Bug 314088 The table row height does not work correctly in PDF
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/nLayout/area/impl/BlockContainerArea.java
currentBP = 0;
		if ( children.size( ) > 0 )
		{
			Iterator iter = children.iterator( );
			int y = getOffsetY( );
			int h = 0;
			while ( iter.hasNext( ) )
			{
				ContainerArea area = (ContainerArea) iter.next( );
				
				{
					area.setAllocatedPosition( getOffsetX( ), y );
					int ah = area.getAllocatedHeight( );
					y += ah;
					h += ah;
					if ( area.finished )
					{
						currentBP += ah;
					}
				}
			}
			setContentHeight( h );
		}
		else
		{
			setContentHeight( 0 );
		}
	}
}