Bug 143671 [Linux-As][Smoke]Parameter can't be used.
Details: [Linux-As]Parameter can't be used. Setp: 1.New a report design. 2.New a paremeter. 3.Preview and click Run Report Parameter. 4.Dialog pop up and press OK. Actual resutl: Report error.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
if ( workingFolder != null
				&& workingFolder.trim( ).endsWith( File.separator ) )
		{
			workingFolder = workingFolder.trim( ).substring( 0,
					workingFolder.trim( ).length( ) - 1 );
		}
		webAppLocale = getLocaleFromString( context
				.getInitParameter( INIT_PARAM_LOCALE ) );
		isWorkingFolderAccessOnly = Boolean
				.valueOf(
						context
								.getInitParameter( INIT_PARAM_WORKING_FOLDER_ACCESS_ONLY ) )
				.booleanValue( );
		
		String s_maxRows = context.getInitParameter( INIT_PARAM_VIEWER_MAXROWS );
		try
		{
			maxRows = Integer.valueOf( s_maxRows ).intValue( );
		}
		catch ( NumberFormatException e )
		{
			maxRows = -1;
		}
		clearDocuments( );
	}
	/**
	 * Check whether the viewer is used in designer or not.
	 *