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From "Shreyas Kaushik (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-95) NPE when passing in url instead of database name to EmbeddedXADataSource
Date Fri, 07 Jan 2005 06:26:13 GMT
     [ http://issues.apache.org/jira/browse/DERBY-95?page=comments#action_57371 ]
Shreyas Kaushik commented on DERBY-95:

The EmbeddedXADataSource.getConnection() does not return null, the call to this methods throws
a NPE because the EmbeddedDriver.getConnection() returns null and an attempt is made to close
the connection assuming that it will not return a null.

Here an NPE needs to be caught becuase the EmbeddedDriver.getConnection can return null when

  1) A database does not exist ( Url is valid )
  2) The Url is invalid ( which is the case here )

 After this NPE is caught we need to throw a SQLException saying that the DB doesn't exist.

 I hope everyone is ok with this approach, please comment and kindly vote for the suggested

> NPE when passing in url instead of database name to EmbeddedXADataSource
> ------------------------------------------------------------------------
>          Key: DERBY-95
>          URL: http://issues.apache.org/jira/browse/DERBY-95
>      Project: Derby
>         Type: Bug
>   Components: JDBC
>     Reporter: Myrna van Lunteren
>     Priority: Minor
>      Fix For:

> When passing in a url (e.g. jdbc:derby:mydb) instead of just the database name (e.g.
mydb) the XADataSource gives a NullPointerException.
> It should either handle this a little more gracefully & give an error, or accept
the url (like EmbeddedDataSource does).

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