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From "Maarten Brak (JIRA)" <j...@apache.org>
Subject [jira] Created: (COLLECTIONS-323) Behavior of constructors CaseInsensitiveMap inconsistent with standard Java HashMap
Date Wed, 22 Apr 2009 08:44:47 GMT
Behavior of constructors CaseInsensitiveMap inconsistent with standard Java HashMap
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                 Key: COLLECTIONS-323
                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-323
             Project: Commons Collections
          Issue Type: Bug
          Components: Map
    Affects Versions: 3.2
         Environment: Any
            Reporter: Maarten Brak
            Priority: Minor


The constructor CaseInsensitiveMap(int initialCapacity) throws an IllegalArgumentException
if "the initial capacity is less than one". This is inconsistent with the standard Java HashMap
constructor HashMap(int initialCapacity), which throws an if IllegalArgumentException if "the
initial capacity is negative".

Thus:
new HashMap(0) ==> no exception
new CaseInsensitiveMap(0) ==> IllegalArgumentException.

This inconsistency is confusing.


Actions:
- Change Javadoc (this shouldn't be a problem in practice since surely there is no code around
depending on the fact that the constructor throws an IllegalArgumentException :-))
- Change code.

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