Remove warnings in persistence query module (#26749)

akka-persistence-query/src/main/scala/akka/persistence/query/PersistenceQuery.scala

@@ -8,6 +8,7 @@ import akka.actor._
 import akka.annotation.InternalApi
 import akka.persistence.query.scaladsl.ReadJournal
 import akka.persistence.{ PersistencePlugin, PluginProvider }
+import akka.util.unused
 import com.typesafe.config.{ Config, ConfigFactory }
 
 import scala.reflect.ClassTag
@@ -63,7 +64,7 @@ class PersistenceQuery(system: ExtendedActorSystem)
    * read journal configuration entry.
    */
   final def getReadJournalFor[T <: javadsl.ReadJournal](
-      clazz: Class[T],
+      @unused clazz: Class[T],
       readJournalPluginId: String,
       readJournalPluginConfig: Config): T =
     pluginFor(readJournalPluginId, readJournalPluginConfig).javadslPlugin.asInstanceOf[T]

akka-persistence-query/src/main/scala/akka/persistence/query/journal/leveldb/AllPersistenceIdsPublisher.scala

@@ -13,6 +13,7 @@ import akka.persistence.journal.leveldb.LeveldbJournal
 import akka.stream.actor.ActorPublisher
 import akka.stream.actor.ActorPublisherMessage.Cancel
 import akka.stream.actor.ActorPublisherMessage.Request
+import com.github.ghik.silencer.silent
 
 /**
  * INTERNAL API
@@ -28,6 +29,7 @@ private[akka] object AllPersistenceIdsPublisher {
  * INTERNAL API
  */
 // FIXME needs a be rewritten as a GraphStage (since 2.5.0)
+@silent // Re-write as part of https://github.com/akka/akka/issues/26187
 private[akka] class AllPersistenceIdsPublisher(liveQuery: Boolean, maxBufSize: Int, writeJournalPluginId: String)
     extends ActorPublisher[String]
     with DeliveryBuffer[String]

akka-persistence-query/src/main/scala/akka/persistence/query/journal/leveldb/DeliveryBuffer.scala

@@ -5,10 +5,12 @@
 package akka.persistence.query.journal.leveldb
 
 import akka.stream.actor.ActorPublisher
+import com.github.ghik.silencer.silent
 
 /**
  * INTERNAL API
  */
+@silent // FIXME Re-write as part of https://github.com/akka/akka/issues/26187
 private[akka] trait DeliveryBuffer[T] { _: ActorPublisher[T] =>
 
   var buf = Vector.empty[T]

akka-persistence-query/src/main/scala/akka/persistence/query/journal/leveldb/EventsByPersistenceIdPublisher.scala

@@ -13,6 +13,7 @@ import akka.stream.actor.ActorPublisherMessage.Cancel
 import akka.stream.actor.ActorPublisherMessage.Request
 import akka.persistence.journal.leveldb.LeveldbJournal
 import akka.persistence.query.{ EventEnvelope, Sequence }
+import com.github.ghik.silencer.silent
 
 /**
  * INTERNAL API
@@ -55,7 +56,7 @@ private[akka] object EventsByPersistenceIdPublisher {
 /**
  * INTERNAL API
  */
-// FIXME needs a be rewritten as a GraphStage (since 2.5.0)
+@silent // FIXME Re-write as part of https://github.com/akka/akka/issues/26187
 private[akka] abstract class AbstractEventsByPersistenceIdPublisher(
     val persistenceId: String,
     val fromSequenceNr: Long,

akka-persistence-query/src/main/scala/akka/persistence/query/journal/leveldb/EventsByTagPublisher.scala

@@ -15,6 +15,7 @@ import akka.persistence.journal.leveldb.LeveldbJournal
 import akka.persistence.query.{ EventEnvelope, Sequence }
 import akka.persistence.journal.leveldb.LeveldbJournal.ReplayTaggedMessages
 import akka.persistence.journal.leveldb.LeveldbJournal.ReplayedTaggedMessage
+import com.github.ghik.silencer.silent
 
 /**
  * INTERNAL API
@@ -44,7 +45,7 @@ private[akka] object EventsByTagPublisher {
 /**
  * INTERNAL API
  */
-// FIXME needs a be rewritten as a GraphStage
+@silent // FIXME Re-write as part of https://github.com/akka/akka/issues/26187
 private[akka] abstract class AbstractEventsByTagPublisher(
     val tag: String,
     val fromOffset: Long,

akka-persistence-query/src/main/scala/akka/persistence/query/journal/leveldb/scaladsl/LeveldbReadJournal.scala

@@ -17,7 +17,8 @@ import akka.persistence.query.journal.leveldb.{
 import akka.persistence.query.scaladsl.{ ReadJournal, _ }
 import akka.persistence.query.{ EventEnvelope, NoOffset, Offset, Sequence }
 import akka.stream.scaladsl.Source
-import akka.util.ByteString
+import akka.util.{ unused, ByteString }
+import com.github.ghik.silencer.silent
 import com.typesafe.config.Config
 
 import scala.concurrent.duration._
@@ -36,7 +37,8 @@ import scala.concurrent.duration._
  * absolute path corresponding to the identifier, which is `"akka.persistence.query.journal.leveldb"`
  * for the default [[LeveldbReadJournal#Identifier]]. See `reference.conf`.
  */
-class LeveldbReadJournal(system: ExtendedActorSystem, config: Config)
+@silent // FIXME Re-write as part of https://github.com/akka/akka/issues/26187
+class LeveldbReadJournal(@unused system: ExtendedActorSystem, config: Config)
     extends ReadJournal
     with PersistenceIdsQuery
     with CurrentPersistenceIdsQuery

akka-persistence-query/src/test/scala/akka/persistence/query/DummyReadJournal.scala

@@ -8,6 +8,7 @@ import akka.NotUsed
 import akka.stream.scaladsl.Source
 import com.typesafe.config.{ Config, ConfigFactory }
 import akka.actor.ExtendedActorSystem
+import akka.util.unused
 
 /**
  * Use for tests only!
@@ -61,13 +62,13 @@ class DummyReadJournalProvider(dummyValue: String) extends ReadJournalProvider {
     new DummyReadJournalForJava(scaladslReadJournal)
 }
 
-class DummyReadJournalProvider2(sys: ExtendedActorSystem) extends DummyReadJournalProvider
+class DummyReadJournalProvider2(@unused sys: ExtendedActorSystem) extends DummyReadJournalProvider
 
-class DummyReadJournalProvider3(sys: ExtendedActorSystem, conf: Config) extends DummyReadJournalProvider
+class DummyReadJournalProvider3(@unused sys: ExtendedActorSystem, @unused conf: Config) extends DummyReadJournalProvider
 
-class DummyReadJournalProvider4(sys: ExtendedActorSystem, conf: Config, confPath: String)
+class DummyReadJournalProvider4(@unused sys: ExtendedActorSystem, @unused conf: Config, @unused confPath: String)
     extends DummyReadJournalProvider
 
-class DummyReadJournalProvider5(sys: ExtendedActorSystem) extends DummyReadJournalProvider
+class DummyReadJournalProvider5(@unused sys: ExtendedActorSystem) extends DummyReadJournalProvider
 
-class CustomDummyReadJournalProvider5(sys: ExtendedActorSystem) extends DummyReadJournalProvider("custom")
+class CustomDummyReadJournalProvider5(@unused sys: ExtendedActorSystem) extends DummyReadJournalProvider("custom")

akka-persistence-query/src/test/scala/akka/persistence/query/journal/leveldb/EventsByPersistenceIdSpec.scala

@@ -53,7 +53,7 @@ class EventsByPersistenceIdSpec extends AkkaSpec(EventsByPersistenceIdSpec.confi
     }
 
     "find existing events" in {
-      val ref = setup("a")
+      setup("a")
 
       val src = queries.currentEventsByPersistenceId("a", 0L, Long.MaxValue)
       src
@@ -68,7 +68,7 @@ class EventsByPersistenceIdSpec extends AkkaSpec(EventsByPersistenceIdSpec.confi
     }
 
     "find existing events up to a sequence number" in {
-      val ref = setup("b")
+      setup("b")
       val src = queries.currentEventsByPersistenceId("b", 0L, 2L)
       src.map(_.event).runWith(TestSink.probe[Any]).request(5).expectNext("b-1", "b-2").expectComplete()
     }
@@ -116,28 +116,28 @@ class EventsByPersistenceIdSpec extends AkkaSpec(EventsByPersistenceIdSpec.confi
     }
 
     "return empty stream for empty journal" in {
-      val ref = setupEmpty("i")
+      setupEmpty("i")
 
       val src = queries.currentEventsByPersistenceId("i", 0L, Long.MaxValue)
       src.map(_.event).runWith(TestSink.probe[Any]).request(1).expectComplete()
     }
 
     "return empty stream for journal from 0 to 0" in {
-      val ref = setup("k1")
+      setup("k1")
 
       val src = queries.currentEventsByPersistenceId("k1", 0L, 0L)
       src.map(_.event).runWith(TestSink.probe[Any]).request(1).expectComplete()
     }
 
     "return empty stream for empty journal from 0 to 0" in {
-      val ref = setupEmpty("k2")
+      setupEmpty("k2")
 
       val src = queries.currentEventsByPersistenceId("k2", 0L, 0L)
       src.map(_.event).runWith(TestSink.probe[Any]).request(1).expectComplete()
     }
 
     "return empty stream for journal from seqNo greater than highestSeqNo" in {
-      val ref = setup("l")
+      setup("l")
 
       val src = queries.currentEventsByPersistenceId("l", 4L, 3L)
       src.map(_.event).runWith(TestSink.probe[Any]).request(1).expectComplete()

akka-persistence-query/src/test/scala/akka/persistence/query/journal/leveldb/EventsByTagSpec.scala

@@ -39,7 +39,7 @@ class ColorTagger extends WriteEventAdapter {
   val colors = Set("green", "black", "blue")
   override def toJournal(event: Any): Any = event match {
     case s: String =>
-      var tags = colors.foldLeft(Set.empty[String])((acc, c) => if (s.contains(c)) acc + c else acc)
+      val tags = colors.foldLeft(Set.empty[String])((acc, c) => if (s.contains(c)) acc + c else acc)
       if (tags.isEmpty) event
       else Tagged(event, tags)
     case _ => event
@@ -115,7 +115,7 @@ class EventsByTagSpec extends AkkaSpec(EventsByTagSpec.config) with Cleanup with
 
     "find events from offset (exclusive)" in {
       val greenSrc = queries.currentEventsByTag(tag = "green", offset = Sequence(2L))
-      val probe = greenSrc
+      greenSrc
         .runWith(TestSink.probe[Any])
         .request(10)
         // note that banana is not included, since exclusive offset
@@ -150,7 +150,7 @@ class EventsByTagSpec extends AkkaSpec(EventsByTagSpec.config) with Cleanup with
 
     "find events from offset (exclusive)" in {
       val greenSrc = queries.eventsByTag(tag = "green", offset = Sequence(2L))
-      val probe = greenSrc
+      greenSrc
         .runWith(TestSink.probe[Any])
         .request(10)
         // note that banana is not included, since exclusive offset

akka-persistence-query/src/test/scala/akka/persistence/query/journal/leveldb/TestActor.scala

@@ -19,7 +19,7 @@ class TestActor(override val persistenceId: String) extends PersistentActor {
   import TestActor.DeleteCmd
 
   val receiveRecover: Receive = {
-    case evt: String =>
+    case _: String =>
   }
 
   val receiveCommand: Receive = {

project/AkkaDisciplinePlugin.scala

@@ -34,13 +34,11 @@ object AkkaDisciplinePlugin extends AutoPlugin with ScalafixSupport {
     "akka-multi-node-testkit",
     "akka-persistence-tck",
     "akka-persistence-typed",
-    "akka-persistence-query",
     "akka-remote",
     "akka-stream-testkit",
     "akka-stream-tests",
     "akka-stream-tests-tck",
-    "akka-testkit"
+    "akka-testkit")
-  )
 
   val strictProjects = Set("akka-discovery", "akka-protobuf", "akka-coordination")