Bug 176569 123 is treated as Blank Value in Scalar Parameter [0705]
Description: 123 is treated as Blank Value in Scalar Parameter. Build number: 2.2.0.v20070307-1128 Steps to reproduce: 1. New a Parameter. 2. Untick Allow null value checkbox. Expected result: Parameter works correctly. Actual result: Another Parameter dialogue pops up and when you click OK button again, warning message "NewParameter cannot be blank" pops up (see the screenshot). Error log: N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
* 
	 * @param request
	 * @throws Exception
	 */
	protected void __init( HttpServletRequest request ) throws Exception
	{
		
		if ( ParameterAccessor.isGetImageOperator( request ) )
		{
			return;
		}
		this.category = "BIRT"; 
		this.masterPageContent = ParameterAccessor
				.isMasterPageContent( request );
		this.isDesigner = ParameterAccessor.isDesigner( request );
		this.bookmark = ParameterAccessor.getBookmark( request );
		this.reportPage = ParameterAccessor.getPage( request );
		this.reportPageRange = ParameterAccessor.getPageRange( request );
		
		if ( IBirtConstants.SERVLET_PATH_FRAMESET.equalsIgnoreCase( request
				.getServletPath( ) )
				|| IBirtConstants.SERVLET_PATH_DOWNLOAD
						.equalsIgnoreCase( request.getServletPath( ) ) )
		{
			this.reportDocumentName = ParameterAccessor.getReportDocument(
					request, null, true );
		}
		else
		{
			this.reportDocumentName = ParameterAccessor.getReportDocument(