[EXPERIMENT] build with pekko 2.0.0 snapshot

build.sbt

@@ -22,6 +22,7 @@ import com.lightbend.paradox.apidoc.ApidocPlugin.autoImport.apidocRootPackage
 sourceDistName := "apache-pekko-http"
 sourceDistIncubating := false
 
+ThisBuild / resolvers += Resolver.ApacheMavenSnapshotsRepo
 ThisBuild / reproducibleBuildsCheckResolver := Resolver.ApacheMavenStagingRepo
 
 addCommandAlias("verifyCodeStyle", "scalafmtCheckAll; scalafmtSbtCheck; +headerCheckAll; javafmtCheckAll")

http-core/src/main/mima-filters/2.0.x.backwards.excludes/uptake-pekko-core-2.0.0.excludes

@@ -0,0 +1,21 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+# changes needed to uptake Pekko Core 2.0.0
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.http.impl.engine.client.PoolInterface#Logic.onDownstreamFinish")
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.http.impl.engine.http2.Http2StreamHandling#IncomingStreamBuffer.onDownstreamFinish")
+ProblemFilters.exclude[DirectMissingMethodProblem]("org.apache.pekko.http.impl.engine.http2.hpack.HandleOrPassOnStage#State.onDownstreamFinish")

http-core/src/main/scala/org/apache/pekko/http/impl/engine/server/HttpServerBluePrint.scala

@@ -721,12 +721,11 @@ private[http] object HttpServerBluePrint {
         })
 
       private var activeTimers = 0
-      private val timeout: FiniteDuration = {
+      private val timeout: FiniteDuration =
         inheritedAttributes.get[ActorAttributes.StreamSubscriptionTimeout] match {
           case Some(attr) => attr.timeout
           case None       => 5.minutes // should not happen
         }
-      }
       private def addTimeout(s: SubscriptionTimeout): Unit = {
         if (activeTimers == 0) setKeepGoing(true)
         activeTimers += 1

http-core/src/main/scala/org/apache/pekko/http/impl/util/StageLoggingWithOverride.scala

@@ -19,8 +19,7 @@ package org.apache.pekko.http.impl.util
 import org.apache.pekko
 import pekko.annotation.InternalApi
 import pekko.stream.stage.GraphStageLogic
-import pekko.event.{ LogSource, LoggingAdapter, NoLogging }
-import pekko.stream.ActorMaterializer
+import pekko.event.{ LogSource, LoggingAdapter }
 
 // TODO Try to reconcile with what Pekko provides in StageLogging.
 // We thought this could be removed when https://github.com/akka/akka/issues/18793 had been implemented
@@ -43,10 +42,7 @@ private[pekko] trait StageLoggingWithOverride extends GraphStageLogic {
         _log =
           logOverride match {
             case DefaultNoLogging =>
-              materializer match {
-                case a: ActorMaterializer => pekko.event.Logging(a.system, logSource)(LogSource.fromClass)
-                case _                    => NoLogging
-              }
+              pekko.event.Logging(materializer.system, logSource)(LogSource.fromClass)
             case x => x
           }
       case _ =>

http/src/main/java/org/apache/pekko/http/javadsl/server/ExceptionHandlerBuilder.java

@@ -13,7 +13,8 @@
 
 package org.apache.pekko.http.javadsl.server;
 
-import org.apache.pekko.japi.pf.FI;
+import org.apache.pekko.japi.function.Function;
+import org.apache.pekko.japi.function.Predicate;
 import org.apache.pekko.japi.pf.PFBuilder;
 
 public class ExceptionHandlerBuilder {
@@ -35,7 +36,7 @@ private ExceptionHandlerBuilder(PFBuilder<Throwable, Route> delegate) {
    * @return a builder with the case statement added
    */
   public <P extends Throwable> ExceptionHandlerBuilder match(
-      final Class<P> type, FI.Apply<P, Route> apply) {
+      final Class<P> type, final Function<P, Route> apply) {
     delegate.match(type, apply);
     return this;
   }
@@ -50,7 +51,7 @@ public <P extends Throwable> ExceptionHandlerBuilder match(
    * @return a builder with the case statement added
    */
   public <P extends Throwable> ExceptionHandlerBuilder match(
-      final Class<P> type, final FI.TypedPredicate<P> predicate, final FI.Apply<P, Route> apply) {
+      final Class<P> type, final Predicate<P> predicate, final Function<P, Route> apply) {
     delegate.match(type, predicate, apply);
     return this;
   }
@@ -63,7 +64,7 @@ public <P extends Throwable> ExceptionHandlerBuilder match(
    * @return a builder with the case statement added
    */
   public <P extends Throwable> ExceptionHandlerBuilder matchEquals(
-      final P object, final FI.Apply<P, Route> apply) {
+      final P object, final Function<P, Route> apply) {
     delegate.matchEquals(object, apply);
     return this;
   }
@@ -74,7 +75,7 @@ public <P extends Throwable> ExceptionHandlerBuilder matchEquals(
    * @param apply an action to apply to the argument
    * @return a builder with the case statement added
    */
-  public ExceptionHandlerBuilder matchAny(final FI.Apply<Throwable, Route> apply) {
+  public ExceptionHandlerBuilder matchAny(final Function<Throwable, Route> apply) {
     delegate.matchAny(apply);
     return this;
   }

http/src/main/mima-filters/2.0.x.backwards.excludes/refactor-javadsl-exception-handler.excludes

@@ -0,0 +1,21 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+# refactor Java DSL ExceptionHandler (due to function changes in Pekko Core 2.0.0)
+ProblemFilters.exclude[IncompatibleMethTypeProblem]("org.apache.pekko.http.javadsl.server.ExceptionHandlerBuilder.match")
+ProblemFilters.exclude[IncompatibleMethTypeProblem]("org.apache.pekko.http.javadsl.server.ExceptionHandlerBuilder.matchEquals")
+ProblemFilters.exclude[IncompatibleMethTypeProblem]("org.apache.pekko.http.javadsl.server.ExceptionHandlerBuilder.matchAny")

http/src/main/resources/reference.conf

@@ -7,6 +7,9 @@
 # This is the reference config file that contains all the default settings.
 # Make your edits/overrides in your application.conf.
 
+# Disable version checks (should not be merged to main branch)
+pekko.fail-mixed-versions=off
+
 pekko.http {
   routing {
     # Enables/disables the returning of more detailed error messages to the

project/PekkoCoreDependency.scala

@@ -20,5 +20,5 @@ import com.github.pjfanning.pekkobuild.PekkoDependency
 object PekkoCoreDependency extends PekkoDependency {
   override val checkProject: String = "pekko-cluster-sharding-typed"
   override val module: Option[String] = None
-  override val currentVersion: String = "1.1.5"
+  override val currentVersion: String = "2.0.0-M0+180-84daa526-SNAPSHOT"
 }