Remove dependencies on compatibility libraries

Continues the work started in #12543

These libraries were only needed to transition from Scala 2.12 to 2.13
and are no longer useful as all the necessary items are now available
in Scala 2.13.

changelog_begin
changelog_end

bazel-java-deps.bzl

@@ -174,8 +174,6 @@ def install_java_deps():
             "org.sangria-graphql:sangria_{}:2.0.1".format(scala_major_version),
             "org.sangria-graphql:sangria-spray-json_{}:1.0.2".format(scala_major_version),
             "org.scalacheck:scalacheck_{}:1.15.4".format(scala_major_version),
-            "org.scala-lang.modules:scala-collection-compat_{}:2.3.2".format(scala_major_version),
-            "org.scala-lang.modules:scala-java8-compat_{}:0.9.0".format(scala_major_version),
             "org.scala-lang.modules:scala-parallel-collections_{}:1.0.0".format(scala_major_version),
             "org.scalameta:munit_{}:0.7.26".format(scala_major_version),
             "org.scalactic:scalactic_{}:3.2.9".format(scala_major_version),

daml-lf/interpreter/BUILD.bazel

@@ -17,7 +17,6 @@ da_scala_library(
     srcs = glob(["src/main/**/*.scala"]),
     scala_deps = [
         "@maven//:io_spray_spray_json",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
         "@maven//:org_scalaz_scalaz_core",
         "@maven//:org_typelevel_paiges_core",
     ],
@@ -72,7 +71,6 @@ da_scala_test_suite(
         ],
     ),
     scala_deps = [
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
         "@maven//:org_scalacheck_scalacheck",
         "@maven//:org_scalatest_scalatest_core",
         "@maven//:org_scalatest_scalatest_matchers_core",

daml-lf/interpreter/src/main/scala/com/digitalasset/daml/lf/scenario/ScenarioLedger.scala

@@ -22,7 +22,7 @@ import Value._
 import com.daml.scalautil.Statement.discard
 
 import scala.annotation.tailrec
-import scala.collection.compat._
+import scala.collection.Factory
 import scala.collection.immutable
 
 /** An in-memory representation of a ledger for scenarios */

daml-lf/interpreter/src/main/scala/com/digitalasset/daml/lf/speedy/SValue.scala

@@ -17,7 +17,7 @@ import com.daml.scalautil.Statement.discard
 import com.daml.nameof.NameOf
 
 import scala.jdk.CollectionConverters._
-import scala.collection.compat._
+import scala.collection.Factory
 import scala.collection.immutable.TreeMap
 import scala.util.hashing.MurmurHash3
 

daml-lf/transaction-test-lib/BUILD.bazel

@@ -19,7 +19,6 @@ da_scala_library(
         "@maven//:org_scalacheck_scalacheck",
         "@maven//:org_scalaz_scalaz_core",
         "@maven//:org_scalaz_scalaz_scalacheck_binding",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
     ],
     scalacopts = lf_scalacopts_stricter,
     tags = ["maven_coordinates=com.daml:daml-lf-transaction-test-lib:__VERSION__"],

daml-lf/transaction-test-lib/src/main/scala/lf/value/test/TypedValueGenerators.scala

@@ -21,7 +21,7 @@ import iface.{
   Variant,
   PrimType => PT,
 }
-import scala.collection.compat._
+import scala.collection.Factory
 import scalaz.{@@, Order, Ordering, Tag}
 import scalaz.syntax.bitraverse._
 import scalaz.syntax.traverse._

daml-lf/validation/BUILD.bazel

@@ -15,7 +15,6 @@ da_scala_library(
     srcs = glob(["src/main/**/*.scala"]),
     scala_deps = [
         "@maven//:org_scalaz_scalaz_core",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
     ],
     scalacopts = lf_scalacopts_stricter,
     tags = ["maven_coordinates=com.daml:daml-lf-validation:__VERSION__"],

daml-lf/validation/src/main/scala/com/digitalasset/daml/lf/validation/TypeSubst.scala

@@ -7,7 +7,6 @@ import com.daml.lf.data.Ref.Name
 import com.daml.lf.language.Ast._
 import com.daml.lf.validation.Util._
 import com.daml.lf.validation.iterable.TypeIterable
-import scala.collection.compat.immutable.LazyList
 
 private[validation] object TypeSubst {
 

daml-script/runner/BUILD.bazel

@@ -30,7 +30,6 @@ da_scala_library(
         "@maven//:com_typesafe_akka_akka_stream",
         "@maven//:com_typesafe_akka_akka_parsing",
         "@maven//:io_spray_spray_json",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
         "@maven//:org_scalaz_scalaz_core",
         "@maven//:org_typelevel_paiges_core",
     ],

daml-script/runner/src/main/scala/com/digitalasset/daml/lf/engine/script/ledgerinteraction/IdeLedgerClient.scala

@@ -23,7 +23,6 @@ import scalaz.OneAnd._
 import scalaz.std.set._
 import scalaz.syntax.foldable._
 
-import scala.collection.compat.immutable.LazyList
 import scala.concurrent.{ExecutionContext, Future}
 import scala.util.{Failure, Success}
 

language-support/scala/bindings/BUILD.bazel

@@ -20,11 +20,9 @@ da_scala_library(
     ],
     scala_deps = [
         "@maven//:org_scalaz_scalaz_core",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
     ],
     scala_exports = [
         "@maven//:org_scalaz_scalaz_core",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
     ],
     tags = ["maven_coordinates=com.daml:bindings-scala:__VERSION__"],
     visibility = [
@@ -51,7 +49,6 @@ da_scala_test_suite(
     ],
     scala_deps = [
         "@maven//:com_chuusai_shapeless",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
         "@maven//:org_scalacheck_scalacheck",
         "@maven//:org_scalatest_scalatest_core",
         "@maven//:org_scalatest_scalatest_matchers_core",

language-support/scala/bindings/src/main/scala/com/digitalasset/ledger/client/binding/binding/Primitive.scala

@@ -15,7 +15,7 @@ import scalaz.syntax.std.boolean._
 import scalaz.syntax.tag._
 
 import scala.annotation.nowarn
-import scala.collection.compat._
+import scala.collection.Factory
 import scala.collection.{mutable, immutable => imm}
 
 sealed abstract class Primitive extends PrimitiveInstances {

language-support/scala/bindings/src/main/scala/com/digitalasset/ledger/client/binding/binding/Value.scala

@@ -12,7 +12,7 @@ import scalaz.std.option._
 import scalaz.syntax.traverse._
 
 import scala.annotation.tailrec
-import scala.collection.compat._
+import scala.collection.Factory
 import scala.{specialized => sp}
 
 sealed trait DamlCodecs // always include `object DamlCodecs` in implicit search

language-support/scala/codegen-sample-app/BUILD.bazel

@@ -48,7 +48,6 @@ da_scala_library(
     ],
     scala_deps = [
         "@maven//:org_scalaz_scalaz_core",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
     ],
     scalacopts = [
         "-Wconf:cat=unused-imports&site=com\\.daml\\.sample\\..*:s",

language-support/scala/codegen/BUILD.bazel

@@ -83,7 +83,6 @@ da_scala_test_suite(
     size = "small",
     srcs = glob(["src/test/scala/**/*.scala"]),
     scala_deps = [
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
         "@maven//:org_scalacheck_scalacheck",
         "@maven//:org_scalatest_scalatest_core",
         "@maven//:org_scalatest_scalatest_matchers_core",

ledger/caching/BUILD.bazel

@@ -10,9 +10,6 @@ load(
 da_scala_library(
     name = "caching",
     srcs = glob(["src/main/scala/**/*.scala"]),
-    scala_deps = [
-        "@maven//:org_scala_lang_modules_scala_java8_compat",
-    ],
     tags = ["maven_coordinates=com.daml:caching:__VERSION__"],
     visibility = [
         "//:__subpackages__",

ledger/caching/src/main/scala/com/daml/caching/CaffeineCache.scala

@@ -6,8 +6,8 @@ package com.daml.caching
 import com.daml.metrics.CacheMetrics
 import com.github.benmanes.caffeine.{cache => caffeine}
 
-import scala.compat.java8.FutureConverters
-import scala.compat.java8.OptionConverters._
+import scala.jdk.FutureConverters.CompletionStageOps
+import scala.jdk.OptionConverters.{RichOptional, RichOptionalLong}
 import scala.concurrent.Future
 
 object CaffeineCache {
@@ -41,7 +41,7 @@ object CaffeineCache {
   ) {
     installMetrics(cacheMetrics, cache.synchronous())
 
-    def get(key: Key): Future[Value] = FutureConverters.toScala(cache.get(key))
+    def get(key: Key): Future[Value] = cache.get(key).asScala
 
     def invalidate(key: Key): Unit = cache.synchronous().invalidate(key)
   }
@@ -70,7 +70,7 @@ object CaffeineCache {
   ): Unit = {
     metrics.registerSizeGauge(() => cache.estimatedSize())
     metrics.registerWeightGauge(() =>
-      cache.policy().eviction().asScala.flatMap(_.weightedSize.asScala).getOrElse(0)
+      cache.policy().eviction().toScala.flatMap(_.weightedSize.toScala).getOrElse(0)
     )
   }
 

ledger/ledger-api-auth/BUILD.bazel

@@ -14,8 +14,6 @@ da_scala_library(
     resources = glob(["src/main/resources/**/*"]),
     scala_deps = [
         "@maven//:io_spray_spray_json",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
-        "@maven//:org_scala_lang_modules_scala_java8_compat",
         "@maven//:org_scalaz_scalaz_core",
     ],
     tags = ["maven_coordinates=com.daml:ledger-api-auth:__VERSION__"],

ledger/ledger-api-auth/src/main/scala/com/digitalasset/ledger/api/auth/Authorizer.scala

@@ -19,7 +19,6 @@ import com.daml.error.definitions.LedgerApiErrors
 import io.grpc.StatusRuntimeException
 import scalapb.lenses.Lens
 
-import scala.collection.compat._
 import scala.concurrent.Future
 import scala.util.{Failure, Success, Try}
 

ledger/ledger-api-auth/src/main/scala/com/digitalasset/ledger/api/auth/interceptor/AuthorizationInterceptor.scala

@@ -12,7 +12,7 @@ import com.daml.logging.{ContextualizedLogger, LoggingContext}
 import com.daml.platform.server.api.validation.ErrorFactories
 import io.grpc._
 
-import scala.compat.java8.FutureConverters
+import scala.jdk.FutureConverters.CompletionStageOps
 import scala.concurrent.{ExecutionContext, Future}
 import scala.util.{Failure, Success, Try}
 
@@ -49,8 +49,9 @@ final class AuthorizationInterceptor(
         new ServerCall.Listener[Nothing]() {}
       }
 
-      FutureConverters
-        .toScala(authService.decodeMetadata(headers))
+      authService
+        .decodeMetadata(headers)
+        .asScala
         .flatMap(resolveAuthenticatedUserRights)
         .onComplete {
           case Failure(error: StatusRuntimeException) =>

ledger/ledger-api-domain/BUILD.bazel

@@ -54,8 +54,6 @@ da_scala_test_suite(
     scala_deps = [
         "@maven//:org_scalatest_scalatest",
         "@maven//:org_scalaz_scalaz_core",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
-        "@maven//:org_scala_lang_modules_scala_java8_compat",
     ],
     deps = [
         ":ledger-api-domain",

ledger/ledger-api-test-tool/BUILD.bazel

@@ -75,7 +75,6 @@ da_scala_binary(
             scala_deps = [
                 "@maven//:com_typesafe_akka_akka_actor",
                 "@maven//:com_typesafe_akka_akka_stream",
-                "@maven//:org_scala_lang_modules_scala_java8_compat",
                 "@maven//:org_scalameta_munit",
             ],
             visibility = ["//:__subpackages__"],

ledger/ledger-api-test-tool/src/main/scala/com/daml/ledger/api/testtool/infrastructure/ProtobufConverters.scala

@@ -5,7 +5,7 @@ package com.daml.ledger.api.testtool.infrastructure
 
 import com.google.protobuf
 
-import scala.compat.java8.DurationConverters._
+import scala.jdk.DurationConverters.{JavaDurationOps, ScalaDurationOps}
 
 object ProtobufConverters {
 

ledger/ledger-configuration/BUILD.bazel

@@ -44,8 +44,6 @@ da_scala_test_suite(
         "@maven//:org_scalatest_scalatest_shouldmatchers",
         "@maven//:org_scalatest_scalatest_wordspec",
         "@maven//:org_scalaz_scalaz_core",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
-        "@maven//:org_scala_lang_modules_scala_java8_compat",
     ],
     deps = [
         ":ledger-configuration",

ledger/ledger-configuration/src/test/suite/scala/com/daml/ledger/configuration/ConfigurationSpec.scala

@@ -8,7 +8,7 @@ import com.daml.ledger.configuration.protobuf.{ledger_configuration => proto}
 import org.scalatest.matchers.should.Matchers
 import org.scalatest.wordspec.AnyWordSpec
 
-import scala.compat.java8.DurationConverters._
+import scala.jdk.DurationConverters.ScalaDurationOps
 import scala.concurrent.duration.{DurationInt, FiniteDuration}
 import org.scalatest.prop.TableDrivenPropertyChecks._
 

ledger/ledger-grpc/BUILD.bazel

@@ -32,8 +32,6 @@ da_scala_test_suite(
     scala_deps = [
         "@maven//:org_scalatest_scalatest",
         "@maven//:org_scalaz_scalaz_core",
-        "@maven//:org_scala_lang_modules_scala_collection_compat",
-        "@maven//:org_scala_lang_modules_scala_java8_compat",
     ],
     deps = [
         ":ledger-grpc",

ledger/ledger-on-sql/BUILD.bazel

@@ -174,7 +174,6 @@ da_scala_test_suite(
     scala_deps = [
         "@maven//:com_typesafe_akka_akka_actor",
         "@maven//:com_typesafe_akka_akka_stream",
-        "@maven//:org_scala_lang_modules_scala_java8_compat",
         "@maven//:org_scalactic_scalactic",
         "@maven//:org_scalatest_scalatest_core",
         "@maven//:org_scalatest_scalatest_flatspec",

ledger/participant-integration-api/BUILD.bazel

@@ -92,7 +92,6 @@ scala_compile_deps = [
     "@maven//:com_typesafe_akka_akka_stream",
     "@maven//:org_playframework_anorm_anorm",
     "@maven//:org_playframework_anorm_anorm_tokenizer",
-    "@maven//:org_scala_lang_modules_scala_java8_compat",
     "@maven//:org_scalaz_scalaz_core",
     "@maven//:io_spray_spray_json",
 ]

ledger/participant-integration-api/src/main/scala/platform/apiserver/configuration/LedgerConfigurationProvisioner.scala

@@ -15,7 +15,7 @@ import com.daml.logging.{ContextualizedLogger, LoggingContext}
 import com.daml.platform.configuration.InitialLedgerConfiguration
 import com.daml.telemetry.{DefaultTelemetry, SpanKind, SpanName}
 
-import scala.compat.java8.FutureConverters
+import scala.jdk.FutureConverters.CompletionStageOps
 import scala.concurrent.ExecutionContext
 import scala.concurrent.duration.{Duration => ScalaDuration}
 import scala.util.{Failure, Success}
@@ -76,9 +76,9 @@ final class LedgerConfigurationProvisioner(
           ) { implicit telemetryContext =>
             val maxRecordTime =
               Timestamp.assertFromInstant(timeProvider.getCurrentTime.plusSeconds(60))
-            FutureConverters.toScala(
-              writeService.submitConfiguration(maxRecordTime, submissionId, initialConfiguration)
-            )
+            writeService
+              .submitConfiguration(maxRecordTime, submissionId, initialConfiguration)
+              .asScala
           }
           .onComplete {
             case Success(state.SubmissionResult.Acknowledged) =>

ledger/participant-integration-api/src/main/scala/platform/apiserver/services/ApiSubmissionService.scala

@@ -43,7 +43,7 @@ import com.daml.timer.Delayed
 import io.grpc.{Status, StatusRuntimeException}
 
 import scala.annotation.nowarn
-import scala.compat.java8.FutureConverters.CompletionStageOps
+import scala.jdk.FutureConverters.CompletionStageOps
 import scala.concurrent.{ExecutionContext, Future}
 import scala.util.control.NonFatal
 import scala.util.{Failure, Success, Try}
@@ -285,7 +285,7 @@ private[apiserver] final class ApiSubmissionService private[services] (
             submissionId = submissionId,
           )
     }
-  }.toScala
+  }.asScala
 
   private def submitTransaction(
       transactionInfo: CommandExecutionResult,

ledger/participant-integration-api/src/main/scala/platform/apiserver/services/admin/ApiConfigManagementService.scala

@@ -30,7 +30,7 @@ import com.daml.platform.server.api.validation.{ErrorFactories, FieldValidations
 import com.daml.telemetry.{DefaultTelemetry, TelemetryContext}
 import io.grpc.{ServerServiceDefinition, Status, StatusRuntimeException}
 
-import scala.compat.java8.FutureConverters._
+import scala.jdk.FutureConverters.CompletionStageOps
 import scala.concurrent.duration.{Duration, FiniteDuration}
 import scala.concurrent.{ExecutionContext, Future}
 import scala.util.{Failure, Success}
@@ -252,7 +252,7 @@ private[apiserver] object ApiConfigManagementService {
       val (maximumRecordTime, newConfiguration) = input
       writeConfigService
         .submitConfiguration(maximumRecordTime, submissionId, newConfiguration)
-        .toScala
+        .asScala
     }
 
     override def entries(offset: Option[LedgerOffset.Absolute]): Source[ConfigurationEntry, _] =

ledger/participant-integration-api/src/main/scala/platform/apiserver/services/admin/ApiPackageManagementService.scala

@@ -40,7 +40,7 @@ import scalaz.std.either._
 import scalaz.std.list._
 import scalaz.syntax.traverse._
 
-import scala.compat.java8.FutureConverters._
+import scala.jdk.FutureConverters.CompletionStageOps
 import scala.concurrent.{ExecutionContext, Future}
 import scala.util.Try
 
@@ -198,7 +198,7 @@ private[apiserver] object ApiPackageManagementService {
     override def submit(submissionId: Ref.SubmissionId, dar: Dar[Archive])(implicit
         telemetryContext: TelemetryContext
     ): Future[state.SubmissionResult] =
-      packagesWrite.uploadPackages(submissionId, dar.all, None).toScala
+      packagesWrite.uploadPackages(submissionId, dar.all, None).asScala
 
     override def entries(offset: Option[LedgerOffset.Absolute]): Source[PackageEntry, _] =
       packagesIndex.packageEntries(offset)

ledger/participant-integration-api/src/main/scala/platform/apiserver/services/admin/ApiParticipantPruningService.scala

@@ -28,7 +28,7 @@ import com.daml.platform.server.api.ValidationLogger
 import com.daml.platform.server.api.validation.ErrorFactories
 import io.grpc.{ServerServiceDefinition, StatusRuntimeException}
 
-import scala.compat.java8.FutureConverters
+import scala.jdk.FutureConverters.CompletionStageOps
 import scala.concurrent.{ExecutionContext, Future}
 
 final class ApiParticipantPruningService private (
@@ -113,8 +113,9 @@ final class ApiParticipantPruningService private (
     logger.info(
       s"About to prune participant ledger up to ${pruneUpTo.toApiString} inclusively starting with the write service"
     )
-    FutureConverters
-      .toScala(writeBackend.prune(pruneUpTo, submissionId, pruneAllDivulgedContracts))
+    writeBackend
+      .prune(pruneUpTo, submissionId, pruneAllDivulgedContracts)
+      .asScala
       .flatMap {
         case NotPruned(status) => Future.failed(status.asRuntimeException())
         case ParticipantPruned =>