WebConfig.java

package org.springframework.issues.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.AsyncSupportConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
@ComponentScan(basePackages="org.springframework.issues")
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {

	@Override
	public void configureAsyncSupport(AsyncSupportConfigurer configurer) {
		configurer.setDefaultTimeout(5000);
	}

}