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https://issues.apache.org/jira/browse/DBCP-305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12780022#action_12780022
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Christopher Schultz commented on DBCP-305:
------------------------------------------

Thanks for accepting this patch. I'm sorry I wasn't sensitive to the brace 
convention already in the file. I probably could have javadoc'd the inner 
class, too :)

I didn't think about the lack of thread safety of the SimpleDateFormat class: 
good catch. So this counts as a bugfix by markt (format was being used in an 
unsynchronized way prior to this patch) as well as an enhancement by me :)

If DBCP typically uses localized error messages, I'd be happy to provide 
another patch that localizes the exception's message.

> Use API-specific exception for logging abandoned objects
> --------------------------------------------------------
>
>                 Key: DBCP-305
>                 URL: https://issues.apache.org/jira/browse/DBCP-305
>             Project: Commons Dbcp
>          Issue Type: Improvement
>            Reporter: Christopher Schultz
>            Assignee: Mark Thomas
>            Priority: Trivial
>             Fix For: 1.3
>
>         Attachments: DBCP-305.diff
>
>
> When a DBCP-managed object (Connection, Statement, etc.) is considered 
> "abandoned", a stack trace is emitted to stdout. Unfortunately, the stack 
> trace is for a simple java.lang.Exception (created in AbandonedTrace.init and 
> AbandonedTrace.setStackTrace) with no message.
> When scanning log files for exceptions, say, like this:
> grep "Exception" my_logfile.log, I simply shows:
> java.lang.Exception
> java.lang.Exception
> java.lang.Exception
> ...
> It would be nice to use a more descriptive exception (for instance, 
> AbandonedObjectException) and/or add a descriptive message to the exception 
> upon creation.
> For example, it would be useful to execute the above command and see:
> org.apache.commons.dbcp.AbandonedObjectException: DBCP object created 
> 2009-11-05 10:15:00 by the following code was never closed
> Having the timestamp and a definite identification of the exception (i.e. the 
> class name) on the same line of log output is preferable IMO.
> Implementation should be trivial; I'd be happy to submit a patch. Also, the 
> format of the logging information isn't part of the API itself, so it 
> shouldn't be a big deal to change it.

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