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From "Sebb (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SANDBOX-408) CSVFormat describes itself as immutable, but it is not - in particular it is not thread-safe
Date Thu, 08 Mar 2012 00:40:57 GMT

     [ https://issues.apache.org/jira/browse/SANDBOX-408?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sebb updated SANDBOX-408:
-------------------------

    Comment: was deleted

(was: Another simplification; no need to check for null element.)
    
> CSVFormat describes itself as immutable, but it is not - in particular it is not thread-safe
> --------------------------------------------------------------------------------------------
>
>                 Key: SANDBOX-408
>                 URL: https://issues.apache.org/jira/browse/SANDBOX-408
>             Project: Commons Sandbox
>          Issue Type: Bug
>          Components: CSV
>            Reporter: Sebb
>         Attachments: CSVFormat.java
>
>
> CSVFormat describes itself as immutable, but it is not @Immutable - the class fields
are all mutable.
> The methods that change the fields do so by creating a clone, and returning the changed
clone.
> So in a sense the class is immutable.
> However, the normal expectation is that @Immutable classes are @ThreadSafe.
> CSVFormat is not thread-safe, because the fields are not volatile, and the fields are
not written & read using a common lock.
> The comment needs to be clarified or removed.

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