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Date: Fri, 6 Jul 2007 18:34:04 -0700 (PDT)
From: "Daniel John Debrunner (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Updated: (DERBY-700) Derby does not prevent dual boot of
 database from different classloaders on Linux
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     [ https://issues.apache.org/jira/browse/DERBY-700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel John Debrunner updated DERBY-700:
----------------------------------------

           Derby Info: [Existing Application Impact, Release Note Needed]  (was: [Release Note Needed, Existing Application Impact])
    Affects Version/s: 10.4.0.0
                       10.3.1.1
                       10.3.1.0
                       10.3.0.0
                       10.0.2.0
                       10.0.2.1
                       10.1.1.0
                       10.1.3.1
                       10.2.1.6
                       10.2.2.0

This is an issue for every release/branch so far

> Derby does not prevent dual boot of database from different classloaders on Linux
> ---------------------------------------------------------------------------------
>
>                 Key: DERBY-700
>                 URL: https://issues.apache.org/jira/browse/DERBY-700
>             Project: Derby
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 10.0.2.0, 10.0.2.1, 10.1.1.0, 10.1.2.1, 10.1.3.1, 10.2.1.6, 10.2.2.0, 10.3.0.0, 10.3.1.0, 10.3.1.1, 10.4.0.0
>         Environment: ava -version
> java version "1.4.2_08"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_08-b03)
> Java HotSpot(TM) Client VM (build 1.4.2_08-b03, mixed mode)
>            Reporter: Kathey Marsden
>            Assignee: Kathey Marsden
>            Priority: Critical
>         Attachments: DERBY-700.diff, DERBY-700.stat, derby-700_06_07_07_diff.txt, derby-700_06_07_07_stat.txt, derby-700_06_19_2007, derby-700_diff.txt, derby-700_stat.txt, DERBY-700_v1_use_to_run_DualBootrepro_multithreaded.diff, DERBY-700_v1_use_to_run_DualBootrepro_multithreaded.stat, derby-700_with_NPE_fix_diff.txt, derby-700_with_NPE_fix_stat.txt, derby.log, derby700_singleproperty_v1.diff, derby700_singleproperty_v1.stat, DualBootRepro.java, DualBootRepro2.zip, DualBootRepro_mutltithreaded.tar.bz2, releaseNote.html, releaseNote.html
>
>
> Derby does not prevent dual boot from two different classloaders on Linux.
> To reproduce run the  program DualBootRepro with no derby jars in your classpath. The program assumes derby.jar is in 10.1.2.1/derby.jar, you can change the location by changing the DERBY_LIB_DIR variable.
> On Linux the output is:
> $java -cp . DualBootRepro
> Loading derby from file:10.1.2.1/derby.jar
> 10.1.2.1/derby.jar
> Booted database in loader java.net.URLClassLoader@8ed465
> FAIL: Booted database in 2nd loader java.net.URLClassLoader@dc6a77
> On Windows I get the expected output.
> $ java -cp . DualBootRepro
> Loading derby from file:10.1.2.1/derby.jar
> 10.1.2.1/derby.jar
> Booted database in loader java.net.URLClassLoader@1ac04e8
> PASS: Expected exception for dualboot:Another instance of Derby may have already booted the database D:\marsden\repro\dualboot\mydb.

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