scala - scalaXB Async Dispatcher java.lang.IllegalStateException: failed to create a child event loop -


i using scalaxb make call soap web service. generated code against wsdl using following command

i making call web service in loop. notice code runs fine sometime starts throwing following error

java.lang.illegalstateexception: failed create child event loop         @ io.netty.util.concurrent.multithreadeventexecutorgroup.<init>(multithreadeventexecutorgroup.java:68)         @ io.netty.channel.multithreadeventloopgroup.<init>(multithreadeventloopgroup.java:50)         @ io.netty.channel.nio.nioeventloopgroup.<init>(nioeventloopgroup.java:70)         @ io.netty.channel.nio.nioeventloopgroup.<init>(nioeventloopgroup.java:65)         @ io.netty.channel.nio.nioeventloopgroup.<init>(nioeventloopgroup.java:56)         @ org.asynchttpclient.netty.channel.channelmanager.<init>(channelmanager.java:173)         @ org.asynchttpclient.defaultasynchttpclient.<init>(defaultasynchttpclient.java:85)         @ dispatch.http.client$lzycompute(execution.scala:16)         @ dispatch.http.client(execution.scala:16)         @ dispatch.http.client(execution.scala:11)         @ dispatch.httpexecutor$class.apply(execution.scala:120)         @ dispatch.http.apply(execution.scala:11)         @ dispatch.httpexecutor$class.apply(execution.scala:115)         @ dispatch.http.apply(execution.scala:11)         @ scalaxb.dispatchhttpclientsasync$dispatchhttpclient$class.request(httpclients_dispatch_async.scala:22)         @ scalaxb.dispatchhttpclientsasync$$anon$1.request(httpclients_dispatch_async.scala:7)         @ scalaxb.soapclientsasync$soapclientasync$class.soaprequest(soap12_async.scala:43)         @ scalaxb.soapclientsasync$$anon$1.soaprequest(soap12_async.scala:24)         @ scalaxb.soapclientsasync$soapclientasync$class.requestresponse(soap12_async.scala:63)         @ scalaxb.soapclientsasync$$anon$1.requestresponse(soap12_async.scala:24) caused by: io.netty.channel.channelexception: failed open new selector     @ io.netty.channel.nio.nioeventloop.openselector(nioeventloop.java:176)     @ io.netty.channel.nio.nioeventloop.<init>(nioeventloop.java:150)     @ io.netty.channel.nio.nioeventloopgroup.newchild(nioeventloopgroup.java:103)     @ io.netty.util.concurrent.multithreadeventexecutorgroup.<init>(multithreadeventexecutorgroup.java:64)     ... 34 more caused by: java.io.ioexception: many open files in system         @ sun.nio.ch.kqueuearraywrapper.init(native method)         @ sun.nio.ch.kqueuearraywrapper.<init>(kqueuearraywrapper.java:98)         @ sun.nio.ch.kqueueselectorimpl.<init>(kqueueselectorimpl.java:88)         @ sun.nio.ch.kqueueselectorprovider.openselector(kqueueselectorprovider.java:42)         @ io.netty.channel.nio.nioeventloop.openselector(nioeventloop.java:174)         ... 37 more

i found out answer question. problem was doing new on proxy object inside of loop.

it seems these objects create new connection , don't cleaned resulting in error above.

i moved proxy object out of loop , called webservice inside loop , problem got resolved.


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