db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-4480) "No suitable driver found" when attempting to connect while other thread is auto-loading the driver
Date Wed, 24 Oct 2012 16:12:12 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13483349#comment-13483349

Knut Anders Hatlen commented on DERBY-4480:

I ran with jars, since auto-loading does not work when running from classes. I only had derby.jar
in the classpath.

I'm not sure if it's a JVM bug or if it's a problem in Derby's engine boot code that gets
triggered by the way that version of the JVM invokes it. I'll try to pinpoint exactly what
is causing it and what has changed. Should probably also add a regression test case too before
closing the issue.
> "No suitable driver found" when attempting to connect while other thread is auto-loading
the driver
> ---------------------------------------------------------------------------------------------------
>                 Key: DERBY-4480
>                 URL: https://issues.apache.org/jira/browse/DERBY-4480
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions:,,,,,,,,,,
>         Environment: OpenSolaris snv_129, X86
> Java(TM) SE Runtime Environment (build 1.6.0_17-b04)
> Java(TM) SE Runtime Environment (build 1.7.0-ea-b76)
>            Reporter: Knut Anders Hatlen
>              Labels: derby_triage10_8
>         Attachments: AutoloadTest.java
> If you try to connect to embedded Derby from two threads simultaneously, and the embedded
driver has not been loaded yet, one of the threads will trigger auto-loading of the driver
and connect successfully, whereas the other thread will fail with this message: java.sql.SQLException:
No suitable driver found for jdbc:derby:db;create=true
> This problem has been present since JDBC 4 auto-loading was implemented (

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

View raw message