala, Actor, ActorRef, ActorSystem, PoisonPill, Props }
+import akka.actor.{ Actor, ActorRef, ActorSystem, PoisonPill, Props }
 import akka.japi.Procedure
 import akka.testkit._
 

akka-actor-tests/src/test/scala/akka/event/jul/JavaLoggerSpec.scala

@@ -10,7 +10,7 @@ import scala.util.control.NoStackTrace
 
 import com.typesafe.config.ConfigFactory
 
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging, Props }
+import akka.actor.{ Actor, ActorLogging, Props }
 import akka.testkit.AkkaSpec
 
 @deprecated("Use SLF4J instead.", "2.6.0")

akka-actor-tests/src/test/scala/akka/io/TcpIntegrationSpecSupport.scala

@@ -11,7 +11,6 @@ import Tcp._
 
 import akka.actor.ActorRef
 import akka.actor.ActorSystem
-import akka.actor.actorRef2Scala
 import akka.dispatch.ExecutionContexts
 import akka.io.Inet.SocketOption
 import akka.testkit.{ AkkaSpec, TestProbe }

akka-actor-tests/src/test/scala/akka/io/UdpConnectedIntegrationSpec.scala

@@ -9,7 +9,6 @@ import java.net.InetSocketAddress
 import scala.concurrent.duration._
 
 import akka.actor.ActorRef
-import akka.actor.actorRef2Scala
 import akka.testkit.AkkaSpec
 import akka.testkit.ImplicitSender
 import akka.testkit.SocketUtil.temporaryServerAddresses

akka-actor-tests/src/test/scala/akka/io/UdpIntegrationSpec.scala

@@ -8,7 +8,6 @@ import java.net.DatagramSocket
 import java.net.InetSocketAddress
 
 import akka.actor.ActorRef
-import akka.actor.actorRef2Scala
 import akka.io.Inet._
 import akka.io.Udp._
 import akka.testkit.{ AkkaSpec, ImplicitSender, TestProbe }

akka-actor-tests/src/test/scala/akka/io/dns/internal/AsyncDnsManagerSpec.scala

@@ -10,7 +10,6 @@ import scala.collection.immutable.Seq
 
 import scala.annotation.nowarn
 
-import akka.actor.actorRef2Scala
 import akka.io.Dns
 import akka.io.dns.AAAARecord
 import akka.io.dns.CachePolicy.Ttl

akka-actor-tests/src/test/scala/akka/io/dns/internal/AsyncDnsResolverSpec.scala

@@ -11,7 +11,7 @@ import scala.concurrent.duration._
 
 import com.typesafe.config.{ Config, ConfigFactory, ConfigValueFactory }
 
-import akka.actor.{ actorRef2Scala, ActorRef, ExtendedActorSystem, Props }
+import akka.actor.{ ActorRef, ExtendedActorSystem, Props }
 import akka.actor.Status.Failure
 import akka.io.SimpleDnsCache
 import akka.io.dns.{ AAAARecord, ARecord, DnsSettings, SRVRecord }

akka-actor-tests/src/test/scala/akka/io/dns/internal/DnsClientSpec.scala

@@ -10,7 +10,6 @@ import java.util.concurrent.atomic.AtomicBoolean
 import scala.collection.immutable.Seq
 
 import akka.actor.Props
-import akka.actor.actorRef2Scala
 import akka.io.Udp
 import akka.io.dns.{ RecordClass, RecordType }
 import akka.io.dns.internal.DnsClient.{ Answer, Question4 }

akka-actor-tests/src/test/scala/akka/io/dns/internal/TcpDnsClientSpec.scala

@@ -9,7 +9,6 @@ import java.net.InetSocketAddress
 import scala.collection.immutable.Seq
 
 import akka.actor.Props
-import akka.actor.actorRef2Scala
 import akka.io.Tcp
 import akka.io.Tcp.{ Connected, PeerClosed, Register }
 import akka.io.dns.{ RecordClass, RecordType }

akka-actor-tests/src/test/scala/akka/pattern/CircuitBreakerSpec.scala

@@ -16,7 +16,6 @@ import scala.util.Success
 import scala.util.Try
 
 import akka.actor.ActorSystem
-import akka.actor.actorRef2Scala
 import akka.testkit._
 
 object CircuitBreakerSpec {

akka-actor-tests/src/test/scala/akka/pattern/CircuitBreakerStressSpec.scala

@@ -14,7 +14,6 @@ import akka.actor.Actor
 import akka.actor.ActorLogging
 import akka.actor.Props
 import akka.actor.Status.Failure
-import akka.actor.actorRef2Scala
 import akka.testkit.AkkaSpec
 import akka.testkit.ImplicitSender
 

akka-actor-tests/src/test/scala/akka/pattern/PatternSpec.scala

@@ -10,7 +10,7 @@ import scala.concurrent.duration._
 
 import language.postfixOps
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.testkit.{ AkkaSpec, TestLatch }
 
 object PatternSpec {

akka-actor-tests/src/test/scala/akka/pattern/StatusReplySpec.scala

@@ -10,7 +10,6 @@ import scala.concurrent.duration._
 import org.scalatest.concurrent.ScalaFutures
 
 import akka.Done
-import akka.actor.actorRef2Scala
 import akka.testkit.AkkaSpec
 import akka.testkit.TestException
 import akka.testkit.TestProbe

akka-actor-tests/src/test/scala/akka/routing/BalancingSpec.scala

@@ -12,7 +12,7 @@ import scala.concurrent.duration._
 
 import org.scalatest.BeforeAndAfterEach
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.actor.ActorRef
 import akka.testkit.{ AkkaSpec, ImplicitSender, TestLatch }
 

akka-actor-tests/src/test/scala/akka/routing/BroadcastSpec.scala

@@ -8,7 +8,7 @@ import java.util.concurrent.atomic.AtomicInteger
 
 import scala.concurrent.Await
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.pattern.ask
 import akka.testkit.{ AkkaSpec, DefaultTimeout, ImplicitSender, TestLatch }
 

akka-actor-tests/src/test/scala/akka/routing/ConfiguredLocalRoutingSpec.scala

@@ -13,7 +13,7 @@ import com.typesafe.config.Config
 import language.postfixOps
 
 import akka.ConfigurationException
-import akka.actor.{ actorRef2Scala, Actor, ActorRef, Deploy, Props }
+import akka.actor.{ Actor, ActorRef, Deploy, Props }
 import akka.actor.ActorPath
 import akka.actor.ActorSystem
 import akka.actor.ExtendedActorSystem

akka-actor-tests/src/test/scala/akka/routing/ConsistentHashingRouterSpec.scala

@@ -10,7 +10,6 @@ import scala.concurrent.ExecutionContextExecutor
 import akka.actor.Actor
 import akka.actor.ActorRef
 import akka.actor.Props
-import akka.actor.actorRef2Scala
 import akka.pattern.ask
 import akka.routing.ConsistentHashingRouter.ConsistentHashMapping
 import akka.routing.ConsistentHashingRouter.ConsistentHashable

akka-actor-tests/src/test/scala/akka/routing/RandomSpec.scala

@@ -11,7 +11,7 @@ import scala.concurrent.duration._
 
 import language.postfixOps
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.pattern.ask
 import akka.testkit.{ AkkaSpec, DefaultTimeout, ImplicitSender, TestLatch }
 

akka-actor-tests/src/test/scala/akka/routing/ResizerSpec.scala

@@ -10,7 +10,7 @@ import scala.concurrent.duration._
 import com.typesafe.config.{ Config, ConfigFactory }
 import language.postfixOps
 
-import akka.actor.{ actorRef2Scala, Actor, ActorRef, ActorSystem, Props }
+import akka.actor.{ Actor, ActorRef, ActorSystem, Props }
 import akka.pattern.ask
 import akka.testkit._
 import akka.testkit.TestEvent._

akka-actor-tests/src/test/scala/akka/routing/RoundRobinSpec.scala

@@ -15,7 +15,6 @@ import akka.actor.Actor
 import akka.actor.ActorRef
 import akka.actor.Props
 import akka.actor.Terminated
-import akka.actor.actorRef2Scala
 import akka.pattern.ask
 import akka.testkit._
 

akka-actor-tests/src/test/scala/akka/routing/RouteeCreationSpec.scala

@@ -10,7 +10,6 @@ import akka.actor.Actor
 import akka.actor.ActorIdentity
 import akka.actor.Identify
 import akka.actor.Props
-import akka.actor.actorRef2Scala
 import akka.testkit.AkkaSpec
 
 class RouteeCreationSpec extends AkkaSpec {

akka-actor-tests/src/test/scala/akka/routing/ScatterGatherFirstCompletedSpec.scala

@@ -10,7 +10,7 @@ import java.util.concurrent.atomic.AtomicInteger
 import scala.concurrent.Await
 import scala.concurrent.duration._
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.actor.ActorSystem
 import akka.actor.Status
 import akka.pattern.ask

akka-actor-tests/src/test/scala/akka/routing/SmallestMailboxSpec.scala

@@ -8,7 +8,7 @@ import java.util.concurrent.ConcurrentHashMap
 
 import scala.concurrent.Await
 
-import akka.actor.{ actorRef2Scala, Actor, Props }
+import akka.actor.{ Actor, Props }
 import akka.testkit.{ AkkaSpec, DefaultTimeout, ImplicitSender, TestLatch }
 
 class SmallestMailboxSpec extends AkkaSpec with DefaultTimeout with ImplicitSender {

akka-actor-tests/src/test/scala/akka/routing/TailChoppingSpec.scala

@@ -9,7 +9,7 @@ import java.util.concurrent.atomic.AtomicInteger
 import scala.concurrent.Await
 import scala.concurrent.duration._
 
-import akka.actor.{ actorRef2Scala, Actor, ActorRef, ActorSystem, Props }
+import akka.actor.{ Actor, ActorRef, ActorSystem, Props }
 import akka.actor.Status.Failure
 import akka.pattern.{ ask, AskTimeoutException }
 import akka.testkit._

akka-actor-tests/src/test/scala/akka/serialization/DisabledJavaSerializerWarningSpec.scala

@@ -9,7 +9,6 @@ import java.nio.{ ByteBuffer, ByteOrder }
 import scala.concurrent.duration._
 
 import akka.actor.ExtendedActorSystem
-import akka.actor.actorRef2Scala
 import akka.testkit._
 
 object DisabledJavaSerializerWarningSpec {

akka-actor/src/main/mima-filters/2.6.12.backwards.excludes/29985-actorRef-tell.excludes

@@ -0,0 +1 @@
+ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.actor.ActorRef.!")

akka-actor/src/main/scala/akka/actor/ActorRef.scala

@@ -7,6 +7,7 @@ package akka.actor
 import java.util.concurrent.ConcurrentHashMap
 
 import scala.annotation.tailrec
+import scala.annotation.nowarn
 import scala.collection.immutable
 import scala.util.control.NonFatal
 
@@ -103,6 +104,7 @@ object ActorRef {
  * about the exact actor incarnation you can use the ``ActorPath`` as key because
  * the unique id of the actor is not taken into account when comparing actor paths.
  */
+@nowarn("msg=deprecated")
 abstract class ActorRef extends java.lang.Comparable[ActorRef] with Serializable {
   scalaRef: InternalActorRef with ActorRefScope =>
 
@@ -128,6 +130,22 @@ abstract class ActorRef extends java.lang.Comparable[ActorRef] with Serializable
    */
   final def tell(msg: Any, sender: ActorRef): Unit = this.!(msg)(sender)
 
+  /**
+   * Scala API: Sends a one-way asynchronous message. E.g. fire-and-forget semantics.
+   * <p/>
+   *
+   * If invoked from within an actor then the actor reference is implicitly passed on as the implicit 'sender' argument.
+   * <p/>
+   *
+   * This actor 'sender' reference is then available in the receiving actor in the 'sender()' member variable,
+   * if invoked from within an Actor. If not then no sender is available.
+   * <pre>
+   *   actor ! message
+   * </pre>
+   * <p/>
+   */
+  def !(message: Any)(implicit sender: ActorRef = Actor.noSender): Unit
+
   /**
    * Forwards the message and passes the original sender actor as the sender.
    *
@@ -167,6 +185,7 @@ abstract class ActorRef extends java.lang.Comparable[ActorRef] with Serializable
  * There are implicit conversions in package.scala
  * from ActorRef -&gt; ScalaActorRef and back
  */
+@deprecated("tell method is now provided by ActorRef trait", "2.6.13")
 trait ScalaActorRef { ref: ActorRef with InternalActorRef with ActorRefScope =>
 
   /**
@@ -184,7 +203,6 @@ trait ScalaActorRef { ref: ActorRef with InternalActorRef with ActorRefScope =>
    * <p/>
    */
   def !(message: Any)(implicit sender: ActorRef = Actor.noSender): Unit
-
 }
 
 /**
@@ -233,6 +251,7 @@ private[akka] trait RepointableRef extends ActorRefScope {
  *
  * DO NOT USE THIS UNLESS INTERNALLY WITHIN AKKA!
  */
+@nowarn("msg=deprecated")
 @InternalApi private[akka] abstract class InternalActorRef extends ActorRef with ScalaActorRef { this: ActorRefScope =>
   /*
    * Actor life-cycle management, invoked only internally (in response to user requests via ActorContext).

akka-actor/src/main/scala/akka/actor/RepointableActorRef.scala

@@ -179,7 +179,7 @@ private[akka] class RepointableActorRef(
 
   def children: immutable.Iterable[ActorRef] = lookup.childrenRefs.children
 
-  def !(message: Any)(implicit sender: ActorRef = Actor.noSender) = underlying.sendMessage(message, sender)
+  def !(message: Any)(implicit sender: ActorRef = Actor.noSender): Unit = underlying.sendMessage(message, sender)
 
   def sendSystemMessage(message: SystemMessage) = underlying.sendSystemMessage(message)
 

akka-actor/src/main/scala/akka/actor/package.scala

@@ -7,6 +7,8 @@ package akka
 import language.implicitConversions
 
 package object actor {
+  @deprecated("implicit conversion is obsolete", "2.6.13")
   @inline implicit final def actorRef2Scala(ref: ActorRef): ScalaActorRef = ref.asInstanceOf[ScalaActorRef]
+  @deprecated("implicit conversion is obsolete", "2.6.13")
   @inline implicit final def scala2ActorRef(ref: ScalaActorRef): ActorRef = ref.asInstanceOf[ActorRef]
 }

akka-actor/src/main/scala/akka/dispatch/Mailboxes.scala

@@ -15,7 +15,7 @@ import scala.util.control.NonFatal
 import com.typesafe.config.{ Config, ConfigFactory }
 
 import akka.ConfigurationException
-import akka.actor.{ actorRef2Scala, Actor, ActorRef, ActorSystem, DeadLetter, Deploy, DynamicAccess, Props }
+import akka.actor.{ Actor, ActorRef, ActorSystem, DeadLetter, Deploy, DynamicAccess, Props }
 import akka.dispatch.sysmsg.{
   EarliestFirstSystemMessageList,
   LatestFirstSystemMessageList,

akka-actor/src/main/scala/akka/event/EventBus.scala

@@ -10,7 +10,7 @@ import java.util.concurrent.atomic.AtomicReference
 
 import scala.collection.immutable
 
-import akka.actor.{ actorRef2Scala, ActorRef, ActorSystem }
+import akka.actor.{ ActorRef, ActorSystem }
 import akka.util.{ Subclassification, SubclassifiedIndex }
 import akka.util.Index
 

akka-actor/src/main/scala/akka/event/EventStream.scala

@@ -10,7 +10,7 @@ import scala.annotation.tailrec
 
 import scala.annotation.nowarn
 
-import akka.actor.{ actorRef2Scala, ActorRef, ActorSystem }
+import akka.actor.{ ActorRef, ActorSystem }
 import akka.event.Logging.simpleName
 import akka.util.Subclassification
 

akka-actor/src/main/scala/akka/event/jul/JavaLogger.scala

@@ -8,7 +8,6 @@ import java.util.logging
 
 import akka.actor.Actor
 import akka.actor.ActorSystem
-import akka.actor.actorRef2Scala
 import akka.dispatch.RequiresMessageQueue
 import akka.event.DummyClassForStringSources
 import akka.event.EventStream

akka-actor/src/main/scala/akka/io/InetAddressDnsResolver.scala

@@ -17,7 +17,7 @@ import scala.util.{ Failure, Success, Try }
 import scala.annotation.nowarn
 import com.typesafe.config.Config
 
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging }
+import akka.actor.{ Actor, ActorLogging }
 import akka.actor.Status
 import akka.annotation.InternalApi
 import akka.io.dns.AAAARecord

akka-actor/src/main/scala/akka/io/UdpConnection.scala

@@ -12,7 +12,7 @@ import java.nio.channels.SelectionKey._
 import scala.annotation.tailrec
 import scala.util.control.NonFatal
 
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging, ActorRef }
+import akka.actor.{ Actor, ActorLogging, ActorRef }
 import akka.actor.Status.Failure
 import akka.dispatch.{ RequiresMessageQueue, UnboundedMessageQueueSemantics }
 import akka.io.SelectionHandler._

akka-actor/src/main/scala/akka/io/UdpListener.scala

@@ -11,7 +11,7 @@ import java.nio.channels.SelectionKey._
 import scala.annotation.tailrec
 import scala.util.control.NonFatal
 
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging, ActorRef }
+import akka.actor.{ Actor, ActorLogging, ActorRef }
 import akka.dispatch.{ RequiresMessageQueue, UnboundedMessageQueueSemantics }
 import akka.io.Inet.DatagramChannelCreator
 import akka.io.SelectionHandler._

akka-actor/src/main/scala/akka/io/WithUdpSend.scala

@@ -9,7 +9,7 @@ import java.nio.channels.{ DatagramChannel, SelectionKey }
 
 import scala.util.control.NonFatal
 
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging, ActorRef }
+import akka.actor.{ Actor, ActorLogging, ActorRef }
 import akka.io.SelectionHandler._
 import akka.io.Udp.{ CommandFailed, Send }
 import akka.io.dns.DnsProtocol

akka-actor/src/main/scala/akka/io/dns/internal/AsyncDnsManager.scala

@@ -13,7 +13,7 @@ import scala.concurrent.duration.Duration
 import scala.annotation.nowarn
 import com.typesafe.config.Config
 
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging, ActorRefFactory, Deploy, ExtendedActorSystem, Props, Timers }
+import akka.actor.{ Actor, ActorLogging, ActorRefFactory, Deploy, ExtendedActorSystem, Props, Timers }
 import akka.annotation.InternalApi
 import akka.dispatch.{ RequiresMessageQueue, UnboundedMessageQueueSemantics }
 import akka.io.{ Dns, DnsExt, DnsProvider }

akka-actor/src/main/scala/akka/io/dns/internal/AsyncDnsResolver.scala

@@ -12,7 +12,7 @@ import scala.concurrent.Future
 import scala.util.Try
 import scala.util.control.NonFatal
 
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging, ActorRef, ActorRefFactory }
+import akka.actor.{ Actor, ActorLogging, ActorRef, ActorRefFactory }
 import akka.annotation.InternalApi
 import akka.io.SimpleDnsCache
 import akka.io.dns._

akka-actor/src/main/scala/akka/io/dns/internal/DnsClient.scala

@@ -12,7 +12,7 @@ import scala.util.Try
 
 import scala.annotation.nowarn
 
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging, ActorRef, NoSerializationVerificationNeeded, Props, Stash }
+import akka.actor.{ Actor, ActorLogging, ActorRef, NoSerializationVerificationNeeded, Props, Stash }
 import akka.actor.Status.Failure
 import akka.annotation.InternalApi
 import akka.io.{ IO, Tcp, Udp }

akka-actor/src/main/scala/akka/io/dns/internal/TcpDnsClient.scala

@@ -7,7 +7,7 @@ package akka.io.dns.internal
 import java.net.InetSocketAddress
 
 import akka.AkkaException
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging, ActorRef, Stash }
+import akka.actor.{ Actor, ActorLogging, ActorRef, Stash }
 import akka.annotation.InternalApi
 import akka.io.Tcp
 import akka.io.dns.internal.DnsClient.Answer

akka-actor/src/main/scala/akka/pattern/HandleBackoff.scala

@@ -4,7 +4,7 @@
 
 package akka.pattern
 
-import akka.actor.{ actorRef2Scala, Actor, ActorRef, Props }
+import akka.actor.{ Actor, ActorRef, Props }
 import akka.annotation.InternalApi
 
 /**

akka-actor/src/main/scala/akka/pattern/PipeToSupport.scala

@@ -12,7 +12,7 @@ import scala.util.{ Failure, Success }
 
 import language.implicitConversions
 
-import akka.actor.{ actorRef2Scala, Actor, ActorRef, Status }
+import akka.actor.{ Actor, ActorRef, Status }
 import akka.actor.ActorSelection
 import akka.util.unused
 

akka-actor/src/main/scala/akka/pattern/internal/BackoffOnStopSupervisor.scala

@@ -6,7 +6,7 @@ package akka.pattern.internal
 
 import scala.concurrent.duration.FiniteDuration
 
-import akka.actor.{ actorRef2Scala, Actor, ActorLogging, OneForOneStrategy, Props, SupervisorStrategy, Terminated }
+import akka.actor.{ Actor, ActorLogging, OneForOneStrategy, Props, SupervisorStrategy, Terminated }
 import akka.actor.SupervisorStrategy.{ Directive, Escalate }
 import akka.annotation.InternalApi
 import akka.pattern.{

akka-actor/src/main/scala/akka/routing/Listeners.scala

@@ -6,7 +6,7 @@ package akka.routing
 
 import java.util.{ Set, TreeSet }
 
-import akka.actor.{ actorRef2Scala, Actor, ActorRef }
+import akka.actor.{ Actor, ActorRef }
 
 sealed trait ListenerMessage
 final case class Listen(listener: ActorRef) extends ListenerMessage

akka-actor/src/main/scala/akka/routing/RoutedActorCell.scala

@@ -18,7 +18,6 @@ import akka.actor.PoisonPill
 import akka.actor.Props
 import akka.actor.SupervisorStrategy
 import akka.actor.Terminated
-import akka.actor.actorRef2Scala
 import akka.dispatch.Envelope
 import akka.dispatch.MessageDispatcher
 import akka.util.ccompat._

akka-actor/src/main/scala/akka/util/MessageBuffer.scala

@@ -4,7 +4,7 @@
 
 package akka.util
 
-import akka.actor.{ actorRef2Scala, ActorRef, Dropped }
+import akka.actor.{ ActorRef, Dropped }
 import akka.annotation.InternalApi
 import akka.japi.function.Procedure2
 

akka-cluster-metrics/src/test/scala/akka/cluster/metrics/ClusterMetricsExtensionSpec.scala

@@ -7,7 +7,6 @@ package akka.cluster.metrics
 import scala.concurrent.duration._
 import scala.language.postfixOps
 
-import akka.actor._
 import akka.cluster.Cluster
 import akka.cluster.metrics.StandardMetrics._
 import akka.testkit._

akka-cluster-sharding/src/multi-jvm/scala/akka/cluster/sharding/ClusterShardingMinMembersSpec.scala

@@ -6,7 +6,6 @@ package akka.cluster.sharding
 
 import scala.concurrent.duration._
 
-import akka.actor._
 import akka.cluster.MemberStatus
 import akka.cluster.sharding.ShardCoordinator.ShardAllocationStrategy
 import akka.cluster.sharding.ShardRegion.{ ClusterShardingStats, GetClusterShardingStats }

akka-cluster-sharding/src/multi-jvm/scala/akka/cluster/sharding/ClusterShardingRolePartitioningSpec.scala

@@ -8,7 +8,6 @@ import scala.concurrent.duration._
 
 import com.typesafe.config.{ Config, ConfigFactory }
 
-import akka.actor._
 import akka.cluster.sharding.ShardRegion.{ ClusterShardingStats, GetClusterShardingStats }
 import akka.testkit._
 

akka-cluster/src/multi-jvm/scala/akka/cluster/DowningWhenOtherHasQuarantinedThisActorSystemSpec.scala

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2020 Lightbend Inc. <https://www.lightbend.com>
+ * Copyright (C) 2009-2021 Lightbend Inc. <https://www.lightbend.com>
  */
 
 package akka.cluster

akka-cluster/src/multi-jvm/scala/akka/cluster/SplitBrainQuarantineSpec.scala

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2020 Lightbend Inc. <https://www.lightbend.com>
+ * Copyright (C) 2009-2021 Lightbend Inc. <https://www.lightbend.com>
  */
 
 package akka.cluster

akka-persistence/src/test/scala/akka/persistence/journal/ReplayFilterSpec.scala

@@ -4,7 +4,6 @@
 
 package akka.persistence.journal
 
-import akka.actor._
 import akka.persistence.JournalProtocol
 import akka.persistence.PersistentRepr
 import akka.testkit._

akka-stream-tests/src/test/scala/akka/stream/scaladsl/FlowSpec.scala

@@ -16,7 +16,6 @@ import com.typesafe.config.ConfigFactory
 import org.reactivestreams.{ Publisher, Subscriber }
 
 import akka.NotUsed
-import akka.actor._
 import akka.stream._
 import akka.stream.impl._
 import akka.stream.testkit._

akka-testkit/src/main/scala/akka/testkit/TestActors.scala

@@ -4,7 +4,7 @@
 
 package akka.testkit
 
-import akka.actor.{ actorRef2Scala, Actor, ActorRef, Props }
+import akka.actor.{ Actor, ActorRef, Props }
 
 /**
  * A collection of common actor patterns used in tests.

akka-testkit/src/main/scala/akka/testkit/TestEventListener.scala

@@ -11,7 +11,7 @@ import scala.concurrent.duration.Duration
 import scala.reflect.ClassTag
 import scala.util.matching.Regex
 
-import akka.actor.{ actorRef2Scala, ActorSystem, DeadLetter, UnhandledMessage }
+import akka.actor.{ ActorSystem, DeadLetter, UnhandledMessage }
 import akka.actor.Dropped
 import akka.actor.NoSerializationVerificationNeeded
 import akka.dispatch.sysmsg.{ SystemMessage, Terminate }

akka-testkit/src/test/scala/akka/testkit/TestActorsSpec.scala

@@ -4,7 +4,6 @@
 
 package akka.testkit
 
-import akka.actor.actorRef2Scala
 class TestActorsSpec extends AkkaSpec with ImplicitSender {
 
   import TestActors.{ echoActorProps, forwardActorProps }