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http://issues.apache.org/bugzilla/show_bug.cgi?id=42840 Summary: AbstractReplicatedMap.ping(timeout) throws ConcurrentModificationException Product: Tomcat 6 Version: unspecified Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: Catalina AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] I noticed the following codes. org.apache.catalina.tribes.tipis.AbstractReplicatedMap.ping(long timeout) is as follows. protected void ping(long timeout) throws ChannelException { .... omits //update our map of members, expire some if we didn't receive a ping back synchronized (mapMembers) { Iterator it = mapMembers.entrySet().iterator(); long now = System.currentTimeMillis(); while ( it.hasNext() ) { Map.Entry entry = (Map.Entry)it.next(); long access = ((Long)entry.getValue()).longValue(); if ( (now - access) > timeout ) memberDisappeared((Member) entry.getKey()); } }//synch } (now - access) If > timeout is ture, memberDisappeared((Member)entry.getKey()) is executed. And org.apache.catalina.tribes.tipis.AbstractReplicatedMap.memberDisappeared (Member member) is as follows. public void memberDisappeared(Member member) { boolean removed = false; synchronized (mapMembers) { removed = (mapMembers.remove(member) != null ); } .... omits } member(argument) is removeed from mapMembers(instance of HashMap). As a result, when The 258th line Map.Entry entry=(Map.Entry) it.next() is executed again, java.util.ConcurrentModificationException is thrown. -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
