Bug 132914 "Invalid page number" error message is hard coded.
"Invalid page number" error message is hard coded in DocumentProcessor.java. This must be externalized into *.properties file. If there are other hard coded error messages, please also externalize.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
{
			resultSetArray = ReportEngineService.getInstance( ).getResultSets(
					doc );
			doc.close( );
		}
		catch ( RemoteException e )
		{
			e.printStackTrace( );
			throw new ReportServiceException( e.getLocalizedMessage( ) );
		}
		if ( resultSetArray == null || resultSetArray.length <= 0 )
		{
			throw new ReportServiceException(
					"There is no result set available for extracting the data." ); 
		}
		return transformResultSetArray( resultSetArray );
	}
	public List getResultSetsMetadata( String docName, String instanceId,
			InputOptions options ) throws ReportServiceException
	{
		
		return null;
	}
	public void getImage( String docName, String imageId, OutputStream out,
			InputOptions options ) throws ReportServiceException
	{
		try
		{
			
			ReportEngineService.getInstance( ).renderImage( imageId, out );