Bug 144613 Blank page when set group page break before as always.
Description: Blank page when set group page break before as always. Steps to reproduce: 1. Insert a table. 2. Add a group, set group page break before to always 3. Delete table header and footer 4. Preview in html and pdf Expected result: No blank page Actual result: A blank page in html. If you set group page-break-after to always and preview, no blank page.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFPageLM.java
bodyRight = Math.max( 0, bodyRight );
		bodyRight = Math.min( pageRoot.getWidth( ) - bodyLeft, bodyRight );
		body.setWidth( pageRoot.getWidth( ) - bodyLeft - bodyRight );
		body.setHeight( pageRoot.getHeight( ) - headerHeight - footerHeight );
		page.setBody( body );
		pageRoot.addChild( body );
		
	}
	protected IReportItemExecutor createExecutor( )
	{
		return new BlockStackingExecutor( content, new ReportStackingExecutor(
				reportExecutor ) );
	}
	protected void closeLayout( )
	{
	}
	protected boolean isRootEmpty( )
	{
		if ( page != null )
		{
			IContainerArea body = page.getBody( );
			if ( body.getChildrenCount( ) > 0 || isFirst )
			{
				return false;
			}
		}
		return true;
	}
}