diff --git a/akka-actor/src/main/scala/akka/dispatch/Mailbox.scala b/akka-actor/src/main/scala/akka/dispatch/Mailbox.scala
index 1691713ea3..86b286e916 100644
--- a/akka-actor/src/main/scala/akka/dispatch/Mailbox.scala
+++ b/akka-actor/src/main/scala/akka/dispatch/Mailbox.scala
@@ -389,8 +389,8 @@ class CustomMailboxType(mailboxFQN: String) extends MailboxType {
 
   override def create(receiver: ActorContext): Mailbox = {
     val constructorSignature = Array[Class[_]](classOf[ActorContext])
-    ReflectiveAccess.createInstance[AnyRef](mailboxFQN, constructorSignature, Array[AnyRef](receiver)) match {
-      case Right(instance) ⇒ instance.asInstanceOf[Mailbox]
+    ReflectiveAccess.createInstance[Mailbox](mailboxFQN, constructorSignature, Array[AnyRef](receiver)) match {
+      case Right(instance) ⇒ instance
       case Left(exception) ⇒
         throw new IllegalArgumentException("Cannot instantiate mailbox [%s] due to: %s".
           format(mailboxFQN, exception.toString))
diff --git a/akka-actor/src/main/scala/akka/util/ReflectiveAccess.scala b/akka-actor/src/main/scala/akka/util/ReflectiveAccess.scala
index 0e738541ae..70b6fa5a03 100644
--- a/akka-actor/src/main/scala/akka/util/ReflectiveAccess.scala
+++ b/akka-actor/src/main/scala/akka/util/ReflectiveAccess.scala
@@ -100,7 +100,8 @@ object ReflectiveAccess {
    * Unwraps `InvocationTargetException` if its getTargetException is an `Exception`.
    * Other `Throwable`, such as `Error` is thrown.
    */
-  private def withErrorHandling[T](body: ⇒ Either[Exception, T]): Either[Exception, T] = {
+  @inline
+  private final def withErrorHandling[T](body: ⇒ Either[Exception, T]): Either[Exception, T] = {
     try {
       body
     } catch {