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Date: Sat, 3 Sep 2011 07:59:10 +0000 (UTC)
From: "Kiran Ayyagari (JIRA)" <jira@apache.org>
To: dev@directory.apache.org
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Subject: [jira] [Commented] (DIRSERVER-1653) using read() of
 ObjectInputStream while deserializing ReplicaEventMessage causes random
 failures
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    [ https://issues.apache.org/jira/browse/DIRSERVER-1653?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13096603#comment-13096603 ] 

Kiran Ayyagari commented on DIRSERVER-1653:
-------------------------------------------

This is a cool catch, this is clearly a bug, but I think the recent changes to JDBM made this exposed (cause this code was just working fine, which means the message size never exceeded 1024 bytes), do you have any hints or pointers about what might triggered this, just curious.

> using read() of ObjectInputStream while deserializing ReplicaEventMessage causes random failures 
> -------------------------------------------------------------------------------------------------
>
>                 Key: DIRSERVER-1653
>                 URL: https://issues.apache.org/jira/browse/DIRSERVER-1653
>             Project: Directory ApacheDS
>          Issue Type: Bug
>          Components: ldap
>            Reporter: Selcuk Aya
>         Attachments: replication1.diff
>
>
> While looking into replication tests, found out that we use read() of ObjectInputStream to read an array of bytes. The specification says this might return any number of bytes(in my case it always returned 1024). When the serialized array is more than 1024 bytes, this causes random failures in deserialization. readFully method should be used to read the expected number of bytes. 

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