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Date: Thu, 29 Mar 2012 17:36:27 +0000 (UTC)
From: "Jonathan Ellis (Issue Comment Edited) (JIRA)" <jira@apache.org>
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Subject: [jira] [Issue Comment Edited] (CASSANDRA-4097) Classes in
 org.apache.cassandra.deps:avro:1.4.0-cassandra-1 clash with core Avro
 classes
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    [ https://issues.apache.org/jira/browse/CASSANDRA-4097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13241412#comment-13241412 ] 

Jonathan Ellis edited comment on CASSANDRA-4097 at 3/29/12 5:35 PM:
--------------------------------------------------------------------

{{ls lib/*avro*}}
                
      was (Author: jbellis):
    ls lib/*avro*
                  
> Classes in org.apache.cassandra.deps:avro:1.4.0-cassandra-1 clash with core Avro classes
> ----------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-4097
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4097
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.7.0
>            Reporter: Andrew Swan
>            Priority: Minor
>
> Cassandra has this dependency:
> {code:title=build.xml}...
> <dependency groupId="org.apache.cassandra.deps" artifactId="avro" version="1.4.0-cassandra-1">
> ...{code}
> Unfortunately this JAR file contains classes in the {{org.apache.avro}} package that are incompatible with classes of the same fully-qualified name in the current release of Avro. For example, the inner class {{org.apache.avro.Schema$Parser}} found in Avro 1.6.1 is missing from the Cassandra version of that class. This makes it impossible to have both Cassandra and the latest Avro version on the classpath (my use case is an application that embeds Cassandra but also uses Avro 1.6.1 for unrelated serialization purposes). A simple and risk-free solution would be to change the package declaration of Cassandra's Avro classes from {{org.apache.avro}} to (say) {{org.apache.cassandra.avro}}, assuming that the above dependency is only used by Cassandra and no other projects (which seems a reasonable assumption given its name).

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