fix compilation errors

akka-cluster-sharding/src/main/scala/akka/cluster/sharding/Shard.scala

@@ -1061,7 +1061,7 @@ private[akka] class Shard(
    * of active entities.
    */
   @InternalStableApi
-  def entityCreated(@unused id: EntityId): Int = entities.nrActiveEntities
+  def entityCreated(@unused id: EntityId): Int = entities.nrActiveEntities()
 
   // ===== buffering while busy saving a start or stop when remembering entities =====
   def appendToMessageBuffer(id: EntityId, msg: Any, snd: ActorRef): Unit = {

akka-persistence-typed-tests/src/test/java/jdocs/akka/persistence/typed/ReplicatedAuctionExampleTest.java

@@ -90,7 +90,9 @@ public class ReplicatedAuctionExampleTest extends JUnitSuite {
 }
 
 // #setup
-class AuctionEntity extends ReplicatedEventSourcedBehavior<Command, Event, AuctionState> {
+class AuctionEntity
+    extends ReplicatedEventSourcedBehavior<
+        AuctionEntity.Command, AuctionEntity.Event, AuctionEntity.AuctionState> {
 
   public static ReplicaId R1 = new ReplicaId("R1");
   public static ReplicaId R2 = new ReplicaId("R2");

akka-persistence-typed-tests/src/test/scala/akka/persistence/typed/crdt/CounterSpec.scala

@@ -44,8 +44,8 @@ object CounterSpec {
               case PlainCounter.Decrement =>
                 Effect.persist(Counter.Updated(-1))
               case Get(replyTo) =>
-                context.log.info("Get request. {} {}", state.value, state.value.longValue())
-                replyTo ! state.value.longValue()
+                context.log.info("Get request. {} {}", state.value, state.value.longValue)
+                replyTo ! state.value.longValue
                 Effect.none
             },
           (counter, event) => {