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https://issues.apache.org/jira/browse/CHAIN-40?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12598487#action_12598487
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Niall Pemberton commented on CHAIN-40:
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Requires moving Commons Chain to a mimimum of JDK 1.4
> ContextBase should use LinkedHashMap
> ------------------------------------
>
> Key: CHAIN-40
> URL: https://issues.apache.org/jira/browse/CHAIN-40
> Project: Commons Chain
> Issue Type: Improvement
> Reporter: Cédric BODIN
> Priority: Minor
>
> org.apache.commons.chain.impl.ContextBase should use java.util.LinkedHashMap
> (instead of java.util.HashMap) : as its superclass, and as the java.util.Map
> implementation for its "descriptors" attribute.
> Indeed LinkedHashMap allow "insertion-order" iteration over the context,
> which is an additional information about the chain execution (to know the
> order of the commands into the chain).
> Moreover LinkedHashMap is a HashMap : so this enhancement is "transparent"
> for users who didn't/don't/won't want to presume about context's iteration
> order.
> Thanks in advance.
> Cédric BODIN
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