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From "Emmanuel Lecharny (JIRA)" <j...@apache.org>
Subject [jira] Closed: (DIRSERVER-658) ClassCast exception when fetching DNs from root DES
Date Sat, 01 Jul 2006 23:50:31 GMT
     [ http://issues.apache.org/jira/browse/DIRSERVER-658?page=all ]
     
Emmanuel Lecharny closed DIRSERVER-658:
---------------------------------------


Fixed

> ClassCast exception when fetching DNs from root DES
> ---------------------------------------------------
>
>          Key: DIRSERVER-658
>          URL: http://issues.apache.org/jira/browse/DIRSERVER-658
>      Project: Directory ApacheDS
>         Type: Bug

>     Versions: 1.0-RC4
>     Reporter: Emmanuel Lecharny
>     Assignee: Emmanuel Lecharny

>
> When fetching for DNs in LdapBrowser, you get an exception while encoding the SearchResultEntry
:
> ...
> Caused by: java.lang.ClassCastException: org.apache.directory.shared.ldap.name.LdapDN
> 	at org.apache.directory.shared.ldap.codec.search.SearchResultEntry.computeLength(SearchResultEntry.java:240)
> 	at org.apache.directory.shared.ldap.codec.LdapMessage.computeLength(LdapMessage.java:530)
> 	at org.apache.directory.shared.ldap.codec.LdapMessage.encode(LdapMessage.java:602)
> 	at org.apache.directory.shared.ldap.codec.TwixEncoder.encodeBlocking(TwixEncoder.java:121)
> 	at org.apache.directory.shared.ldap.codec.TwixEncoder.encode(TwixEncoder.java:200)
> 	at org.apache.directory.shared.ldap.message.MessageEncoder.encode(MessageEncoder.java:131)
> 	at org.apache.mina.filter.codec.asn1.Asn1CodecEncoder.encode(Asn1CodecEncoder.java:55)
> 	at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:226)
> ... 22 more
> The problem is that when encoding a SearchResultEntry, the values are supposed to be
Strings or byte arrays, not LdapDNs. When you fetch for DNs in the root DSE, the result is
stored in the SearchResultEntry as LdapDN objects, not Strings, and it's allowad, as the method
which set the value accept an Object.
> We have to fix two problems :
> - first, check that the Object is either a String or a byte[], nothing else (defensive
programming)
> - second, avoid storing LdapDN objects where String or byte[] are expected :)

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