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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-4443) Wrap rollback in exception handlers in try-catch
Date Mon, 28 Mar 2011 18:32:05 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13012169#comment-13012169
] 

Knut Anders Hatlen commented on DERBY-4443:
-------------------------------------------

One thing I forgot to mention... The test uses EmbedConnection30, so it won't work on platforms
that don't support at least JDBC 3.0 (for example Java ME with the JSR-169 driver). So the
suite() method will have to check JDBC.vmSupportsJDBC3() and return an empty suite if JDBC
3.0 isn't supported by the JVM.

> Wrap rollback in exception handlers in try-catch
> ------------------------------------------------
>
>                 Key: DERBY-4443
>                 URL: https://issues.apache.org/jira/browse/DERBY-4443
>             Project: Derby
>          Issue Type: Bug
>          Components: Demos/Scripts, Documentation, Eclipse Plug-in, JDBC, Network Client,
Network Server, Replication, Services, SQL, Test, Tools
>    Affects Versions: 10.5.3.0
>            Reporter: Aaron Digulla
>            Assignee: Houx Zhang
>              Labels: derby_triage10_8
>         Attachments: DERBY-4443-1.patch, DERBY-4443-2.patch, DERBY-4443-3.patch, DERBY-4443-4.patch,
DERBY-4443-4.png, DERBY-4443.patch
>
>
> Avoid this pattern everywhere:
> 		}catch(SQLException se){
> 			//issue a rollback on any errors
> 			conn.rollback();
> 			throw  se;
> 		}
> because an error in rollback will shadow the original exception.

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