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https://issues.apache.org/jira/browse/DERBY-3607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12605786#action_12605786
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mikem edited comment on DERBY-3607 at 6/17/08 6:45 PM:
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could you remove the db shutdown hook and see if you can reproduce the bug.

Is it possible that the shutdown hook is running in a different class loader 
from the class loader that started the db/connects to the db?  I didn't think 
DERBY-700 applied on windows, but doing the above experiment will 
give some important information.  

It may help to post the code for all of your shutdown hooks.  From before it 
looks like there is 1 for shutting down
the derby SYSTEM, and thus all the dbs.  You describe another that shutdowns 
the clents - is there one or maybe one per db?  Any others that are related to 
derby?

      was (Author: mikem):
    could you remove the db shutdown hook and see if you can reproduce the bug.

Is it possible that the shutdown hook is running in a different class loader 
from the class loader that started the db/connects to the db?  I didn't think 
DERBY-700 applied on windows, but doing the above experiment will 
give some important information.  


  
> Invalid checksum error in Derby 10.3.2.1
> ----------------------------------------
>
>                 Key: DERBY-3607
>                 URL: https://issues.apache.org/jira/browse/DERBY-3607
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.3.2.1, 10.4.1.3
>         Environment: OS-WIN XP SP2, 1.86GHz, 2GB, JVM 1.5, disk caching 
> disabled, Hibernate 3.1.1.RC3,c3p0
>            Reporter: Shahbaz
>            Priority: Critical
>         Attachments: DB_10.4logs.zip, derby.log, derby.log, derby.log, 
> hibernate.cfg.xml, hibernate.cfg.xml, hibernate.cfg.xml, modules.properties, 
> SingleThread Test.zip
>
>
> I am getting this execption when ever I try to restart my application
> java.sql.SQLException: Invalid checksum on Page Page(0,Container(0, 2033)), 
> expected=2,731,401,932, on-disk version=2,375,776,513, page dump follows: Hex 
> dump:
> 00000000: 0076 0000 0001 0000 0000 0000 0002 0000  .v..............
> 00000010: 0000 0006 0000 0000 0000 0000 0000 0000  ................
> 00000020: 0000 0000 0001 0000 0000 0000 0000 0000  ................
> 00000030: 0000 0000 0000 0000 0000 0000 ffff ffff  ................
> 00000040: ffff ffff 0000 0000 0000 0000 0000 0000  ................
> 00000050: 0000 0000 0000 0000 0000 0000 0000 0000  ................
> 00000060: 0000 0000 0000 0000 0000 0000 5000 0000  ............P...
> at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown 
> Source)
>       at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown 
> Source)
>       at 
> org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown 
> Source)
>       at 
> org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown 
> Source)
>       at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown 
> Source)
>       at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown 
> Source)
>       at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown 
> Source)
>       at 
> org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown 
> Source)
>       at 
> org.apache.derby.impl.jdbc.EmbedCallableStatement.executeStatement(Unknown 
> Source)
>       at org.apache.derby.impl.jdbc.EmbedPreparedStatement.execute(Unknown 
> Source)
>       at 
> com.mchange.v2.c3p0.impl.NewProxyCallableStatement.execute(NewProxyCallableStatement.java:3044)
>       at 
> ae.sphere.arena.database.management.backup.BackupStategy.createBackup(BackupStategy.java:56)
>       at 
> ae.sphere.arena.database.management.backup.BackupStategy.doSchedulerJob(BackupStategy.java:41)
>       at 
> ae.sphere.arena.common.jobscheduler.Scheduler$1.run(Scheduler.java:49)
>       at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)
> 00000070: 0000 0000 0000 0000 0000 0000 0000 0000  ................
> 00000080: 0000 0000 0000 0000 0000 0000 0000 0000  ................
> 00000090: 0000 0000 0000 0000 0000 0000 0000 0000  ................
> 000000a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
> 000000b0: 0000 0

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