Bug 178519 Problems in multi-rows header
Please see the attachments.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFTableRegionLM.java
this.layoutInfo = layoutInfo;
	}
	public void initialize( ITableBandContent content,  RowArea lastRowArea )
	{
		this.executor = new DOMReportItemExecutor( content );
		this.executor.execute( );
		this.lastRow = lastRowArea;
	}
	
	protected void initialize()
	{
		super.initialize( );
		
	}
	protected int getAvaHeight( )
	{
		return Integer.MAX_VALUE;
	}
	protected void buildTableLayoutInfo( )
	{
	}
	protected IReportItemExecutor createExecutor( )
	{
		return this.executor;
	}
	protected void repeat( )
	{
	}
}