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From "Rick Hillegas (JIRA)" <derby-...@db.apache.org>
Subject [jira] Closed: (DERBY-1459) Early load of Derby driver with JDBC 4.0 autoloading can lead to derby properties not being processed or derby boot time actions consuming resources when a connection is made with another driver
Date Fri, 21 Jul 2006 19:15:14 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1459?page=all ]

Rick Hillegas closed DERBY-1459.
--------------------------------

    Resolution: Fixed

> Early load of Derby driver with JDBC 4.0 autoloading can lead to derby properties not
being processed or derby boot time actions consuming resources when a connection is made with
another driver
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-1459
>                 URL: http://issues.apache.org/jira/browse/DERBY-1459
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC, Services
>    Affects Versions: 10.2.0.0
>         Environment: JDK 1.6 
>            Reporter: Kathey Marsden
>         Assigned To: Rick Hillegas
>            Priority: Critical
>             Fix For: 10.2.0.0
>
>         Attachments: autoloading_scenarios.html, bug1459_v01.diff, bug1459_v02.diff,
bug1459_v03.diff, bug1459_v04.diff
>
>
> The addition of support for autoloading of Derby drivers, DERBY-930, caused two potentially
serious regresions for applications.
> 1) Early load of driver can mean that  derby system properties, such as derby.system.home
may not be processed by the driver because they are set after the driver is loaded.
> 2) Early load of the driver can mean boot time operations, such as starting network server
with derby.drda.startNetworkServer can happen even when Derby is never used if a connection
is made to another database such as Oracle.
> The attached file autoloading_scenarios.html  shows scenarios that show these regressions
plus another case that will regress if boot time operations are moved to the first Derby embedded
connection.   I don't know what solution is available that would handle all three cases.

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