Urs Uetliberger created CXF-9105:
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Summary: 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
Reporter: Urs Uetliberger
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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