Bug 124985 Data set component returns no rows for the JDBC driver
data/org.eclipse.birt.report.data.oda.jdbc/src/org/eclipse/birt/report/data/oda/jdbc/Statement.java
resultmd = null;
		}
		if ( resultmd != null )
		{
			try
			{
				
				
				
				resultmd.getColumnCount( );
			}
			catch ( SQLException e )
			{
				resultmd = null;
			}
			if ( resultmd != null )
			{
				cachedResultMetaData = new ResultSetMetaData( resultmd );
			}
		}
		
		if ( cachedResultMetaData == null )
		{