I was able to compile my Scheduler project implemented using AKKA Actor framework. But when I run the project below is the error which I get while starting Netty server:
[info] Set current project to play-java (in build file:/C:/Play_Sample_R&D_Proje
cts/play-java-starter-example-2.5.x/)
--- (Running the application, auto-reloading is enabled) ---
java.lang.NullPointerException
at io.netty.channel.group.DefaultChannelGroup.add(DefaultChannelGroup.ja
va:146)
at play.core.server.NettyServer.bind(NettyServer.scala:140)
at play.core.server.NettyServer.play$core$server$NettyServer$$bindChanne
l(NettyServer.scala:224)
at play.core.server.NettyServer$$anonfun$1.apply(NettyServer.scala:216)
at play.core.server.NettyServer$$anonfun$1.apply(NettyServer.scala:216)
at scala.Option.map(Option.scala:146)
at play.core.server.NettyServer.<init>(NettyServer.scala:216)
at play.core.server.NettyServerProvider.createServer(NettyServer.scala:2
79)
at play.core.server.NettyServerProvider.createServer(NettyServer.scala:2
78)
at play.core.server.DevServerStart$$anonfun$mainDev$1.apply(DevServerSta
rt.scala:235)
at play.core.server.DevServerStart$$anonfun$mainDev$1.apply(DevServerSta
rt.scala:65)
at play.utils.Threads$.withContextClassLoader(Threads.scala:21)
at play.core.server.DevServerStart$.mainDev(DevServerStart.scala:64)
at play.core.server.DevServerStart$.mainDevHttpMode(DevServerStart.scala
:54)
at play.core.server.DevServerStart.mainDevHttpMode(DevServerStart.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at play.runsupport.Reloader$.startDevMode(Reloader.scala:234)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun
$apply$3.devModeServer$lzycompute$1(PlayRun.scala:74)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun
$apply$3.play$sbt$run$PlayRun$$anonfun$$anonfun$$anonfun$$devModeServer$1(PlayRu
n.scala:74)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun
$apply$3.apply(PlayRun.scala:100)
at play.sbt.run.PlayRun$$anonfun$playRunTask$1$$anonfun$apply$2$$anonfun
$apply$3.apply(PlayRun.scala:53)
at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
[trace] Stack trace suppressed: run last compile:run for the full output.
[error] (compile:run) java.lang.reflect.InvocationTargetException
[error] Total time: 4 s, completed Apr 23, 2018 4:58:31 PM