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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-5316) Unload old JDBC drivers when done with them in the upgrade tests
Date Wed, 06 Jul 2011 18:52:16 GMT
Unload old JDBC drivers when done with them in the upgrade tests
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                 Key: DERBY-5316
                 URL: https://issues.apache.org/jira/browse/DERBY-5316
             Project: Derby
          Issue Type: Improvement
          Components: Test
            Reporter: Knut Anders Hatlen


Discussed in this thread on derby-dev: http://mail-archives.apache.org/mod_mbox/db-derby-dev/201107.mbox/%3C4E146309.3000906@gmail.com%3E

After we're done testing an old version in the upgrade tests, its classes are still loaded
in the JVM because the old driver is referenced in DriverManager. We should find a way to
unload the old drivers so that the memory usage of the upgrade tests is reduced. Now we typically
need to run with -XX:MaxPermSize=200M or similar options to work around this issue.

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