public TomcatServiceBuilder serviceName(String serviceName) {
        this.serviceName = requireNonNull(serviceName, "serviceName");
        return this;
    }
Sets the name of the {@link StandardService} of an embedded Tomcat. The default serviceName is
{@code "Catalina"}.
tomcat10/src/main/java/com/linecorp/armeria/server/tomcat/TomcatServiceBuilder.java