config/src/main/java/org/springframework/security/config/annotation/web/configurers/LogoutConfigurer.java
public LogoutConfigurer<H> addLogoutHandler(LogoutHandler logoutHandler) {
		Assert.notNull(logoutHandler, "logoutHandler cannot be null");
		this.logoutHandlers.add(logoutHandler);
		return this;
	}
public LogoutConfigurer<H> addLogoutHandler(LogoutHandler logoutHandler) {
		Assert.notNull(logoutHandler, "logoutHandler cannot be null");
		this.logoutHandlers.add(logoutHandler);
		return this;
	}
Adds a {@link LogoutHandler}. The {@link SecurityContextLogoutHandler} is added as
the last {@link LogoutHandler} by default.

@param logoutHandler the {@link LogoutHandler} to add
@return the {@link LogoutConfigurer} for further customization