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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-1923) XML operators - Xalan requirement
Date Sun, 31 May 2009 00:20:07 GMT

    [ https://issues.apache.org/jira/browse/DERBY-1923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12714797#action_12714797

Knut Anders Hatlen commented on DERBY-1923:

Sun's JVMs >= 1.5 have a Xalan library used internally which satisfies the minimum version
requirements. However, the package names have been changed so that they don't conflict with
the user's Xalan libraries, and therefore Derby won't find them (DERBY-2739). See incompatibility
#9 in J2SE 5.0: http://java.sun.com/j2se/1.5.0/compatibility.html

AFAIK, Derby doesn't support the XML operators out of the box on any of the Sun JVMs. For
1.4.2, you need to use the Endorsed Standards Override Mechanism as mentioned in the dev guide.
For 1.5.0 and later, wiring the Xalan jars into the classpath should be enough.

> XML operators - Xalan requirement
> ---------------------------------
>                 Key: DERBY-1923
>                 URL: https://issues.apache.org/jira/browse/DERBY-1923
>             Project: Derby
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions:
>            Reporter: Laura Stewart
>            Assignee: Kim Haase
> From Daniel Debrunner:
> The XML operators and data type include text about requiring Xalan etc. When trying out
XML I felt lost at this point because there was no information on what I was meant to do.
It was the feeling I was being told "You need to do something with Xalan to get this to work,
but you are going to have to figure that out yourself". It stopped me from evaluating Mustang
with XML. Can there be information in the developers' guide about this, and a link to that
information from these Usage notes? 

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