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https://issues.apache.org/jira/browse/CXF-9009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17845746#comment-17845746
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Andriy Redko commented on CXF-9009:
-----------------------------------
[~juliojgd] please refer to the FAQ section regarding JAX-WS client proxies
thread safety [1], thank you.
[1] https://cxf.apache.org/faq.html#FAQ-AreJAX-WSclientproxiesthreadsafe?
> Async operations fail in concurrent calls
> -----------------------------------------
>
> Key: CXF-9009
> URL: https://issues.apache.org/jira/browse/CXF-9009
> Project: CXF
> Issue Type: Bug
> Components: JAX-WS Runtime
> Affects Versions: 4.0.4
> Reporter: Julio J. Gomez Diaz
> Priority: Major
> Attachments: spring-soap.zip
>
>
> An exception occurs when a SOAP client is used concurrently in async
> operations, the exception is as follows:
>
>
> {code:java}
> org.apache.cxf.interceptor.Fault: Could not send Message.
> at
> org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:67)
> ~[cxf-core-4.0.4.jar:4.0.4]
> at
> org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307)
> ~[cxf-core-4.0.4.jar:4.0.4]
> at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:530)
> ~[cxf-core-4.0.4.jar:4.0.4]
> at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:434)
> ~[cxf-core-4.0.4.jar:4.0.4]
> at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:412)
> ~[cxf-core-4.0.4.jar:4.0.4]
> at
> org.apache.cxf.jaxws.JaxWsClientProxy.invokeAsync(JaxWsClientProxy.java:326)
> ~[cxf-rt-frontend-jaxws-4.0.4.jar:4.0.4]
> at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:138)
> ~[cxf-rt-frontend-jaxws-4.0.4.jar:4.0.4]
> at jdk.proxy2/jdk.proxy2.$Proxy95.countAsync(Unknown Source) ~[na:na]
> at
> com.example.demo.rest.RestController.lambda$async$1(RestController.java:25)
> ~[classes/:na]
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
> ~[na:na]
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
> ~[na:na]
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
> ~[na:na]
> at java.base/java.lang.Thread.run(Thread.java:1583) ~[na:na]
> Caused by: io.netty.channel.StacklessClosedChannelException: null
> at
> io.netty.channel.AbstractChannel$AbstractUnsafe.ensureOpen(ChannelPromise)(Unknown
> Source) ~[netty-transport-4.1.109.Final.jar:4.1.109.Final]{code}
>
> I created an reproducer application (find attached "spring-soap.zip") that
> acts as client and server, and this publishes the following operations:
> * [http://localhost:8080/async] -> it uses a soap client to call
> concurrently using an async operation (this {*}fails with the exception
> previously described{*})
> * [http://localhost:8080/sync] -> it uses a soap client to call concurrently
> using an ordinary operation (ends without errors)
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