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http://issues.apache.org/jira/browse/DERBY-1459?page=comments#action_12420134 ]
Kathey Marsden commented on DERBY-1459:
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Thanks so much Rick for looking this issue and to Olav for bringing it to the
attention of the community.
I just wanted to confirm.
1) Will this resolve DERBY-1399 without changing the test?
2) With this fix, do we expect users upgrading to to 10.2 /jdk 16 see any
impact to their existing applications due to autoloading?
Kathey
> 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
> Type: Bug
> Components: JDBC, Services
> Versions: 10.2.0.0
> Environment: JDK 1.6
> Reporter: Kathey Marsden
> 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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