src/main/java/me/creepermaxcz/mcbots/Bot.java

@@ -119,7 +119,7 @@ public class Bot extends Thread {
                     new ArrayList<>(),
                     true,
                     new ArrayList<>(),
-                    new LastSeenMessage(uuid, new byte[0])
+                    null
             ));
         } else {
             // Send chat message
@@ -132,7 +132,7 @@ public class Bot extends Thread {
                     new byte[0],
                     true,
                     new ArrayList<>(),
-                    new LastSeenMessage(uuid, new byte[0])
+                    null
             ));
         }
     }

src/main/java/me/creepermaxcz/mcbots/MainListener.java

@@ -41,9 +41,11 @@ public class MainListener implements SessionListener {
         } else {  // If this was normal case when unsigned content was not null.
             if (message instanceof TextComponent) { // For normal chat packets.
                 // Log.chat(Utils.getFullText((TextComponent) message, Main.coloredChat)); // Use this for only messages.
-                Log.chat(Utils.getFullText((TextComponent) sender, (TextComponent) message, Main.coloredChat)); // Use this for messages and sender's username.
+                if (sender != null)
+                    Log.chat(Utils.getFullText((TextComponent) sender, (TextComponent) message, Main.coloredChat)); // Use this for messages and sender's username.
+                else
+                    Log.chat(Utils.getFullText(null, (TextComponent) message, Main.coloredChat)); // Use this for messages and sender's username.
             }
-
             if (message instanceof TranslatableComponent) { // For system chat packets (such as user joining server).
                 TranslatableComponent msg = (TranslatableComponent) message;
                 Log.chat("[T]", Utils.translate(msg));

src/main/java/me/creepermaxcz/mcbots/Utils.java

@@ -10,6 +10,7 @@ import net.kyori.adventure.text.TranslatableComponent;
 import net.kyori.adventure.text.format.NamedTextColor;
 import net.kyori.adventure.text.format.Style;
 import net.kyori.adventure.text.format.TextDecoration;
+import org.jetbrains.annotations.Nullable;
 import org.w3c.dom.Text;
 
 import java.io.InputStream;
@@ -59,22 +60,22 @@ public class Utils {
      * @param colored Whether if this output was colored or not.
      * @return Returns String in "Username : Message" format.
      */
-    public static String getFullText(TextComponent sender, TextComponent message, boolean colored) {
+    public static String getFullText(@Nullable TextComponent sender, TextComponent message, boolean colored) {
         if (colored) { // Check if we are using colors.
-            Style senderStyle = sender.style();
             Style messageStyle = message.style();
-
             StringBuilder outString = new StringBuilder();
 
-            if (senderStyle.color() != null) { // Generate sender text with color.
+            if (sender != null) {
-                NamedTextColor color = (NamedTextColor) senderStyle.color();
+                Style senderStyle = sender.style();
-                outString.append(colorize(sender.content(), getColor(color)));
+                if (senderStyle.color() != null) { // Generate sender text with color.
-            } else {
+                    NamedTextColor color = (NamedTextColor) senderStyle.color();
-                outString.append(sender.content());
+                    outString.append(colorize(sender.content(), getColor(color)));
+                } else {
+                    outString.append(sender.content());
+                }
+                outString.append(" : "); // Add delimiter as : between sender and message.
             }
 
-            outString.append(" : "); // Add delimiter as : between sender and message.
-
             if (messageStyle.color() != null) { // Generate message text with color.
                 NamedTextColor color = (NamedTextColor) messageStyle.color();
                 outString.append(colorize(message.content(), getColor(color)));
@@ -84,7 +85,10 @@ public class Utils {
 
             return outString.toString();
         } else { // When color formating was disabled.
-            return sender.content() + " : " + message.content();
+            if (sender == null)
+                return message.content();
+            else
+                return sender.content() + " : " + message.content();
         }
     }
 
@@ -98,24 +102,28 @@ public class Utils {
      * @param colored Whether if this output was colored or not.
      * @return Returns String in "Username : Message" format.
      */
-    public static String getFullText(TextComponent sender, String message, boolean colored) {
+    public static String getFullText(@Nullable TextComponent sender, String message, boolean colored) {
         if (colored) { // Check if we are using colors.
-            Style senderStyle = sender.style();
-
             StringBuilder outString = new StringBuilder();
 
-            if (senderStyle.color() != null) { // Generate sender text with color.
+            if (sender != null) {
-                NamedTextColor color = (NamedTextColor) senderStyle.color();
+                Style senderStyle = sender.style();
-                outString.append(colorize(sender.content(), getColor(color)));
+                if (senderStyle.color() != null) { // Generate sender text with color.
-            } else {
+                    NamedTextColor color = (NamedTextColor) senderStyle.color();
-                outString.append(sender.content());
+                    outString.append(colorize(sender.content(), getColor(color)));
+                } else {
+                    outString.append(sender.content());
+                }
+                outString.append(" : "); // Add delimiter as : between sender and message.
             }
 
-            outString.append(" : "); // Add delimiter as : between sender and message.
             outString.append(message);
             return outString.toString();
         } else { // When color formating was disabled.
-            return sender.content() + " : " + message;
+            if (sender == null)
+                return message;
+            else
+                return sender.content() + " : " + message;
         }
     }