[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6575) Failure to detect dialect because of a failure to obtain connection (HHH00342) should show connection failure exception

[Mike Youngstrom (JIRA)]

Failure to detect dialect because of a failure to obtain connection (HHH00342) should show connection failure exception
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                 Key: HHH-6575
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6575
             Project: Hibernate Core
          Issue Type: Improvement
          Components: core
    Affects Versions: 4.0.0.Beta5
            Reporter: Mike Youngstrom


I recently upgraded to Hibernate 4 Beta 5 and found it much harder to debug connection errors.  My application depends upon Dialect detection and when my app cannot connect to the database I get the following warning with no stacktrace:

JdbcServicesImpl: HHH00342:Could not obtain connection to query metadata : Exception occurred while getting connection: oracle.ucp.UniversalConnectionPoolException: Cannot get Connection from Datasource

I then get a null dialect error because obviously the dialect couldn't be detected and I have no idea of it is a bad password or anything.

I think the Warning above should also display the connection error stack trace like it used to in 3.x.  Or at the very least an additional "DEBUG" level message should be logged with the full connection error stacktrace.

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