diff --git a/src/main/java/net/thauvin/erik/mobibot/TwitterOAuth.java b/src/main/java/net/thauvin/erik/mobibot/TwitterOAuth.java
deleted file mode 100644
index 2690710..0000000
--- a/src/main/java/net/thauvin/erik/mobibot/TwitterOAuth.java
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * TwitterOAuth.java
- *
- * Copyright (c) 2004-2021, Erik C. Thauvin (erik@thauvin.net)
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * Neither the name of this project nor the names of its contributors may be
- * used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package net.thauvin.erik.mobibot;
-
-import twitter4j.TwitterException;
-import twitter4j.TwitterFactory;
-import twitter4j.auth.AccessToken;
-import twitter4j.auth.RequestToken;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-
-/**
- * The TwitterOAuth class.
- *
- * Go to http://twitter.com/oauth_clients/new to register your bot.
- *
- * Then execute:
- *
- *
- * java -cp "mobibot.jar:lib/*" net.thauvin.erik.mobibot.TwitterOAuth <consumerKey> <consumerSecret>
- *
- *
- * and follow the prompts/instructions.
- *
- * @author Erik C. Thauvin
- * @author Twitter4J
- * @created Sep 13, 2010
- * @since 1.0
- */
-@SuppressWarnings("PMD.UseUtilityClass")
-public final class TwitterOAuth {
- /**
- * Twitter OAuth Client Registration.
- *
- * @param args The consumerKey and consumerSecret should be passed as arguments.
- * @throws TwitterException If an error occurs.
- * @throws IOException If an IO error occurs.
- */
- @SuppressWarnings({ "PMD.SystemPrintln" })
- public static void main(final String[] args) throws TwitterException, IOException {
- if (args.length == 2) {
- final twitter4j.Twitter twitter = new TwitterFactory().getInstance();
- twitter.setOAuthConsumer(args[0], args[1]);
- final RequestToken requestToken = twitter.getOAuthRequestToken();
- AccessToken accessToken = null;
- try (final BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
- while (null == accessToken) {
- System.out.println("Open the following URL and grant access to your account:");
- System.out.println(requestToken.getAuthorizationURL());
- System.out.print("Enter the PIN (if available) or just hit enter.[PIN]:");
- final String pin = br.readLine();
- try {
- if (pin != null && pin.length() > 0) {
- accessToken = twitter.getOAuthAccessToken(requestToken, pin);
- } else {
- accessToken = twitter.getOAuthAccessToken();
- }
-
- System.out.println(
- "Please add the following to the bot's property file:" + "\n\n" + "twitter-consumerKey="
- + args[0] + '\n' + "twitter-consumerSecret=" + args[1] + '\n' + "twitter-token="
- + accessToken.getToken() + '\n' + "twitter-tokenSecret=" + accessToken
- .getTokenSecret());
- } catch (TwitterException te) {
- if (401 == te.getStatusCode()) {
- System.out.println("Unable to get the access token.");
- } else {
- te.printStackTrace();
- }
- }
- }
- }
- } else {
- System.out.println("Usage: " + TwitterOAuth.class.getName() + " ");
- }
-
- System.exit(0);
- }
-}
diff --git a/src/main/kotlin/net/thauvin/erik/mobibot/TwitterOAuth.kt b/src/main/kotlin/net/thauvin/erik/mobibot/TwitterOAuth.kt
new file mode 100644
index 0000000..31bde39
--- /dev/null
+++ b/src/main/kotlin/net/thauvin/erik/mobibot/TwitterOAuth.kt
@@ -0,0 +1,113 @@
+/*
+ * TwitterOAuth.kt
+ *
+ * Copyright (c) 2004-2021, Erik C. Thauvin (erik@thauvin.net)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of this project nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.thauvin.erik.mobibot
+
+import twitter4j.TwitterException
+import twitter4j.TwitterFactory
+import twitter4j.auth.AccessToken
+import java.io.BufferedReader
+import java.io.IOException
+import java.io.InputStreamReader
+import kotlin.system.exitProcess
+
+/**
+ * The `TwitterOAuth` class.
+ *
+ * Go to [https://developer.twitter.com/en/apps](https://developer.twitter.com/en/apps) to register your bot.
+ *
+ * Then execute:
+ *
+ * `java -cp mobibot.jar net.thauvin.erik.mobibot.TwitterOAuth `
+ *
+ * and follow the prompts/instructions.
+ *
+ * @author [Erik C. Thauvin](https://erik.thauvin.net)
+ * @author [Twitter4J Example](https://twitter4j.org/en/code-examples.html#oauth)
+ */
+object TwitterOAuth {
+ /**
+ * Twitter OAuth Client Registration.
+ *
+ * @param args The consumerKey and consumerSecret should be passed as arguments.
+ */
+ @Throws(TwitterException::class, IOException::class)
+ @JvmStatic
+ fun main(args: Array) {
+ if (args.size == 2) {
+ with(TwitterFactory.getSingleton()) {
+ setOAuthConsumer(args[0], args[1])
+ val requestToken = oAuthRequestToken
+ var accessToken: AccessToken? = null
+ BufferedReader(InputStreamReader(System.`in`)).use { br ->
+ while (null == accessToken) {
+ print(
+ """
+ Open the following URL and grant access to your account:
+
+ ${requestToken.authorizationURL}
+
+ Enter the PIN (if available) or just hit enter. [PIN]: """.trimIndent()
+ )
+ val pin = br.readLine()
+ try {
+ accessToken = if (!pin.isNullOrEmpty()) {
+ getOAuthAccessToken(requestToken, pin)
+ } else {
+ oAuthAccessToken
+ }
+ println(
+ """
+ Please add the following to the bot's property file:
+
+ twitter-consumerKey=${args[0]}
+ twitter-consumerSecret=${args[1]}
+ twitter-token=${accessToken?.token}
+ twitter-tokenSecret=${accessToken?.tokenSecret}
+ """.trimIndent()
+ )
+ } catch (te: TwitterException) {
+ @Suppress("MagicNumber")
+ if (401 == te.statusCode) {
+ println("Unable to get the access token.")
+ } else {
+ te.printStackTrace()
+ }
+ }
+ }
+ }
+ }
+ } else {
+ println("Usage: ${TwitterOAuth::class.java.name} ")
+ }
+ exitProcess(0)
+ }
+}