I think I've ran into a akka-http bug.
I have a big-ass route:
val route = pathPrefix("users") {
...
}
And wanted to add this new route to it:
val blockingEndpoint = (pathPrefix("users" / "blocked") & authentication)
{issuerId
=>
path(JavaUUID) {blockeeId =>
put {
complete{HttpResponse(NotImplemented)}
} ~
delete {
complete{HttpResponse(NotImplemented)}
}
} ~
get {
complete{HttpResponse(NotImplemented)}
}
}
Now, if I simply do:
val route = pathPrefix("users") {
...
} ~
blockingEndpoint
I will get the following NPE if I send a request towards the routes in
blockingEndpoint:
java.lang.NullPointerException: null
at akka.http.scaladsl.server.
RouteConcatenation$RouteWithConcatenation$$anonfun$$tilde$1$$anonfun$apply$1
.apply(RouteConcatenation.scala:28) ~[akka-http-experimental_2.11-2.0.2.jar:
na]
at akka.http.scaladsl.server.
RouteConcatenation$RouteWithConcatenation$$anonfun$$tilde$1$$anonfun$apply$1
.apply(RouteConcatenation.scala:25) ~[akka-http-experimental_2.11-2.0.2.jar:
na]
at akka.http.scaladsl.util.FastFuture$.
akka$http$scaladsl$util$FastFuture$$strictTransform$1(FastFuture.scala:41)
~[akka-http-core-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.util.FastFuture$.transformWith$extension1(
FastFuture.scala:45) ~[akka-http-core-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.util.FastFuture$.flatMap$extension(FastFuture.
scala:26) ~[akka-http-core-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.
RouteConcatenation$RouteWithConcatenation$$anonfun$$tilde$1.apply(
RouteConcatenation.scala:25) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.
RouteConcatenation$RouteWithConcatenation$$anonfun$$tilde$1.apply(
RouteConcatenation.scala:23) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.directives.
BasicDirectives$$anonfun$mapRouteResultWith$1$$anonfun$apply$4.apply(
BasicDirectives.scala:35) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.directives.
BasicDirectives$$anonfun$mapRouteResultWith$1$$anonfun$apply$4.apply(
BasicDirectives.scala:35) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.directives.
BasicDirectives$$anonfun$textract$1$$anonfun$apply$5.apply(BasicDirectives.
scala:88) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.directives.
BasicDirectives$$anonfun$textract$1$$anonfun$apply$5.apply(BasicDirectives.
scala:88) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.directives.
ExecutionDirectives$$anonfun$handleExceptions$1$$anonfun$apply$1.apply(
ExecutionDirectives.scala:27) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.directives.
ExecutionDirectives$$anonfun$handleExceptions$1$$anonfun$apply$1.apply(
ExecutionDirectives.scala:23) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.Route$$anonfun$asyncHandler$1.apply(
Route.scala:64) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.http.scaladsl.server.Route$$anonfun$asyncHandler$1.apply(
Route.scala:63) ~[akka-http-experimental_2.11-2.0.2.jar:na]
at akka.stream.impl.fusing.MapAsync$$anon$9$$anon$10.onPush(Ops.
scala:590) ~[akka-stream-experimental_2.11-2.0.2.jar:na]
at akka.stream.impl.fusing.GraphInterpreter.processElement$1(
GraphInterpreter.scala:575) ~[akka-stream-experimental_2.11-2.0.2.jar:na]
at akka.stream.impl.fusing.GraphInterpreter.processEvent(
GraphInterpreter.scala:586) ~[akka-stream-experimental_2.11-2.0.2.jar:na]
at akka.stream.impl.fusing.GraphInterpreter.execute(GraphInterpreter
.scala:533) ~[akka-stream-experimental_2.11-2.0.2.jar:na]
at akka.stream.impl.fusing.GraphInterpreterShell.runBatch(
ActorGraphInterpreter.scala:445) ~[akka-stream-experimental_2.11-2.0.2.jar:
na]
at akka.stream.impl.fusing.GraphInterpreterShell.receive(
ActorGraphInterpreter.scala:400) ~[akka-stream-experimental_2.11-2.0.2.jar:
na]
at akka.stream.impl.fusing.ActorGraphInterpreter$$anonfun$receive$1.
applyOrElse(ActorGraphInterpreter.scala:549) ~[akka-stream-experimental_2.11
-2.0.2.jar:na]
at akka.actor.Actor$class.aroundReceive(Actor.scala:480) ~[akka-
actor_2.11-2.4.1.jar:na]
at akka.stream.impl.fusing.ActorGraphInterpreter.aroundReceive(
ActorGraphInterpreter.scala:495) ~[akka-stream-experimental_2.11-2.0.2.jar:
na]
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:526) [akka-
actor_2.11-2.4.1.jar:na]
at akka.actor.ActorCell.invoke(ActorCell.scala:495) [akka-actor_2.11
-2.4.1.jar:na]
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257) [akka-
actor_2.11-2.4.1.jar:na]
at akka.dispatch.Mailbox.run(Mailbox.scala:224) [akka-actor_2.11-2.4
.1.jar:na]
at akka.dispatch.Mailbox.exec(Mailbox.scala:234) [akka-actor_2.11-
2.4.1.jar:na]
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:
260) [scala-library-2.11.7.jar:na]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(
ForkJoinPool.java:1339) [scala-library-2.11.7.jar:na]
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.
java:1979) [scala-library-2.11.7.jar:na]
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(
ForkJoinWorkerThread.java:107) [scala-library-2.11.7.jar:na]
On the other hand, adding the new routes directly to routes (i.e. without
defining blockingEndpoint) works fine:
val route = pathPrefix("users") {
...
} ~
(pathPrefix("users" / "blocked") & authentication) {issuerId =>
path(JavaUUID) {blockeeId =>
put {
complete{HttpResponse(NotImplemented)}
} ~
delete {
complete{HttpResponse(NotImplemented)}
}
} ~
get {
complete{HttpResponse(NotImplemented)}
}
}
My akka version: "2.4.1"
My akka streams and http version = "2.0.2"
Thanks.
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