Bug 140974 bad assert in ScalarParameterFragment
The following assert appears around line 98 in org.eclipse.birt.report.viewer.aggregation.parameter.ScalarParameterFragment assert paramDefaultValueObj instanceof String; If the report does not have a default value for the parameter in the report, then this assert fails even though the code that follows it explicitly handles a null value. Since null is a valid value, the assert should be assert (paramDefaultValueObj == null) || (paramDefaultValueObj instanceof String);
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
webAppLocale = getLocaleFromString( context
				.getInitParameter( INIT_PARAM_LOCALE ) );
		isWorkingFolderAccessOnly = Boolean
				.valueOf(
						context
								.getInitParameter( INIT_PARAM_WORKING_FOLDER_ACCESS_ONLY ) )
				.booleanValue( );
		clearDocuments( );
	}
	/**
	 * Check whether the viewer is used in designer or not.
	 * 
	 * @param request
	 * @return
	 */
	public static boolean isDesigner( HttpServletRequest request )
	{
		boolean inDEsigner = false;
		if ( "true".equalsIgnoreCase( getParameter( request, PARAM_DESIGNER ) ) ) 
		{
			inDEsigner = true;
		}
		return inDEsigner;
	}
	/***************************************************************************
	 * For export data
	 **************************************************************************/
	/**
	 * Check whether the request is to get image.
	 *