[JAVA] Code of the part where server.servlet.session.timeout is set in spring.session.timeout in spring-boot2 system

pom.xml

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.1.RELEASE</version>
	</parent>

If you go through various things, `spring.session.timeout``` will have the value of `server.servlet.session.timeout (`` server.session.timeout in the 1st system) It says that it will be set. How is this done? I thought, so I read the code of the relevant part.

SessionProperties

package org.springframework.boot.autoconfigure.session;

@ConfigurationProperties(prefix = "spring.session")
public class SessionProperties {
	//(Omitted)
	public SessionProperties(ObjectProvider<ServerProperties> serverProperties) {
		ServerProperties properties = serverProperties.getIfUnique();
		Session session = (properties == null ? null
				: properties.getServlet().getSession());
		this.timeout = (session == null ? null : session.getTimeout());
	}

Nothing happens, I set the value of `ServerPropertie.getServlet (). GetSession (). GetTimeout ()` to `` `timeoutin the constructor of SessionProperties``` It was just.