JDBC - Handle unknown encoding properly in AbstractJdbc2ResultSet

For the UNKNOWN encoding the JDBC driver has a default encoding name
that is null.  Calling ((String)s).getBytes(null) is an error and the
apparent API is ((Encoding)e).encode((String)s) which handles the null case.

Kris Jurka
Index: src/interfaces/jdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java
===================================================================
RCS file: /projects/cvsroot/pgsql-server/src/interfaces/jdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java,v
retrieving revision 1.7
diff -c -r1.7 AbstractJdbc2ResultSet.java
*** src/interfaces/jdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java    2002/09/06 21:23:06    1.7
--- src/interfaces/jdbc/org/postgresql/jdbc2/AbstractJdbc2ResultSet.java    2002/09/09 21:55:57
***************
*** 1546,1559 ****
                  case Types.REAL:
                  case Types.TINYINT:

!                     try
!                     {
!                         rowBuffer[columnIndex] = String.valueOf( updateValues.get( columnName )
).getBytes(connection.getEncoding().name()); 
!                     }
!                     catch ( UnsupportedEncodingException ex)
!                     {
!                         throw new SQLException("Unsupported Encoding " + connection.getEncoding().name());
!                     }

                  case Types.NULL:
                      continue;
--- 1546,1552 ----
                  case Types.REAL:
                  case Types.TINYINT:

!                     rowBuffer[columnIndex] = connection.getEncoding().encode(String.valueOf( updateValues.get(
columnName) )); 

                  case Types.NULL:
                      continue;