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From "Brian Gadwell (JIRA)" <j...@apache.org>
Subject [jira] Created: (DIRSERVER-1089) ConcurrentModificationException problem in org.apache.directory.shared.ldap.message.AttributesImpl
Date Tue, 16 Oct 2007 16:57:50 GMT
ConcurrentModificationException problem in org.apache.directory.shared.ldap.message.AttributesImpl
--------------------------------------------------------------------------------------------------

                 Key: DIRSERVER-1089
                 URL: https://issues.apache.org/jira/browse/DIRSERVER-1089
             Project: Directory ApacheDS
          Issue Type: Bug
          Components: ldap
    Affects Versions: 1.5.1
         Environment: Noticed on various windows OS as well as kubuntu linux and suse linux
64 bit.
JDK 1.5_10
            Reporter: Brian Gadwell


This happens consistently:
java.util.ConcurrentModificationException
        at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
        at java.util.HashMap$KeyIterator.next(HashMap.java:827)
        at org.apache.directory.shared.ldap.message.AttributesImpl.clone(
AttributesImpl.java:499)
        at
org.apache.directory.server.core.partition.impl.btree.IndexRecord.getAttributes
(IndexRecord.java:128)
        at
org.apache.directory.server.core.partition.impl.btree.BTreeSearchResultEnumeration.next
(BTreeSearchResultEnumeration.java:192)
        at
org.apache.directory.server.core.partition.impl.btree.BTreeSearchResultEnumeration.next
(BTreeSearchResultEnumeration.java:52)
        at
org.apache.directory.server.core.enumeration.SearchResultFilteringEnumeration.prefetch
(SearchResultFilteringEnumeration.java:303)
        at
org.apache.directory.server.core.enumeration.SearchResultFilteringEnumeration
.<init>(SearchResultFilteringEnumeration.java:118)
        at org.apache.directory.mitosis.service.ReplicationService.search(
ReplicationService.java:552)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at
org.apache.directory.server.core.interceptor.BaseInterceptor.search(
BaseInterceptor.java:199)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at
org.apache.directory.server.core.interceptor.BaseInterceptor.search(
BaseInterceptor.java:199)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at
org.apache.directory.server.core.collective.CollectiveAttributeService.search
(CollectiveAttributeService.java:320)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at org.apache.directory.server.core.subtree.SubentryService.search(
SubentryService.java:248)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at org.apache.directory.server.core.schema.SchemaService.search(
SchemaService.java:517)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at
org.apache.directory.server.core.operational.OperationalAttributeService.search
(OperationalAttributeService.java:310)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at
org.apache.directory.server.core.exception.ExceptionService.search(
ExceptionService.java:525)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at
org.apache.directory.server.core.authz.DefaultAuthorizationService.search(
DefaultAuthorizationService.java:510)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at
org.apache.directory.server.core.authz.AuthorizationService.search(
AuthorizationService.java:945)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at org.apache.directory.server.core.referral.ReferralService.search(
ReferralService.java:975)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at
org.apache.directory.server.core.authn.AuthenticationService.search(
AuthenticationService.java:458)
        at
org.apache.directory.server.core.interceptor.InterceptorChain$Entry$1.search
(InterceptorChain.java:1268)
        at
org.apache.directory.server.core.normalization.NormalizationService.search(
NormalizationService.java:349)
        at
org.apache.directory.server.core.interceptor.InterceptorChain.search(
InterceptorChain.java:880)
        at
org.apache.directory.server.core.partition.PartitionNexusProxy.search(
PartitionNexusProxy.java:492)
        at
org.apache.directory.server.core.partition.PartitionNexusProxy.search(
PartitionNexusProxy.java:434)
        at
org.apache.directory.server.core.jndi.ServerContext.doSearchOperation(
ServerContext.java:249)
        at org.apache.directory.server.core.jndi.ServerDirContext.search(
ServerDirContext.java:642)
        at
org.apache.directory.server.ldap.support.SearchHandler.messageReceived(
SearchHandler.java:376)
        at org.apache.mina.handler.demux.DemuxingIoHandler.messageReceived(
DemuxingIoHandler.java:141)
        at
org.apache.directory.server.ldap.LdapProtocolProvider$LdapProtocolHandler.messageReceived
(LdapProtocolProvider.java:428)
        at
org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.messageReceived
(AbstractIoFilterChain.java:570)
        at
org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived
(AbstractIoFilterChain.java:299)
        at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(
AbstractIoFilterChain.java:53)
        at
org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived
(AbstractIoFilterChain.java:648)
        at
org.apache.mina.filter.codec.support.SimpleProtocolDecoderOutput.flush(
SimpleProtocolDecoderOutput.java:58)
        at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(
ProtocolCodecFilter.java:176)
        at
org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived
(AbstractIoFilterChain.java:299)
        at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(
AbstractIoFilterChain.java:53)
        at
org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived
(AbstractIoFilterChain.java:648)
        at org.apache.mina.filter.executor.ExecutorFilter.processEvent(
ExecutorFilter.java:220)
        at
org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(
ExecutorFilter.java:264)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(
ThreadPoolExecutor.java:885)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(
ThreadPoolExecutor.java:907)
        at java.lang.Thread.run(Thread.java:619)

AttributesImpl is not thread safe...not sure if it should be. Does not seem like the ReplicationService
is doing anything unexpected.

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