[jira] Reopened: (SYNAPSE-572) XSLT Mediator possibility of creating multiple Templates by mutiple threads

["Supun Kamburugamuva (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SYNAPSE-572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Supun Kamburugamuva reopened SYNAPSE-572:
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The patch I've submitted doesn't address the problem with double checked locking with Java.

http://www.ibm.com/developerworks/java/library/j-dcl.html

Also making a variable volatile can be costly than synchronization. So I'm submitting a new patch.

Supun.. 

> XSLT Mediator possibility of creating multiple Templates by mutiple threads
> ---------------------------------------------------------------------------
>
>                 Key: SYNAPSE-572
>                 URL: https://issues.apache.org/jira/browse/SYNAPSE-572
>             Project: Synapse
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Supun Kamburugamuva
>            Assignee: Ruwan Linton
>             Fix For: 1.3, NIGHTLY
>
>         Attachments: synapse-572.patch, synapse-572_1.patch
>
>
> With the current code multiple threads can create the XSLT template after seeing that the cache has expired. Also we are always doing a synchronization for creating the template which can be costly. 

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