(Java) List all Labels in the User's Mailbox

List all Labels in the GMail User's Mailbox

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    boolean success;

    CkHttp http = new CkHttp();
    http.put_AuthToken("GMAIL-ACCESS-TOKEN");

    String userId = "me";
    http.SetUrlVar("userId",userId);

    String url = "https://www.googleapis.com/gmail/v1/users/{$userId}/labels";

    http.put_SessionLogFilename("c:/temp/qa_output/sessionLog.txt");

    // Get the list of GMail labels as JSON.
    CkStringBuilder sb = new CkStringBuilder();
    success = http.QuickGetSb(url,sb);
    if (success != true) {
        System.out.println(http.lastErrorText());
        return;
        }

    CkJsonObject json = new CkJsonObject();
    json.LoadSb(sb);
    json.put_EmitCompact(false);
    System.out.println(json.emit());

    if (http.get_LastStatus() != 200) {
        System.out.println("Failed.");
        return;
        }
  }
}