https://github.com/spring-projects/spring-framework: Spring Web (Spring IO)
  • Juergen Hoeller 
Implementations to adapt to the underlying org.springframework.http.client.reactive reactive HTTP adapter and HttpHandler. 
/**
 * Implementations to adapt to the underlying
 * {@code org.springframework.http.client.reactive} reactive HTTP adapter
 * and {@link org.springframework.http.server.reactive.HttpHandler}.
 */
@NonNullApi
@NonNullFields
package org.springframework.web.server.adapter;

import org.springframework.lang.NonNullApi;
import org.springframework.lang.NonNullFields;