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From "Vladimir Konkov (JIRA)" <>
Subject [jira] [Updated] (DBCP-428) Unsuccessful Connection enlistment in XA Transaction ignored by TransactionContext
Date Mon, 06 Oct 2014 08:28:34 GMT


Vladimir Konkov updated DBCP-428:
    Attachment: DBCP-428.diff

I've attached simple patch for this issue. Unfortunately, with current test infrastructure
provide test case is very time demand. Currently code path with connection enlistment is tested
only by optimistic path. I will try create separate test suite for test XA interation.

> Unsuccessful Connection enlistment in XA Transaction ignored by TransactionContext
> ----------------------------------------------------------------------------------
>                 Key: DBCP-428
>                 URL:
>             Project: Commons Dbcp
>          Issue Type: Bug
>    Affects Versions: 1.4, 2.0.1
>         Environment: All
>            Reporter: Vladimir Konkov
>            Priority: Critical
>         Attachments: DBCP-428.diff
> When TransactionContext call 'enlistResource()' on Transaction it is ignored returned
result. This hapens at least when XAResource throws XAException in enlistResource method.
By contract XAException should not be propagated by 'enlistResource()' , instead 'false' is
> As result:
> 1. ManagedConnection returned by pool is not enlisted in transaction (application think
it does)
> 2. Transaction itself marked for rollback (because of XaException).
> 3. ManagedConnection returned by pool used by application without any errors until commit
on transaction is called. Changes made in not enlisted connection may be commited on other
use of native connection or rolled back depending on pool config.
> Issue is very dangerous especialy if changed made by application will be commited later
but XA transaction in witch it made has bin rolled back.
> We are hit by this bug in production using MS SQL Server and PostgreSQL JDBC drivers.

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