[
https://issues.apache.org/jira/browse/CXF-9105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andriy Redko resolved CXF-9105.
-------------------------------
Resolution: Fixed
> ConcurrentModificationException in org.apache.cxf.ext.logging.event when
> iterating over principals
> --------------------------------------------------------------------------------------------------
>
> Key: CXF-9105
> URL: https://issues.apache.org/jira/browse/CXF-9105
> Project: CXF
> Issue Type: Bug
> Affects Versions: 3.6.5
> Reporter: Urs Uetliberger
> Priority: Major
> Fix For: 3.5.11, 3.6.6, 4.0.7, 4.1.1
>
>
> I'm using Apache CXF 3.6.5 and I get
> {{java.util.ConcurrentModificationException}} [1] from
> {{org.apache.cxf.ext.logging.event.DefaultLogEventMapper.getJAASPrincipal}}
> when the library is trying to iterate over the
> {{java.util.Collections.SynchronizedSet<java.security.Principal>}} collection.
> The iterator of {{java.util.Collections.SynchronizedSet}} must be
> synchronized externally as it is mentioned here [2].
>
> [1] {{java.util.ConcurrentModificationException: null }}
> {{at java.base/java.util.LinkedList$ListItr.checkForComodification
> (LinkedList.java:970) }}
> {{at java.base/java.util.LinkedList ListItr.next(LinkedList.java:892) }}
> {{at
> java.base/javax.security.auth.Subject$SecureSet$l.next(Subject.java:1121)}}
> {{at org.apache.cxf.ext.logging.event.DefaultLogEventMapper.getJAASPrincipal
> (DefaultLogEventMapper.java:132)}}
> {{at org.apache.cxf.ext.logging.event.DefaultLogEventMapper.getPrincipal
> (DefaultLogEventMapper.java:112)}}
> {{at org.apache.cxf.ext.logging.event.DefaultLogEventMapper.map
> (DefaultLogEventMapper.java:104)}}
> {{at org.apache.cxf.ext.logging.LoggingOutInterceptor$LoggingCallback.onClose
> (LoggingOut Interceptor.java:201)}}
> {{at org.apache.cxf.io.CachedOutputStream.close(CachedOutputStream.java:219)}}
> {{at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56)}}
> {{at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:688)}}
> {{at org.apache.cxf.interceptor.
> ptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage
> (MessageSenderInterceptor.java:63)}}
> {{at org.apache.cxf.phase.Phase InterceptorChain.doIntercept
> (PhaseInterceptorChain.java:307)}}
> {{at org.apache.cxf.endpoint.Client Impl.doInvoke (ClientImpl.java:530)}}
> {{at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:441)}}
> {{at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:356)}}
> {{at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:314)}}
> {{at org.apache.cxf.frontend.Client Proxy.invokeSync (ClientProxy.java:96)}}
> {{at org.apache.cxf.jaxws.JaxWsClientProxy.invoke
> (JaxWsClientProxy.java:140)}}
> {{at jdk.internal.reflect.GeneratedMethodAccessor616.invoke (Unknown Source)}}
> {{at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
> (DelegatingMethodAccessorImpl.java:43)}}
> {{at java.base/java.lang.reflect.Method.invoke (Method.java:569)
> org.springframework.aop.support.AopUtils.invokeJoinpointUsing Reflection
> (AopUtils.java:344)}}
> {{at
> org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint
> (ReflectiveMethodInvocation.java:198)}}
> {{at org.springframework.aop.framework. ReflectiveMethodInvocation.proceed
> (ReflectiveMethodInvocation.java:163)org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed
> (MethodInvocation ProceedingJoinPoint.java:89)}}
>
> [2]
> [https://docs.oracle.com/javase/8/docs/api/java/util/Collections.html#synchronizedSet-java.util.Set-]
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