config/src/main/java/org/springframework/security/config/annotation/web/configurers/AbstractAuthenticationFilterConfigurer.java
protected final void updateAuthenticationDefaults() {
		if (loginProcessingUrl == null) {
			loginProcessingUrl(loginPage);
		}
		if (failureHandler == null) {
			failureUrl(loginPage + "?error");
		}

		final LogoutConfigurer<B> logoutConfigurer = getBuilder().getConfigurer(
				LogoutConfigurer.class);
		if (logoutConfigurer != null && !logoutConfigurer.isCustomLogoutSuccess()) {
			logoutConfigurer.logoutSuccessUrl(loginPage + "?logout");
		}
	}
protected final void updateAuthenticationDefaults() {
		if (loginProcessingUrl == null) {
			loginProcessingUrl(loginPage);
		}
		if (failureHandler == null) {
			failureUrl(loginPage + "?error");
		}

		final LogoutConfigurer<B> logoutConfigurer = getBuilder().getConfigurer(
				LogoutConfigurer.class);
		if (logoutConfigurer != null && !logoutConfigurer.isCustomLogoutSuccess()) {
			logoutConfigurer.logoutSuccessUrl(loginPage + "?logout");
		}
	}
protected final void updateAuthenticationDefaults ( ) { if ( loginProcessingUrl == null ) { loginProcessingUrl ( loginPage ) ; } if ( failureHandler == null ) { failureUrl ( loginPage + "?error" ) ; } final LogoutConfigurer < B > logoutConfigurer = getBuilder ( ) . getConfigurer ( LogoutConfigurer . class ) ; if ( logoutConfigurer != null && ! logoutConfigurer . isCustomLogoutSuccess ( ) ) { logoutConfigurer . logoutSuccessUrl ( loginPage + "?logout" ) ; } }
Updates the default values for authentication.

@throws Exception
Updates the default values for authentication .