Augmenting a URL's path using URIBuilder

App.java

package net.wood;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.Collections;
import java.util.Objects;
import java.util.List;

import org.apache.http.client.utils.URIBuilder;

public class App {
    private static final String token = "axolotl";

    private static String base;

    public static void main(String[] argv)
            throws URISyntaxException {
        if (argv.length <= 0) {
            base = "https://example.com/path/";
        } else {
            base = argv[];
        }

        URIBuilder uriBuilder = new URIBuilder(base);
        List<String> pathSegments = uriBuilder.getPathSegments();
        while(pathSegments.remove(""));
        printList("before", pathSegments);
        System.out.println();

        Collections.addAll(pathSegments,
                           "request-a-copy",
                           token);
        printList("after", pathSegments);
        System.out.println();

        URI uri = uriBuilder.setPathSegments(pathSegments).build();
        System.out.println(uri.toString());
    }

    private static void printList(String title, List<String> theList) {
        System.out.println(title);
        for (String element : theList) {
            System.out.print(null == element ? "null" : element.getClass());
            System.out.print(":  ");
            System.out.format("'%s'\n", element);
        }
    }
}