spring-session-core/src/main/java/org/springframework/session/security/web/authentication/SpringSessionRememberMeServices.java
protected boolean rememberMeRequested(HttpServletRequest request, String parameter) {
		String rememberMe = request.getParameter(parameter);
		if (rememberMe != null) {
			if (rememberMe.equalsIgnoreCase("true") || rememberMe.equalsIgnoreCase("on")
					|| rememberMe.equalsIgnoreCase("yes") || rememberMe.equals("1")) {
				return true;
			}
		}
		if (logger.isDebugEnabled()) {
			logger.debug("Did not send remember-me cookie (principal did not set "
					+ "parameter '" + parameter + "')");
		}
		return false;
	}
protected boolean rememberMeRequested(HttpServletRequest request, String parameter) {
		String rememberMe = request.getParameter(parameter);
		if (rememberMe != null) {
			if (rememberMe.equalsIgnoreCase("true") || rememberMe.equalsIgnoreCase("on")
					|| rememberMe.equalsIgnoreCase("yes") || rememberMe.equals("1")) {
				return true;
			}
		}
		if (logger.isDebugEnabled()) {
			logger.debug("Did not send remember-me cookie (principal did not set "
					+ "parameter '" + parameter + "')");
		}
		return false;
	}
Allows customization of whether a remember-me login has been requested. The default
is to return {@code true} if the configured parameter name has been included in the
request and is set to the value {@code true}.
@param request the request submitted from an interactive login, which may include
additional information indicating that a persistent login is desired.
@param parameter the configured remember-me parameter name.
@return true if the request includes information indicating that a persistent login
has been requested.