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From "Markus Wiederkehr (JIRA)" <server-...@james.apache.org>
Subject [jira] Updated: (MIME4J-89) Improve thread synchronization in MultiReferenceStorage
Date Mon, 01 Dec 2008 18:03:44 GMT

     [ https://issues.apache.org/jira/browse/MIME4J-89?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Markus Wiederkehr updated MIME4J-89:

    Attachment: mime4j-storage-lock.patch

This patch should resolve both problems.

In addition it adds an IllegalStateException to delete in case the MultiReferenceStorage has
already been deleted. This can only happen if a client invokes delete more than once which
is prohibited by the contract.

> Improve thread synchronization in MultiReferenceStorage
> -------------------------------------------------------
>                 Key: MIME4J-89
>                 URL: https://issues.apache.org/jira/browse/MIME4J-89
>             Project: JAMES Mime4j
>          Issue Type: Improvement
>    Affects Versions: 0.6
>            Reporter: Markus Wiederkehr
>             Fix For: 0.6
>         Attachments: mime4j-storage-lock.patch
> MultiReferenceStorage uses method based synchronization to protect the reference counting
> There are two problems with that:
> 1. storage is an interface and so storage.delete() represents a leak of the thread of
> 2. storage.delete() may be a slow operation.

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