[jira] [Commented] (CXF-8082) [Apache cxf 3.1.4] ConcurrentModificationException

["Freeman Fang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CXF-8082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16899094#comment-16899094 ] 

Freeman Fang commented on CXF-8082:
-----------------------------------

Hi [~Samadou],

As I pointed the doc here
https://cxf.apache.org/faq.html#FAQ-AreJAX-WSclientproxiesthreadsafe?

The cxf proxy isn't threadsafe for many cases, like
{code}
request context is PER INSTANCE. Thus, anything set there will affect requests on other threads
{code}
including the
Message.PROTOCOL_HEADERS
you set there.

So I believe 
{code}
((BindingProvider)proxy).getRequestContext().put("thread.local.request.context", "true");
{code}
which can make request context threadsafe could address this issue.

Freeman

> [Apache cxf 3.1.4] ConcurrentModificationException
> --------------------------------------------------
>
>                 Key: CXF-8082
>                 URL: https://issues.apache.org/jira/browse/CXF-8082
>             Project: CXF
>          Issue Type: Bug
>          Components: Bus
>    Affects Versions: 3.1.4
>            Reporter: SARE Samadou
>            Priority: Blocker
>
> Scenario: we have an exception with the following stack trace in one a batch processing using spring batch. This batch use 4 concurrents thread , each of them make processiing  in separate partition
> Caused by: java.util.ConcurrentModificationException: null
>     at java.util.HashMap$HashIterator.nextNode(HashMap.java:1442)
>     at java.util.HashMap$EntryIterator.next(HashMap.java:1476)
>     at java.util.HashMap$EntryIterator.next(HashMap.java:1474)
>     at java.util.AbstractMap.putAll(AbstractMap.java:280)
>     at java.util.TreeMap.putAll(TreeMap.java:327)
>     at org.apache.cxf.transport.http.Headers.getSetProtocolHeaders(Headers.java:249)
>     at org.apache.cxf.transport.http.Headers.<init>(Headers.java:90)
>     at org.apache.cxf.transport.http.HTTPConduit.setHeadersByAuthorizationPolicy(HTTPConduit.java:787)
>     at org.apache.cxf.transport.http.HTTPConduit.prepare(HTTPConduit.java:556)
>     at org.apache.cxf.interceptor.MessageSenderInterceptor.handleMessage(MessageSenderInterceptor.java:46)
>     at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
>     at org.apache.cxf.endpoint.ClientImpl.doInvoke(ClientImpl.java:514)
>     at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:423)
>     at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:324)
>     at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:277)
>     at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:96)
>     at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:139)



--
This message was sent by Atlassian JIRA
(v7.6.14#76016)