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<title>RELEASE NOTES: COLLECTIONS 2.1.1</title>
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<center><h2>RELEASE NOTES: COLLECTIONS 2.1.1</h2></center>
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<b>This is a patch release of Commons Collections 2.1</b>
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The latest version of Commons Collections is 3.0.
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Unfortunately, the release of version 3.0 introduced a binary incompatibility
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with 2.1 in the <code>IteratorUtils</code> class. We apologise for this error.
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Regrettably, despite the issue being discovered by other teams, no feedback was
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given to the Commons Collections team, preventing a simple solution.
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<i>Please provide feedback to Commons Collections when you find issues like this!</i>
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This patch to Commons Collections is designed to allow version 2.1.1 to co-exist
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with version 3.1. The patch contains the following changes:
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<li>Deprecated <code>IteratorUtils.arrayIterator(...)</code> -
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use <code>new ArrayIterator(...)</code> instead</li>
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<li>Deprecated <code>IteratorUtils.singletonIterator(...)</code> -
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use <code>new SingletonIterator(...)</code> instead</li>
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<li>Deprecated <code>IteratorUtils.emptyIterator()</code> -
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use <code>EmptyIterator.INSTANCE</code> instead</li>
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<li>Deprecated <code>IteratorUtils.emptyListIterator()</code> -
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use <code>EmptyListIterator.INSTANCE</code> instead</li>
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<li>Deprecated <code>IteratorUtils.EMPTY_ITERATOR</code> -
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use <code>EmptyIterator.INSTANCE</code> instead</li>
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<li>Deprecated <code>IteratorUtils.EMPTY_LIST_ITERATOR</code> -
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use <code>EmptyIterator.INSTANCE</code> instead</li>
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<li>Added <code>EmptyIterator</code></li>
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<li>Added <code>EmptyListIterator</code></li>
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<li>Renamed enum variables to enumeration to enable compilation on JDK1.5</li>
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<li>Switched to Apache License 2.0</li>
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To make your code compatible with both 2.1.1 and 3.1 and later, remove all
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deprecation warnings from your code and re-release.
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If you have no deprecation warnings after installing this jar, your code is
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already compatible, and will run with versions 2.1, 2.1.1, 3.0 and later.
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RELEASE-NOTES-2.1.1.html
