Bug 151202 [regression]Set default master page to item in cell will cause blank page
Description: Set default master page to item in cell will cause blank page Steps to reproduce: 1. New a report 2. Insert a grid(1*1) 3. Insert a label to grid cell 4. Select the label and set default master page to it 5. Preview in Web Viewer and pdf Expected result: No blank page, just one page for grid display. Actual result: A blank page before grid page
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFAbstractLM.java
closeExecutor( );
				status = STATUS_END;
				
				
				if ( isPageBreakAfter( ) )
				{
					return true;
				}
			case STATUS_END :
				processEndStatus( );
				return false;
		}
		return hasNextPage;
	}
	protected void closeExecutor( )
	{
		if ( executor != null )
		{
			executor.close( );
		}
	}
	protected void processEndStatus( )
	{
		start( );
		end( );
	}
	protected abstract boolean layoutChildren( );
	public boolean isFinished( )
	{