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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-700) Derby does not prevent dual boot of database from different classloaders on Linux and Mac OS X
Date Fri, 31 Jul 2009 18:32:14 GMT

     [ https://issues.apache.org/jira/browse/DERBY-700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rick Hillegas updated DERBY-700:
--------------------------------

    Description: 
Derby does not prevent dual boot from two different classloaders on Linux and Mac OS X.


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.




  was:
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.




    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)

also

java version "1.5.0_19"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_19-b02-304)
Java HotSpot(TM) Client VM (build 1.5.0_19-137, mixed mode, sharing)
on Mac OS X 10.5.7.

  was:
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)

        Summary: Derby does not prevent dual boot of database from different classloaders
on Linux and Mac OS X  (was: Derby does not prevent dual boot of database from different classloaders
on Linux)

Amended the title, description, and environment fields. This bug also appears on the Apple
Java 5 VM on Mac OS X 10.5.7. It appears that this bug is not limited to Linux.

> Derby does not prevent dual boot of database from different classloaders on Linux and
Mac OS X
> ----------------------------------------------------------------------------------------------
>
>                 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,
10.3.1.4, 10.4.1.3
>         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)
> also
> java version "1.5.0_19"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_19-b02-304)
> Java HotSpot(TM) Client VM (build 1.5.0_19-137, mixed mode, sharing)
> on Mac OS X 10.5.7.
>            Reporter: 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 and Mac OS
X.
> 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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