Bug 195217 [2.1.3]Border is missing on table group cell when preview in PDF[0300][1200]
Description: Get the attached report design file, preview in PDF, the bottom border is missing in table group cell. Build version:2.1.3.v20070702-1703 Steps to reproduce: 1.Get the attached report design. There is a table with group in the layout, and set the "Drop" property to "Detail", and set its border. 2. Preview in pdf, the buttom border is missing. Expected result: No border is missing. Error log: N/A.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/cache/TableAreaLayout.java
return cell != null && cell.getRowSpan( ) < 0;
	}
	
	protected void mergeDropCell(RowArea row)
	{
		if(unresolvedRow==null )
		{
			return;
		}
		CellArea[] cells = new CellArea[columnNumber];
		Iterator iter = row.getChildren( );
		while(iter.hasNext( ))
		{
			CellArea cell = (CellArea)iter.next( );
			int colStart = cell.getColumnID( );
			int colEnd = colStart + cell.getColSpan( );
			for(int i=colStart; i<colEnd; i++)
			{
				int index = colStart - start;
				if(index>=0 && index<columnNumber)
				{
					cells[colStart-start] = cell;
				}
			}
		}
		
		for(int i=0; i<columnNumber; i++)
		{
			if(cells[i]==null)
			{