public static TomcatServiceBuilder builder(File rootDirOrDocBase, String relativePath) {
        return builder(requireNonNull(rootDirOrDocBase, "rootDirOrDocBase").toPath(), relativePath);
    }
Creates a new {@link TomcatServiceBuilder} with the web application at the specified document base,
which can be a directory or a JAR/WAR file.
tomcat10/src/main/java/com/linecorp/armeria/server/tomcat/TomcatService.java