datadog.trace.instrumentation.akkahttp.DatadogServerRequestResponseFlowWrapper$1-DatadogServerRequestResponseFlowWrapper triggers NPE

[dtremper]

Tracer Version(s)

1.50.0~6db7d82c6e

Java Version(s)

11.0.22+7

JVM Vendor

Eclipse Adoptium / Temurin

Bug Report

after an automatic upgrade of dd-agent from version 1.49.0~5bfab6549b to 1.50.0~6db7d82c6e today, we noticed some NPEs in our logs, probably pointing to this modification: 50ad603#diff-7c7abff2c87ddb4eec6d640142214c8e3e6c0d62addd3444e3d61a7d8d0ed321R171

java.lang.NullPointerException: null
	at datadog.trace.instrumentation.akkahttp.DatadogServerRequestResponseFlowWrapper$1$3.onUpstreamFailure(DatadogServerRequestResponseFlowWrapper.java:171)
	at akka.stream.impl.fusing.GraphInterpreter.processEvent(GraphInterpreter.scala:525)
	at akka.stream.impl.fusing.GraphInterpreter.execute(GraphInterpreter.scala:390)
	at akka.stream.impl.fusing.GraphInterpreterShell.runBatch(ActorGraphInterpreter.scala:650)
	at akka.stream.impl.fusing.GraphInterpreterShell$AsyncInput.execute(ActorGraphInterpreter.scala:521)
	at akka.stream.impl.fusing.GraphInterpreterShell.processEvent(ActorGraphInterpreter.scala:625)
	at akka.stream.impl.fusing.ActorGraphInterpreter.akka$stream$impl$fusing$ActorGraphInterpreter$$processEvent(ActorGraphInterpreter.scala:800)
	at akka.stream.impl.fusing.ActorGraphInterpreter$$anonfun$receive$1.applyOrElse(ActorGraphInterpreter.scala:818)
	at akka.actor.Actor.aroundReceive(Actor.scala:537)
	at akka.actor.Actor.aroundReceive$(Actor.scala:535)
	at akka.stream.impl.fusing.ActorGraphInterpreter.aroundReceive(ActorGraphInterpreter.scala:716)
	at akka.actor.ActorCell.receiveMessage(ActorCell.scala:579)
	at akka.actor.ActorCell.invoke(ActorCell.scala:547)
	at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:270)
	at akka.dispatch.Mailbox.run(Mailbox.scala:231)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)

Expected Behavior

no NPEs

Reproduction Code

No response

[mcculls]

Hi @dtremper apologies - #9019 should address this NPE, we'll look at getting this out as soon as possible

[mcculls]

#9019 has been merged - will keep you posted about the release