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
final static int DEFAULT_PAGE_HEIGHT = 841889;
	/**
	 * current page area
	 */
	protected PageArea page;
	protected IReportContent report;
	protected IPageContent pageContent;
	protected IReportExecutor reportExecutor = null;
	protected PDFReportLayoutEngine engine;
	protected int pageNumber = 1;
	public PDFPageLM( PDFReportLayoutEngine engine,
			PDFLayoutEngineContext context, IReportContent report,
			IContentEmitter emitter, IReportExecutor executor )
	{
		super( context, null, null, emitter, null );
		this.reportExecutor = executor;
		this.engine = engine;
		this.report = report;
	}
	protected void newContext( )
	{
		createRoot( );
		context.setMaxHeight( page.getRoot( ).getHeight( ) );
		context.setMaxWidth( page.getRoot( ).getWidth( ) );
		layoutHeader( );
		layoutFooter( );
		updateBodySize( page );
		context.setMaxHeight( page.getBody( ).getHeight( ) );
		context.setMaxWidth( page.getBody( ).getWidth( ) );
		setMaxAvaWidth( context.getMaxWidth( ) );