Bug 315035 [Automation][Regression]Error happened while merge cells in grid when preview as pdf/ppt/ps
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/nLayout/area/impl/TableLayout.java
continue;
			}
			if ( cell instanceof DummyCell )
			{
				width = resolveBottomBorder( ( (DummyCell) cell ).getCell( ) );
			}
			else
			{
				width = resolveBottomBorder( cell );
			}
			if ( width > result )
				result = width;
			i = i + cell.getColSpan( ) - 1;
		}
		
		if ( result > 0 )
		{
			row.setHeight( row.getHeight( ) + result );
			for ( int i = startCol; i <= endCol; i++ )
			{
				CellArea cell = row.getCell( i );
				if ( cell != null )
				{
					if(cell instanceof DummyCell)
					{
						CellArea oc = ((DummyCell)cell).getCell( );
						oc.setHeight( oc.getHeight( ) + result );
					}
					else