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https://issues.apache.org/jira/browse/CASSANDRA-37?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12706290#action_12706290
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Ian Holsman commented on CASSANDRA-37:
--------------------------------------

Hey JB.

lucene/solr have a 'OpenBitSet' class in their code. would this be suitable as 
a replacement for BitSet ?

http://lucene.apache.org/java/2_4_0/api/org/apache/lucene/util/OpenBitSet.html


> Remove JDK-derived code from project
> ------------------------------------
>
>                 Key: CASSANDRA-37
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-37
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>            Priority: Critical
>             Fix For: 0.3
>
>         Attachments: 
> 0001-add-SSTable-tests.-in-particular-we-want-to-be-sure.patch, 
> 0002-r-m-copied-JDK-code.patch, 37.tgz
>
>
> Some classes appear to have been copied from the JDK source and altered to 
> improve them for use in Cassandra.  Unfortunately neither the classic JDK nor 
> the OpenJDK license is compatible with the Apache license that Cassandra is 
> operating under.  See https://issues.apache.org/jira/browse/LEGAL-46
> Modified JDK classes include:
>  - BitSet [JDK: BitSet]
>  - FastByteArrayInputStream [ByteArrayInputStream]
>  - FastByteArrayOutputStream [ByteArrayOutputStream]

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