web/src/main/java/org/springframework/security/web/authentication/preauth/AbstractPreAuthenticatedProcessingFilter.java
protected void successfulAuthentication(HttpServletRequest request,
			HttpServletResponse response, Authentication authResult) throws IOException, ServletException {
		if (logger.isDebugEnabled()) {
			logger.debug("Authentication success: " + authResult);
		}
		SecurityContextHolder.getContext().setAuthentication(authResult);
		// Fire event
		if (this.eventPublisher != null) {
			eventPublisher.publishEvent(new InteractiveAuthenticationSuccessEvent(
					authResult, this.getClass()));
		}

		if (authenticationSuccessHandler != null) {
			authenticationSuccessHandler.onAuthenticationSuccess(request, response, authResult);
		}
	}
protected void successfulAuthentication(HttpServletRequest request,
			HttpServletResponse response, Authentication authResult) throws IOException, ServletException {
		if (logger.isDebugEnabled()) {
			logger.debug("Authentication success: " + authResult);
		}
		SecurityContextHolder.getContext().setAuthentication(authResult);
		// Fire event
		if (this.eventPublisher != null) {
			eventPublisher.publishEvent(new InteractiveAuthenticationSuccessEvent(
					authResult, this.getClass()));
		}

		if (authenticationSuccessHandler != null) {
			authenticationSuccessHandler.onAuthenticationSuccess(request, response, authResult);
		}
	}
Puts the <code>Authentication</code> instance returned by the authentication
manager into the secure context.