config/src/main/java/org/springframework/security/config/annotation/web/configurers/AbstractInterceptUrlConfigurer.java
private FilterSecurityInterceptor createFilterSecurityInterceptor(H http,
			FilterInvocationSecurityMetadataSource metadataSource,
			AuthenticationManager authenticationManager) throws Exception {
		FilterSecurityInterceptor securityInterceptor = new FilterSecurityInterceptor();
		securityInterceptor.setSecurityMetadataSource(metadataSource);
		securityInterceptor.setAccessDecisionManager(getAccessDecisionManager(http));
		securityInterceptor.setAuthenticationManager(authenticationManager);
		securityInterceptor.afterPropertiesSet();
		return securityInterceptor;
	}
private FilterSecurityInterceptor createFilterSecurityInterceptor(H http,
			FilterInvocationSecurityMetadataSource metadataSource,
			AuthenticationManager authenticationManager) throws Exception {
		FilterSecurityInterceptor securityInterceptor = new FilterSecurityInterceptor();
		securityInterceptor.setSecurityMetadataSource(metadataSource);
		securityInterceptor.setAccessDecisionManager(getAccessDecisionManager(http));
		securityInterceptor.setAuthenticationManager(authenticationManager);
		securityInterceptor.afterPropertiesSet();
		return securityInterceptor;
	}
private FilterSecurityInterceptor createFilterSecurityInterceptor ( H http , FilterInvocationSecurityMetadataSource metadataSource , AuthenticationManager authenticationManager ) throws Exception { FilterSecurityInterceptor securityInterceptor = new FilterSecurityInterceptor ( ) ; securityInterceptor . setSecurityMetadataSource ( metadataSource ) ; securityInterceptor . setAccessDecisionManager ( getAccessDecisionManager ( http ) ) ; securityInterceptor . setAuthenticationManager ( authenticationManager ) ; securityInterceptor . afterPropertiesSet ( ) ; return securityInterceptor ; }
Creates the {@link FilterSecurityInterceptor}

@param http the builder to use
@param metadataSource the {@link FilterInvocationSecurityMetadataSource} to use
@param authenticationManager the {@link AuthenticationManager} to use
@return the {@link FilterSecurityInterceptor}
@throws Exception
Creates the { @link FilterSecurityInterceptor }