Another patch

Hopefully we can slip this in before 7.1.1

This patch fixes a bug which occurs when setObject(1,obj) is called and obj
is of type Object, and is null

Regards,

Dave

[root@ebox2 jdbc2]# diff PreparedStatement.java.orig PreparedStatement.java
517a518,521
>               if (null == x){
>                       setNull(parameterIndex,Types.OTHER);
>                       return;
>               }
568a573,576
>               if (null == x){
>                       setNull(parameterIndex,Types.OTHER);
>                       return;
>               }