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From "Nikhil Singh (JIRA)" <j...@apache.org>
Subject [jira] Created: (DBCP-300) remove synchronize access of createDataSource
Date Fri, 11 Sep 2009 01:19:57 GMT
remove synchronize access of createDataSource
---------------------------------------------

                 Key: DBCP-300
                 URL: https://issues.apache.org/jira/browse/DBCP-300
             Project: Commons Dbcp
          Issue Type: Improvement
    Affects Versions: 1.2.2
         Environment: RHEL, jdk1.5.0_12, commons-dbcp 1.2.2
            Reporter: Nikhil Singh


For JDK1.5 onwards we can make the DataSource volatile and start using "double checked locking"
idiom. In my performance testing I have already started seeing wait time on this lock. 


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