Missing Java getters for optional fields on akka.actor.Address (#28493)

akka-actor-tests/src/test/java/akka/actor/AddressTest.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2020 Lightbend Inc. <https://www.lightbend.com>
+ */
+
+package akka.actor;
+/*
+ * Copyright (C) 2009-2020 Lightbend Inc. <https://www.lightbend.com>
+ */
+
+import org.junit.Test;
+import org.scalatest.junit.JUnitSuite;
+
+import java.util.Optional;
+
+import static org.junit.Assert.assertEquals;
+
+public class AddressTest extends JUnitSuite {
+
+  @Test
+  public void portAddressAccessible() {
+    Address address = new Address("akka", "MySystem", "localhost", 2525);
+    assertEquals(Optional.of(2525), address.getPort());
+    assertEquals(Optional.of("localhost"), address.getHost());
+  }
+}

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

@@ -6,11 +6,12 @@ package akka.actor
 import java.net.URI
 import java.net.URISyntaxException
 import java.net.MalformedURLException
+import java.util.Optional
 
 import scala.annotation.tailrec
 import scala.collection.immutable
-
 import akka.annotation.InternalApi
+import scala.compat.java8.OptionConverters._
 
 /**
  * The address specifies the physical location under which an Actor can be
@@ -31,6 +32,16 @@ final case class Address private (protocol: String, system: String, host: Option
   def this(protocol: String, system: String) = this(protocol, system, None, None)
   def this(protocol: String, system: String, host: String, port: Int) = this(protocol, system, Option(host), Some(port))
 
+  /**
+   * Java API: The hostname if specified or empty optional if not
+   */
+  def getHost(): Optional[String] = host.asJava
+
+  /**
+   * Java API: The port if specified or empty optional if not
+   */
+  def getPort(): Optional[Integer] = port.asJava.asInstanceOf[Optional[Integer]]
+
   /**
    * Returns true if this Address is only defined locally. It is not safe to send locally scoped addresses to remote
    * hosts. See also [[akka.actor.Address#hasGlobalScope]].