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List:       xmlbeans-dev
Subject:    [jira] Resolved: (XMLBEANS-20) JDK 1.3.1 backport: 1.4 Collections classes should be replaced with 1
From:       xmlbeans-dev () xml ! apache ! org
Date:       2004-07-15 21:45:42
Message-ID: 368509639.1089927942214.JavaMail.apache () nagoya
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Message:

   The following issue has been resolved as FIXED.

   Resolver: Kevin Krouse
       Date: Thu, 15 Jul 2004 2:44 PM

We didn't want to introduce another jar and ripping out the desired classes from the \
commons collections proved difficult.  Instead we opted to use some stand alone \
                collection classes.
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View the issue:
  http://issues.apache.org/jira/browse/XMLBEANS-20

Here is an overview of the issue:
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        Key: XMLBEANS-20
    Summary: JDK 1.3.1 backport: 1.4 Collections classes should be replaced with \
1.3-compliant versions  Type: Improvement

     Status: Resolved
   Priority: Major
 Resolution: FIXED

    Project: XMLBeans
   Fix Fors:
             Version 1.0.3 (jdk1.3 port)
   Versions:
             Version 1

   Assignee: 
   Reporter: Matt Bishop

    Created: Mon, 9 Feb 2004 5:46 PM
    Updated: Thu, 15 Jul 2004 2:44 PM

Description:
After looking at various implementations of the 1.4 Collections classes, it looks \
like jakarta commons-collections has the most going for it--same functionality, \
well-tested, compatible license.

The downside is the extra jar--there were too many dependencies to rip out just the \
classes we need, it quickly lost it's value.  The jar itself is 508k.

This is the gist of the changes:

** java.util.IdentityHashMap -> collections.IdentityMap - Same functionality, both \
for keys and values wrt equality testing.  Same perf.

** java.util.LinkedHashMap -> collections.LinkedMap - Same functionality and perf.

** java.util.LinkedHashSet -> collections.ListOrderedSet.decorate(new HashSet) - Same \
functionality and perf.

collections.jar/license.txt live in external/lib and are moved to build/ar/ during \
the build and dist processes.


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