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From Jörg Waßmer (Commented) (JIRA) <j...@apache.org>
Subject [jira] [Commented] (AMQ-3627) IndexOutOfBoundsException in org.apache.activemq.store.kahadb.MessageDatabase.getFirstInProgressTxLocation()
Date Thu, 08 Dec 2011 13:04:40 GMT

    [ https://issues.apache.org/jira/browse/AMQ-3627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13165202#comment-13165202
] 

Jörg Waßmer commented on AMQ-3627:
----------------------------------

Happens in line "inflightTransactions.values().iterator().next().get(0)".

{noformat}
    public Location getFirstInProgressTxLocation() {
        Location l = null;
        synchronized (inflightTransactions) {
            if (!inflightTransactions.isEmpty()) {
                l = inflightTransactions.values().iterator().next().get(0).getLocation();
            }
            if (!preparedTransactions.isEmpty()) {
                Location t = preparedTransactions.values().iterator().next().get(0).getLocation();
                if (l==null || t.compareTo(l) <= 0) {
                    l = t;
                }
            }
        }
        return l;
    }
{noformat}
                
> IndexOutOfBoundsException in org.apache.activemq.store.kahadb.MessageDatabase.getFirstInProgressTxLocation()
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-3627
>                 URL: https://issues.apache.org/jira/browse/AMQ-3627
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Message Store
>    Affects Versions: 5.5.1
>         Environment: ActiveMQ 5.5.1
>            Reporter: Jörg Waßmer
>            Priority: Critical
>
> Following error is happening once a day. The messages in the affected queue are hanging
until restart.
> {noformat}
> java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
>         at java.util.ArrayList.rangeCheck(ArrayList.java:604)
>         at java.util.ArrayList.get(ArrayList.java:382)
>         at java.util.Collections$SynchronizedList.get(Collections.java:1873)
>         at org.apache.activemq.store.kahadb.MessageDatabase.getFirstInProgressTxLocation(MessageDatabase.java:430)
>         at org.apache.activemq.store.kahadb.MessageDatabase.checkpointUpdate(MessageDatabase.java:1168)
>         at org.apache.activemq.store.kahadb.MessageDatabase$10.execute(MessageDatabase.java:730)
>         at org.apache.kahadb.page.Transaction.execute(Transaction.java:728)
>         at org.apache.activemq.store.kahadb.MessageDatabase.checkpointCleanup(MessageDatabase.java:728)
>         at org.apache.activemq.store.kahadb.MessageDatabase$3.run(MessageDatabase.java:303)
> KahaDB: Recovering checkpoint thread after death
> {noformat}

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