DateTypeHandler throws NullPointerException on null Timestamps for some drivers
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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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