[jira] Closed: (IBATIS-310) DateTypeHandler throws NullPointerException on null Timestamps for some drivers

["Jeff Butler (JIRA)" <ib...@incubator.apache.org>]

     [ http://issues.apache.org/jira/browse/IBATIS-310?page=all ]
     
Jeff Butler closed IBATIS-310:
------------------------------

    Resolution: Invalid

Not a bug - as explained in the comments.

> DateTypeHandler throws NullPointerException on null Timestamps for some drivers
> -------------------------------------------------------------------------------
>
>          Key: IBATIS-310
>          URL: http://issues.apache.org/jira/browse/IBATIS-310
>      Project: iBatis for Java
>         Type: Bug

>   Components: SQL Maps
>     Versions: 2.1.6
>  Environment: JDBC Driver: JT Open driver for AS/400 (tested 4.8, 4.9, and 5.1.1)
>     Reporter: Matt DeHoust

>
> The problem is in DateTypeHandler in the getResult method.
>     java.sql.Timestamp sqlTimestamp = rs.getTimestamp(columnName);
>     if (rs.wasNull()) {
>       return null;
>     } else {
>       return new java.util.Date(sqlTimestamp.getTime());
>     }
> In our case, the JDBC driver is returning null, but wasNull() returns false because the database value is not null. The AS/400 uses a special low value ('0001-01-01') to represent null dates and timestamps.
> Since Timestamp is an object, the recommended fix is to simply check for null rather than using wasNull as follows.
>     java.sql.Timestamp sqlTimestamp = rs.getTimestamp(columnName);
>     if (sqlTimestamp == null) {
>       return null;
>     } else {
>       return new java.util.Date(sqlTimestamp.getTime());
>     }

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