feat: v1.2.15 - update to MC 1.21.5

Important chat bug fixes

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,31 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshot or app console output**
+If applicable, add screenshots to help explain your problem.
+
+**Whole command used to start the app**
+Please insert the whole command you used to start the app.
+Censoring ip address is recommended.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

README.md

@@ -1,24 +1,28 @@
 # Minecraft bot stress tester
 🤖 A simple open source app written in Java used for stress testing Minecraft servers with bots (fake players).  
 💥 It can be also used to test plugins or minigames.  
-✔️ The MC version of the bots is 1.18 (supports 1.18.2).
+✔️ The MC version of the bots is 1.21.5
+For older MC versions please look in the [releases](https://github.com/crpmax/mc-bots/releases " releases").
 
 ## 🆒 Features
 - ✅ Connect as many bots as you want
 - ✅ Use SOCKS4 or SOCKS5 proxies from file or URL
 - ✅ Receive colored or noncolored chat
 - ✅ Set connection delay
-- ✅ Set message or command on join
+- ✅ Set messages or commands on join
 - ✅ Generate random or real looking nicknames or load from file
+- ✅ Online (premium) account support with login using Microsoft
+- ✅ Control all or selected bots
 
 ## 📖 Usage
-Minimal Java version: 8  
+Minimal Java version: 17  
 Use of pre-compiled jar from [releases](https://github.com/crpmax/mc-bots/releases " releases"):  
 `java -jar mc-bots.jar -s <server address> [arguments]`  
 When running, you can write a chat message to the terminal to send it by all bots.
 
 ## 🧪 Example
-`java -jar mc-bots-1.2.0.jar -s 192.168.0.189:25565 -d 10 11 -r -p BOT_ -c 30`
+`java -jar mc-bots-1.2.15.jar -s 192.168.0.189:25565 -p BOT_ -d 4000 5000 -c 30 -r`  
+This will connect 30 bots to server at 192.168.0.189:25565 with delay 4000-5000 ms and will use real-looking nicknames prefixed with BOT_
 
 <img src="https://imgur.com/XWcckas.png" title="Connected bots" width="350px"/>
 <img src="https://imgur.com/CvJq1Io.gif" title="Sending chat message by bots" width="350px"/>
@@ -27,15 +31,26 @@ When running, you can write a chat message to the terminal to send it by all bot
 ## ⚡ Options
 `-c <count>` The count of bots to connect, default is 1  
 `-d <min> <max>` Set the minimum and maximum connection delay range in ms, default is 4000-5000  
-`-j <message>` The message or command to send on join, does not work with `-m` or `-x` option  
+`-j <message>` Messages or commands to send on join, separated by `&&`, does not work with `-m` or `-x` option  
 `-p <prefix>` Custom bot nickname prefix eg. `BOT_`  
 `-r` Generate real looking nicknames instead of random ones  
 `-n` Do not use color in terminal - useful when the terminal does not support it  
 `-m` Minimal run - do not use any listeners, will not receive chat, useful for large amounts of bots  
 `-x` The most minimal run - No listeners, no control, no chat - useful for large amounts of bots for better performance  
-`-t` Set proxy type - SOCKS4 or SOCKS5  
+`-t <type>` Set proxy type - SOCKS4 or SOCKS5  
-`-l` Set proxy list file  
+`-l <path>` Set proxy list file  
-`-nicks` Set nicknames file  
+`-g` Try to simulate gravity by falling down  
+`-o` Use online (premium) account (login with Microsoft OAuth)  
+`-ar <delay>` Set auto-respawn delay (default is 100 ms, set to -1 to disable)  
+`--nicks <file>` Set nicknames file  
+
+
+## Commands
+Commands can be typed to the console. They are prefixed with `.` or `!`.
+Without the prefix it will be sent as a chat message!  
+`.list` or `.ls` - list all connected bots  
+`.control <nick>` or `.ctrl <nick>` - select one or multiple bots to control  
+`.exit <limit>` or `.leave <limit>` - disconnect all or specified number of bots   
 
 ## ⚠ DISCLAIMER
 **This app is made for educational and testing purposes only.  

build.gradle

@@ -3,22 +3,26 @@ plugins {
 }
 
 group 'me.creepermaxcz.mc-bots'
-version '1.2.2'
+version '1.2.15'
 
-sourceCompatibility = 1.8
+sourceCompatibility = 1.17
-targetCompatibility = 1.8
+targetCompatibility = 1.17
 
 repositories {
     mavenCentral()
     maven { url 'https://jitpack.io' }
+    maven { url 'https://repo.opencollab.dev/maven-snapshots/' }
+    maven { url 'https://repo.opencollab.dev/maven-releases/' }
 }
 
 dependencies {
-    implementation 'com.github.GeyserMC:MCProtocolLib:1.18.2-1'
+    implementation 'org.geysermc.mcprotocollib:protocol:1.21.5-SNAPSHOT'
+    implementation 'net.kyori:adventure-text-serializer-gson:4.16.0'
     implementation 'commons-cli:commons-cli:1.5.0'
     implementation 'com.diogonunes:JColor:5.2.0'
     implementation 'dnsjava:dnsjava:3.4.3'
-    implementation 'org.slf4j:slf4j-nop:1.7.32'
+    implementation 'org.slf4j:slf4j-nop:2.0.13'
+    implementation 'org.jline:jline:3.22.0'
 }
 
 jar {

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -1,7 +1,7 @@
-#!/usr/bin/env sh
+#!/bin/sh
 
 #
-# Copyright 2015 the original author or authors.
+# Copyright © 2015-2021 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,67 +17,101 @@
 #
 
 ##############################################################################
-##
+#
-##  Gradle start up script for UN*X
+#   Gradle start up script for POSIX generated by Gradle.
-##
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
 ##############################################################################
 
 # Attempt to set APP_HOME
+
 # Resolve links: $0 may be a link
-PRG="$0"
+app_path=$0
-# Need this for relative symlinks.
+
-while [ -h "$PRG" ] ; do
+# Need this for daisy-chained symlinks.
-    ls=`ls -ld "$PRG"`
+while
-    link=`expr "$ls" : '.*-> \(.*\)$'`
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
-    if expr "$link" : '/.*' > /dev/null; then
+    [ -h "$app_path" ]
-        PRG="$link"
+do
-    else
+    ls=$( ls -ld "$app_path" )
-        PRG=`dirname "$PRG"`"/$link"
+    link=${ls#*' -> '}
-    fi
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
 done
-SAVED="`pwd`"
+
-cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-APP_HOME="`pwd -P`"
-cd "$SAVED" >/dev/null
 
 APP_NAME="Gradle"
-APP_BASE_NAME=`basename "$0"`
+APP_BASE_NAME=${0##*/}
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
+MAX_FD=maximum
 
 warn () {
     echo "$*"
-}
+} >&2
 
 die () {
     echo
     echo "$*"
     echo
     exit 1
-}
+} >&2
 
 # OS specific support (must be 'true' or 'false').
 cygwin=false
 msys=false
 darwin=false
 nonstop=false
-case "`uname`" in
+case "$( uname )" in                #(
-  CYGWIN* )
+  CYGWIN* )         cygwin=true  ;; #(
-    cygwin=true
+  Darwin* )         darwin=true  ;; #(
-    ;;
+  MSYS* | MINGW* )  msys=true    ;; #(
-  Darwin* )
+  NONSTOP* )        nonstop=true ;;
-    darwin=true
-    ;;
-  MINGW* )
-    msys=true
-    ;;
-  NONSTOP* )
-    nonstop=true
-    ;;
 esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
@@ -87,9 +121,9 @@ CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
         # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD="$JAVA_HOME/jre/sh/java"
+        JAVACMD=$JAVA_HOME/jre/sh/java
     else
-        JAVACMD="$JAVA_HOME/bin/java"
+        JAVACMD=$JAVA_HOME/bin/java
     fi
     if [ ! -x "$JAVACMD" ] ; then
         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
@@ -98,7 +132,7 @@ Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
     fi
 else
-    JAVACMD="java"
+    JAVACMD=java
     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
@@ -106,80 +140,95 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
-    MAX_FD_LIMIT=`ulimit -H -n`
+    case $MAX_FD in #(
-    if [ $? -eq 0 ] ; then
+      max*)
-        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+        MAX_FD=$( ulimit -H -n ) ||
-            MAX_FD="$MAX_FD_LIMIT"
+            warn "Could not query maximum file descriptor limit"
-        fi
+    esac
-        ulimit -n $MAX_FD
+    case $MAX_FD in  #(
-        if [ $? -ne 0 ] ; then
+      '' | soft) :;; #(
-            warn "Could not set maximum file descriptor limit: $MAX_FD"
+      *)
-        fi
+        ulimit -n "$MAX_FD" ||
-    else
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
-        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-    fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
-    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
-    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
-    
-    JAVACMD=`cygpath --unix "$JAVACMD"`
-
-    # We build the pattern for arguments to be converted via cygpath
-    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
-    SEP=""
-    for dir in $ROOTDIRSRAW ; do
-        ROOTDIRS="$ROOTDIRS$SEP$dir"
-        SEP="|"
-    done
-    OURCYGPATTERN="(^($ROOTDIRS))"
-    # Add a user-defined pattern to the cygpath arguments
-    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
-        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-    fi
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    i=0
-    for arg in "$@" ; do
-        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
-        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
-
-        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
-            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
-        else
-            eval `echo args$i`="\"$arg\""
-        fi
-        i=`expr $i + 1`
-    done
-    case $i in
-        0) set -- ;;
-        1) set -- "$args0" ;;
-        2) set -- "$args0" "$args1" ;;
-        3) set -- "$args0" "$args1" "$args2" ;;
-        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
     esac
 fi
 
-# Escape application args
+# Collect all arguments for the java command, stacking in reverse order:
-save () {
+#   * args from the command line
-    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+#   * the main class name
-    echo " "
+#   * -classpath
-}
+#   * -D...appname settings
-APP_ARGS=`save "$@"`
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
 
-# Collect all arguments for the java command, following the shell quoting and substitution rules
+# For Cygwin or MSYS, switch paths to Windows format before running java
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
 
 exec "$JAVACMD" "$@"

gradlew.bat

@@ -40,7 +40,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if "%ERRORLEVEL%" == "0" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -54,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -64,21 +64,6 @@ echo location of your Java installation.
 
 goto fail
 
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
 :execute
 @rem Setup the command line
 
@@ -86,7 +71,7 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 
 :end
 @rem End local scope for the variables with windows NT shell

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

@@ -1,35 +1,63 @@
 package me.creepermaxcz.mcbots;
 
-import com.github.steveice10.mc.protocol.MinecraftProtocol;
+import org.geysermc.mcprotocollib.auth.GameProfile;
-import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundLoginPacket;
+import org.geysermc.mcprotocollib.auth.SessionService;
-import com.github.steveice10.mc.protocol.packet.ingame.serverbound.ServerboundChatPacket;
+import org.geysermc.mcprotocollib.network.ClientSession;
-import com.github.steveice10.packetlib.ProxyInfo;
+import org.geysermc.mcprotocollib.network.ProxyInfo;
-import com.github.steveice10.packetlib.Session;
+import org.geysermc.mcprotocollib.network.Session;
-import com.github.steveice10.packetlib.event.session.DisconnectedEvent;
+import org.geysermc.mcprotocollib.network.event.session.DisconnectedEvent;
-import com.github.steveice10.packetlib.event.session.SessionAdapter;
+import org.geysermc.mcprotocollib.network.event.session.SessionAdapter;
-import com.github.steveice10.packetlib.packet.Packet;
+import org.geysermc.mcprotocollib.network.factory.ClientNetworkSessionFactory;
-import com.github.steveice10.packetlib.tcp.TcpClientSession;
+import org.geysermc.mcprotocollib.network.packet.Packet;
+import org.geysermc.mcprotocollib.network.session.ClientNetworkSession;
+import org.geysermc.mcprotocollib.protocol.MinecraftConstants;
+import org.geysermc.mcprotocollib.protocol.MinecraftProtocol;
+import org.geysermc.mcprotocollib.protocol.data.UnexpectedEncryptionException;
+import org.geysermc.mcprotocollib.protocol.data.game.ClientCommand;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.ClientboundLoginPacket;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.player.ClientboundPlayerCombatKillPacket;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.entity.player.ClientboundPlayerPositionPacket;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.ServerboundChatCommandPacket;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.ServerboundChatPacket;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.ServerboundClientCommandPacket;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.level.ServerboundAcceptTeleportationPacket;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.serverbound.player.*;
 
 import java.net.InetSocketAddress;
+import java.time.Instant;
+import java.util.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 public class Bot extends Thread {
 
-    MinecraftProtocol protocol = null;
-
     private String nickname;
     private ProxyInfo proxy;
     private InetSocketAddress address;
-    private Session client;
+    private ClientSession client;
     private boolean hasMainListener;
 
-    public Bot(String nickname, InetSocketAddress address, ProxyInfo proxy) {
+    private double lastX, lastY, lastZ = -1;
-        this.nickname = nickname;
+
+    private boolean connected;
+
+    private boolean manualDisconnecting = false;
+
+    public Bot(MinecraftProtocol protocol, InetSocketAddress address, ProxyInfo proxy) {
+        this.nickname = protocol.getProfile().getName();
         this.address = address;
         this.proxy = proxy;
 
         Log.info("Creating bot", nickname);
-        protocol = new MinecraftProtocol(nickname);
+
-        client = new TcpClientSession(address.getHostString(), address.getPort(), protocol, proxy);
+        client = ClientNetworkSessionFactory.factory()
+                .setAddress(address.getHostString(), address.getPort())
+                .setProtocol(protocol)
+                .setProxy(proxy)
+                .create();
+
+        SessionService sessionService = new SessionService();
+        client.setFlag(MinecraftConstants.SESSION_SERVICE_KEY, sessionService);
     }
 
     @Override
@@ -41,23 +69,77 @@ public class Bot extends Thread {
                 @Override
                 public void packetReceived(Session session, Packet packet) {
                     if (packet instanceof ClientboundLoginPacket) {
+                        connected = true;
                         Log.info(nickname + " connected");
-                        if (Main.joinMessage != null) {
+
-                            sendChat(Main.joinMessage);
+                        if (Main.joinMessages.size() > 0) {
+                            for (String msg : Main.joinMessages) {
+                                sendChat(msg);
+
+                                try {
+                                    Thread.sleep(100);
+                                } catch (InterruptedException ignored) {
+                                }
+                            }
+                        }
+                    }
+                    else if (packet instanceof ClientboundPlayerPositionPacket) {
+                        ClientboundPlayerPositionPacket p = (ClientboundPlayerPositionPacket) packet;
+
+                        lastX = p.getPosition().getX();
+                        lastY = p.getPosition().getY();
+                        lastZ = p.getPosition().getZ();
+
+                        client.send(new ServerboundAcceptTeleportationPacket(p.getId()));
+                    }
+                    else if (packet instanceof ClientboundPlayerCombatKillPacket){
+                        if (Main.autoRespawnDelay >= 0) {
+                            Log.info("Bot " + nickname + " died. Respawning in " + Main.autoRespawnDelay + " ms.");
+                            new Timer().schedule(
+                                    new TimerTask() {
+                                        @Override
+                                        public void run() {
+                                            client.send(new ServerboundClientCommandPacket(ClientCommand.RESPAWN));
+                                        }
+                                    },
+                                    Main.autoRespawnDelay
+                            );
+
                         }
                     }
                 }
 
                 @Override
                 public void disconnected(DisconnectedEvent event) {
-                    Log.info();
+                    connected = false;
                     Log.info(nickname + " disconnected");
-                    Log.info(" -> " + event.getReason());
+
+                    // Do not write disconnect reason if disconnected by command
+                    if (!manualDisconnecting) {
+                        // Fix broken reason string by finding the content with regex
+                        Pattern pattern = Pattern.compile("content=\"(.*?)\"");
+                        Matcher matcher = pattern.matcher(String.valueOf(event.getReason()));
+
+                        StringBuilder reason = new StringBuilder();
+                        while (matcher.find()) {
+                            reason.append(matcher.group(1));
+                        }
+
+                        Log.info(" -> " + reason.toString());
+
                         if(event.getCause() != null) {
                             event.getCause().printStackTrace();
+
+                            if (event.getCause() instanceof UnexpectedEncryptionException) {
+                                Log.warn("Server is running in online (premium) mode. Please use the -o option to use online mode bot.");
+                                System.exit(1);
+                            }
                         }
                         Log.info();
+                    }
+
                     Main.removeBot(Bot.this);
+
                     Thread.currentThread().interrupt();
                 }
             });
@@ -66,9 +148,28 @@ public class Bot extends Thread {
     }
 
     public void sendChat(String text) {
-        client.send(new ServerboundChatPacket(text));
+        // Send command
-    }
+        if (text.startsWith("/")) {
+            client.send(new ServerboundChatCommandPacket(
+                    text.substring(1)
+            ));
+        } else {
+            // Send chat message
+            // From 1.19.1 or 1.19, the ServerboundChatPacket needs timestamp, salt and signed signature to generate packet.
+            // tmpSignature will provide an empty byte array that can pretend it as signature.
+            // salt is set 0 since this is offline server and no body will check it.
 
+            client.send(new ServerboundChatPacket(
+                    text,
+                    Instant.now().toEpochMilli(),
+                    0L,
+                    null,
+                    0,
+                    new BitSet(),
+                    0
+            ));
+        }
+    }
 
     public String getNickname() {
         return nickname;
@@ -83,4 +184,34 @@ public class Bot extends Thread {
     public boolean hasMainListener() {
         return hasMainListener;
     }
+
+    public void fallDown()
+    {
+        if (connected && lastY > 0) {
+            move(0, -0.5, 0);
+        }
+    }
+
+    public void move(double x, double y, double z)
+    {
+        lastX += x;
+        lastY += y;
+        lastZ += z;
+        moveTo(lastX, lastY, lastZ);
+    }
+
+    public void moveTo(double x, double y, double z)
+    {
+        client.send(new ServerboundMovePlayerPosPacket(true, false, x, y, z));
+    }
+
+    public boolean isConnected() {
+        return connected;
+    }
+
+    public void disconnect()
+    {
+        manualDisconnecting = true;
+        client.disconnect("Leaving");
+    }
 }

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

@@ -9,6 +9,7 @@ public class Log {
 
     public static void log(String in) {
         System.out.println("\r[" + formatter.format(new Date()) + "] " + in);
+        System.out.print(Main.getPrompt() + "> ");
     }
 
     public static void error(String in) {

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

@@ -1,7 +1,19 @@
 package me.creepermaxcz.mcbots;
 
-import com.github.steveice10.packetlib.ProxyInfo;
+import net.lenni0451.commons.httpclient.HttpClient;
+import net.raphimc.minecraftauth.MinecraftAuth;
+import net.raphimc.minecraftauth.step.java.session.StepFullJavaSession;
+import net.raphimc.minecraftauth.step.msa.StepMsaDeviceCode;
+import org.geysermc.mcprotocollib.auth.GameProfile;
+import org.geysermc.mcprotocollib.network.ProxyInfo;
+import org.geysermc.mcprotocollib.protocol.MinecraftProtocol;
+import org.geysermc.mcprotocollib.protocol.data.status.ServerStatusInfo;
 import org.apache.commons.cli.*;
+import org.jline.reader.LineReader;
+import org.jline.reader.LineReaderBuilder;
+import org.jline.reader.UserInterruptException;
+import org.jline.terminal.Terminal;
+import org.jline.terminal.TerminalBuilder;
 import org.xbill.DNS.Lookup;
 import org.xbill.DNS.Record;
 import org.xbill.DNS.SRVRecord;
@@ -10,8 +22,8 @@ import org.xbill.DNS.Type;
 import java.io.*;
 import java.net.*;
 import java.security.SecureRandom;
-import java.util.ArrayList;
+import java.util.*;
-import java.util.Scanner;
+import java.util.stream.Collectors;
 
 
 public class Main {
@@ -26,7 +38,11 @@ public class Main {
     private static int delayMax = 5000;
     private static boolean minimal = false;
     private static boolean mostMinimal = false;
-    public static String joinMessage;
+    public static ArrayList<String> joinMessages = new ArrayList<>();
+
+    public static String prompt = "?";
+
+    public static int autoRespawnDelay = 100;
 
     private static boolean useProxies = false;
     private static final ArrayList<InetSocketAddress> proxies = new ArrayList<>();
@@ -34,6 +50,11 @@ public class Main {
     private static int proxyCount = 0;
     private static ProxyInfo.Type proxyType;
 
+    private static final String CLIENT_ID = "8bef943e-5a63-429e-a93a-96391d2e32a9";
+
+    private static Timer timer = new Timer();
+    private static final HashSet<Bot> controlledBots = new HashSet<>();
+
     public static void main(String[] args) throws Exception {
 
         Options options = new Options();
@@ -53,12 +74,18 @@ public class Main {
         options.addOption("p", "prefix", true, "bot nick prefix");
         options.addOption("m", "minimal", false, "minimal run without any listeners");
         options.addOption("x", "most-minimal", false, "minimal run without any control, just connect the bots");
-        options.addOption("j", "join-msg", true, "join message / command");
+        options.addOption("j", "join-msg", true, "join messages / commands, separated by &&");
 
         options.addOption("l", "proxy-list", true, "Path or URL to proxy list file with proxy:port on every line");
         options.addOption("t", "proxy-type", true, "Proxy type: SOCKS4 or SOCKS5");
 
-        options.addOption("nicks", true, "Path to nicks file with nick on every line");
+        options.addOption(null, "nicks", true, "Path to nicks file with nick on every line");
+
+        options.addOption("g", "gravity", false, "Try to simulate gravity by falling down");
+
+        options.addOption("o", "online", false, "Use online mode (premium) account");
+
+        options.addOption("ar", "auto-respawn", true, "Set autorespawn delay (-1 to disable)");
 
         CommandLineParser parser = new DefaultParser();
         CommandLine cmd = null;
@@ -71,6 +98,8 @@ public class Main {
             System.exit(1);
         }
 
+        autoRespawnDelay = Integer.parseInt(cmd.getOptionValue("ar", "100"));
+
         if (cmd.hasOption('t') && cmd.hasOption('l')) {
             String typeStr = cmd.getOptionValue('t').toUpperCase();
 
@@ -78,7 +107,7 @@ public class Main {
             try {
                 proxyType = ProxyInfo.Type.valueOf(typeStr);
             } catch (IllegalArgumentException e) {
-                Log.error("Inavlid proxy type, use SOCKS4 or SOCKS5.");
+                Log.error("Invalid proxy type, use SOCKS4 or SOCKS5.");
                 System.exit(1);
             }
 
@@ -166,7 +195,14 @@ public class Main {
         String address = cmd.getOptionValue('s');
         coloredChat = !cmd.hasOption('n');
 
-        joinMessage = cmd.getOptionValue('j');
+        if (cmd.hasOption('j')) {
+            // Split messages by &&, trim and append to arraylist
+            String[] messages = cmd.getOptionValue('j').split("&&");
+            for (String msg : messages) {
+                joinMessages.add(msg.trim());
+            }
+        }
+
 
         int port = 25565;
         if (address.contains(":")) {
@@ -191,6 +227,12 @@ public class Main {
         if (cmd.hasOption("nicks")) {
             Log.info("Loading nicknames from specified file");
             int nicksCount = nickGen.loadFromFile(cmd.getOptionValue("nicks"));
+
+            if (nicksCount == 0) {
+                Log.error("No valid nicknames loaded");
+                System.exit(1);
+            }
+
             if (nicksCount < botCount) {
                 Log.warn("Nickname count is lower than bot count!");
                 Thread.sleep(3000);
@@ -206,9 +248,50 @@ public class Main {
             port
         );
 
+        //print info
         Log.info("IP:", inetAddr.getHostString());
         Log.info("Port: " + inetAddr.getPort());
-        Log.info("Count: " + botCount);
+        Log.info("Bot count: " + botCount);
+
+        //get and print server info
+        ServerInfo serverInfo = new ServerInfo(inetAddr);
+        serverInfo.requestInfo();
+        ServerStatusInfo statusInfo = serverInfo.getStatusInfo();
+        if (statusInfo != null) {
+            Log.info(
+                    "Server version: "
+                            + statusInfo.getVersionInfo().getVersionName()
+                            + " (" + statusInfo.getVersionInfo().getProtocolVersion()
+                            + ")"
+            );
+            Log.info("Player Count: " + statusInfo.getPlayerInfo().getOnlinePlayers()
+                    + " / " + statusInfo.getPlayerInfo().getMaxPlayers());
+            Log.info();
+        } else {
+            Log.warn("There was an error retrieving server status information. The server may be offline or running on a different version.");
+        }
+
+        MinecraftProtocol protocol;
+        if (cmd.hasOption("o")) {
+            Log.warn("Online mode enabled. The bot count will be set to 1.");
+            botCount = 1;
+
+            HttpClient httpClient = MinecraftAuth.createHttpClient();
+            StepFullJavaSession.FullJavaSession javaSession =
+                    MinecraftAuth.JAVA_DEVICE_CODE_LOGIN.getFromInput(
+                            httpClient, new StepMsaDeviceCode.MsaDeviceCodeCallback(
+                                    msaDeviceCode -> {
+                Log.info("Authorize your Microsoft account on " + msaDeviceCode.getDirectVerificationUri());
+                Log.info("Waiting for authorization.");
+            }));
+
+            Log.info("Logged in with username: " + javaSession.getMcProfile().getName());
+
+            GameProfile gameProfile = new GameProfile(javaSession.getMcProfile().getId(), javaSession.getMcProfile().getName());
+            protocol = new MinecraftProtocol(gameProfile, javaSession.getMcProfile().getMcToken().getAccessToken());
+        } else {
+            protocol = null;
+        }
 
         new Thread(() -> {
             for (int i = 0; i < botCount; i++) {
@@ -238,11 +321,21 @@ public class Main {
 
                     }
 
-                    Bot bot = new Bot(
+                    Bot bot = null;
-                            nickGen.nextNick(),
+                    if (protocol != null) {
+                        bot = new Bot(
+                                protocol,
                                 inetAddr,
                                 proxyInfo
                         );
+                    } else {
+                        bot = new Bot(
+                                new MinecraftProtocol(nickGen.nextNick()),
+                                inetAddr,
+                                proxyInfo
+                        );
+                    }
+
                     bot.start();
 
                     if (!mostMinimal) bots.add(bot);
@@ -267,16 +360,141 @@ public class Main {
             }
         }).start();
 
+        //gravity timer
+        if (cmd.hasOption("g")) {
+            timer.scheduleAtFixedRate(new TimerTask() {
+                @Override
+                public void run() {
+                    bots.forEach(Bot::fallDown);
+                }
+            }, 1000L, 500L);
+        }
 
-        Scanner scanner = new Scanner(System.in);
+        Terminal terminal = TerminalBuilder.builder().build();
+        LineReader lineReader = LineReaderBuilder.builder()
+                .terminal(terminal)
+                .parser(new org.jline.reader.impl.DefaultParser())
+                .build();
 
-        while (scanner.hasNextLine()) {
+        prompt = "ALL";
-            String line = scanner.nextLine();
-            if (line.isEmpty()) continue;
 
+        while (true) {
+            String line;
+            try {
+                line = lineReader.readLine();
+            } catch (UserInterruptException e) {
+                System.exit(0);
+                break;
+            }
+            if (line.isEmpty()) {
+                System.out.print(getPrompt() + "> ");
+                continue;
+            }
+
+            if (line.startsWith("!") || line.startsWith(".")) {
+                String command = line.substring(1);
+                String[] split = command.split(" ");
+                String commandName = split[0];
+
+                // Bot control selection
+                if (
+                        commandName.equalsIgnoreCase("control") || commandName.equalsIgnoreCase("ctrl")
+                ) {
+                    if (split.length >= 2) {
+
+                        controlledBots.clear();
+                        int newBotCount = 0;
+
+                        // Search for all bot names, from index 1 - skip command name
+                        for (int i = 1; i < split.length; i++) {
+                            String searchedName = split[i];
+                            Bot bot = findBotByName(searchedName);
+
+                            if (bot != null) {
+                                controlledBots.add(bot);
+                                newBotCount++;
+                            } else {
+                                Log.warn("Bot not found: " + searchedName);
+                            }
+                        }
+
+
+                        if (newBotCount > 0) {
+                            // Join bot nicknames
+                            String botNames = controlledBots
+                                    .stream()
+                                    .map(Bot::getNickname)
+                                    .collect(Collectors.joining(", "));
+
+                            if (newBotCount == 1) {
+                                Log.info("Now controlling 1 bot: " + botNames);
+                            } else {
+                                Log.info("Now controlling " + newBotCount + " bots: " + botNames);
+                            }
+
+                        } else {
+                            Log.warn("No bots found.");
+                        }
+
+
+                    } else {
+                        // If no bot names are supplied, remove all bots
+                        controlledBots.clear();
+                        Log.info("No bots selected - now controlling all bots.");
+                    }
+                }
+
+
+                // List command
+                else if (commandName.equalsIgnoreCase("list") || commandName.equalsIgnoreCase("ls")) {
+                    Log.info("There are " + bots.size() + " bots connected:");
+                    for (Bot bot : bots) {
+                        Log.info(bot.getNickname(), bot.hasMainListener() ? "[MainListener]" : "");
+                    }
+                } else if (commandName.equalsIgnoreCase("leave") || commandName.equalsIgnoreCase("exit")) {
+                    int limit = -1;
+                    if (split.length >= 2) {
+                        try {
+                            limit = Integer.parseInt(split[1]);
+                        } catch (NumberFormatException e) {
+                            limit = 0;
+                            Log.warn("Invalid limit.");
+                        }
+                    }
+
+                    int i = 0;
+                    if (!controlledBots.isEmpty()) {
+                        Log.info("Disconnecting controlled bots.");
+                        for (Bot bot : controlledBots) {
+                            if (i++ == limit) {
+                                break;
+                            }
+
+                            bot.disconnect();
+                        }
+                    } else {
+                        Log.info("Disconnecting all bots.");
+                        for (Bot bot : bots) {
+                            if (i++ == limit) {
+                                break;
+                            }
+
+                            bot.disconnect();
+                        }
+                    }
+                } else {
+                    Log.warn("Invalid command");
+                }
+            } else if (controlledBots.size() > 0) {
+                controlledBots.forEach(bot -> bot.sendChat(line));
+            } else {
                 bots.forEach(bot -> bot.sendChat(line));
+            }
 
             Thread.sleep(50);
+
+            //System.out.print("\r"  +prompt + "> ");
+
         }
     }
 
@@ -286,6 +504,7 @@ public class Main {
 
     public static synchronized void removeBot(Bot bot) {
         bots.remove(bot);
+        controlledBots.remove(bot);
         if (bot.hasMainListener()) {
             Log.info("Bot with MainListener removed");
             isMainListenerMissing = true;
@@ -312,4 +531,30 @@ public class Main {
     public static boolean isMinimal() {
         return minimal;
     }
+
+    public static Bot findBotByName(String text) {
+        for (Bot bot : bots) {
+            // Starts with and ignore case
+            // https://stackoverflow.com/a/38947571/11787611
+            if (bot.getNickname().regionMatches(true, 0, text, 0, text.length())) {
+                return bot;
+            }
+        }
+        return null;
+    }
+
+    public static String getPrompt()
+    {
+        int count = controlledBots.size();
+        if (count == 0) {
+            return "ALL";
+        } else if (count == 1)
+        {
+            //If controlling only one bot, return its nickname
+            return controlledBots.iterator().next().getNickname();
+        }
+        else {
+            return count + " BOTS";
+        }
+    }
 }

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

@@ -1,9 +1,10 @@
 package me.creepermaxcz.mcbots;
 
-import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundChatPacket;
+import org.geysermc.mcprotocollib.network.Session;
-import com.github.steveice10.packetlib.Session;
+import org.geysermc.mcprotocollib.network.event.session.*;
-import com.github.steveice10.packetlib.event.session.*;
+import org.geysermc.mcprotocollib.network.packet.Packet;
-import com.github.steveice10.packetlib.packet.Packet;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.ClientboundPlayerChatPacket;
+import org.geysermc.mcprotocollib.protocol.packet.ingame.clientbound.ClientboundSystemChatPacket;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.TextComponent;
 import net.kyori.adventure.text.TranslatableComponent;
@@ -16,19 +17,42 @@ public class MainListener implements SessionListener {
 
     @Override
     public void packetReceived(Session session, Packet packet) {
-        if(packet instanceof ClientboundChatPacket) {
+        // From 1.19.1 (as well as 1.19), the class ClientboundChatPacket was removed.
-            Component message = ((ClientboundChatPacket) packet).getMessage();
+        // Instead, they use ClientboundPlayerChatPacket and ClientboundSystemChatPacket for taking care of chat packets.
-            //Log.chat(message.toString());
+        Component message = null;
-            if (message instanceof TextComponent) {
+        Component sender;
+        boolean chatPrintedOut = false;
+
+        if (packet instanceof ClientboundPlayerChatPacket) {
+            ClientboundPlayerChatPacket clientboundPlayerChatPacket = ((ClientboundPlayerChatPacket) packet);
+            message = clientboundPlayerChatPacket.getUnsignedContent();
+            sender = clientboundPlayerChatPacket.getName();
+
+            // Sometimes the message's body gets null.
+            // For example, some commands like /say makes the message content as null.
+            // However, the message exists as in getMessagePlain(), thus can retrieve message using the method.
+            if (message == null) {
+                Log.chat(Utils.getFullText((TextComponent) sender, Component.text(clientboundPlayerChatPacket.getContent()), Main.coloredChat));
+            } else {
+                Log.chat(Utils.getFullText((TextComponent) sender, (TextComponent) message, Main.coloredChat));
+            }
+            chatPrintedOut = true;
+
+        } else if (packet instanceof ClientboundSystemChatPacket) { // When this was SystemChat packet.
+            message = ((ClientboundSystemChatPacket) packet).getContent();
+        }
+
+        // For output of commands, this is the case where this program prints out the message to user.
+        if (message instanceof TextComponent && !chatPrintedOut) {
             TextComponent msg = (TextComponent) message;
             Log.chat(Utils.getFullText(msg, Main.coloredChat));
         }
+
         if (message instanceof TranslatableComponent) {
             TranslatableComponent msg = (TranslatableComponent) message;
             Log.chat("[T]", Utils.translate(msg));
         }
     }
-    }
 
     @Override
     public void packetSending(PacketSendingEvent event) {

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

@@ -0,0 +1,72 @@
+package me.creepermaxcz.mcbots;
+
+
+import org.geysermc.mcprotocollib.network.ClientSession;
+import org.geysermc.mcprotocollib.network.Session;
+import org.geysermc.mcprotocollib.network.event.session.DisconnectedEvent;
+import org.geysermc.mcprotocollib.network.event.session.SessionAdapter;
+import org.geysermc.mcprotocollib.network.factory.ClientNetworkSessionFactory;
+import org.geysermc.mcprotocollib.protocol.MinecraftConstants;
+import org.geysermc.mcprotocollib.protocol.MinecraftProtocol;
+import org.geysermc.mcprotocollib.protocol.data.status.ServerStatusInfo;
+import org.geysermc.mcprotocollib.protocol.data.status.handler.ServerInfoHandler;
+import org.geysermc.mcprotocollib.protocol.data.status.handler.ServerPingTimeHandler;
+
+
+import java.net.InetSocketAddress;
+
+public class ServerInfo {
+
+    private final ClientSession client;
+    private ServerStatusInfo serverStatusInfo;
+    private long ping;
+    private boolean done;
+
+    public ServerInfo(InetSocketAddress address) {
+
+        MinecraftProtocol protocol = new MinecraftProtocol();
+
+        client = ClientNetworkSessionFactory.factory()
+                .setAddress(address.getHostString(), address.getPort())
+                .setProtocol(protocol)
+                .create();
+
+        client.setFlag(MinecraftConstants.SERVER_INFO_HANDLER_KEY, (ServerInfoHandler) (session, info) -> {
+            this.serverStatusInfo = info;
+        });
+
+        client.setFlag(MinecraftConstants.SERVER_PING_TIME_HANDLER_KEY, (ServerPingTimeHandler) (session, pingTime) -> {
+            this.ping = pingTime;
+        });
+
+        client.addListener(new SessionAdapter() {
+            @Override
+            public void disconnected(DisconnectedEvent event) {
+                done = true;
+            }
+        });
+    }
+
+    public void requestInfo()
+    {
+        client.connect();
+
+        //wait to disconnect
+        while (!done) {
+            try {
+                Thread.sleep(5);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    public ServerStatusInfo getStatusInfo()
+    {
+        return serverStatusInfo;
+    }
+
+    public long getPing() {
+        return ping;
+    }
+}

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

@@ -7,8 +7,11 @@ import com.google.gson.JsonParser;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.TextComponent;
 import net.kyori.adventure.text.TranslatableComponent;
-import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.TranslationArgument;
+import net.kyori.adventure.text.format.Style;
+import net.kyori.adventure.text.format.TextColor;
 import net.kyori.adventure.text.format.TextDecoration;
+import org.jetbrains.annotations.Nullable;
 
 import java.io.InputStream;
 import java.io.InputStreamReader;
@@ -26,66 +29,77 @@ public class Utils {
     public static String getFullText(TextComponent message, boolean colored) {
         if (message.children().size() > 0) {
             StringBuilder text = new StringBuilder();
+            text.append(parseColor(message, colored));
             for (Component child : message.children()) {
+                if (child instanceof TextComponent) {
                     text.append(getFullText((TextComponent) child, colored));
+                } else if (child instanceof TranslatableComponent) {
+                    text.append(translate((TranslatableComponent) child));
+                }
+
             }
             return text.toString();
         } else {
+            return parseColor(message, colored);
+        }
+    }
+
+    /**
+     * A static function that gets full text from text components.
+     * From 1.19.1 the protocol does not include sender's information in the message.
+     * Thus, we need to merge two TextComponent (sender and message) and generate a text that consists of sent message.
+     * This means using old getFullText will just send the message. Which does NOT contain username who sent this message
+     *
+     * @param sender  The TextComponent for sender.
+     * @param message The TextComponent for message.
+     * @param colored Whether if this output was colored or not.
+     * @return Returns String in "Username : Message" format.
+     */
+    public static String getFullText(@Nullable TextComponent sender, TextComponent message, boolean colored) {
+        if (colored) {
+            Style messageStyle = message.style();
+            StringBuilder outString = new StringBuilder();
+
+            if (sender != null) {
+                Style senderStyle = sender.style();
+                if (senderStyle.color() != null) { // Generate sender text with color.
+                    outString.append(colorizeText(sender.content(), senderStyle.color()));
+                } else {
+                    outString.append(sender.content());
+                }
+                outString.append(" : "); // Add delimiter as : between sender and message.
+            }
+
+            if (messageStyle.color() != null && sender != null) { // Generate message text with color.
+                outString.append(colorizeText(sender.content(), messageStyle.color()));
+            } else {
+                outString.append(message.content());
+            }
+
+            return outString.toString();
+        } else {
+            if (sender == null)
+                return message.content();
+            else
+                return sender.content() + " : " + message.content();
+        }
+    }
+
+    private static String parseColor(TextComponent message, boolean colored) {
         String out = message.content();
         if (colored) {
             if (message.style().color() != null) {
                 List<Attribute> formats = new ArrayList<>(getFormats(message.style().decorations()));
-                    formats.add(getColor((NamedTextColor) message.style().color()));
+                TextColor color = message.style().color();
+                formats.add(Attribute.TEXT_COLOR(color.red(), color.green(), color.blue()));
                 out = colorize(out, formats.toArray(new Attribute[0]));
             }
         }
         return out;
     }
 
-    }
+    private static String colorizeText(String text, TextColor color) {
-
+        return colorize(text, Attribute.TEXT_COLOR(color.red(), color.green(), color.blue()));
-    public static Attribute getColor(NamedTextColor color) {
-        switch (color.toString()) {
-            case "red":
-                return Attribute.BRIGHT_RED_TEXT();
-            case "dark_red":
-                return Attribute.RED_TEXT();
-
-            case "blue":
-                return Attribute.BRIGHT_BLUE_TEXT();
-            case "dark_blue":
-                return Attribute.BLUE_TEXT();
-
-            case "white":
-                return Attribute.BRIGHT_WHITE_TEXT();
-            case "black":
-                return Attribute.BLACK_TEXT();
-            case "gray":
-                return Attribute.WHITE_TEXT();
-            case "dark_gray":
-                return Attribute.BRIGHT_BLACK_TEXT();
-
-            case "aqua":
-                return Attribute.BRIGHT_CYAN_TEXT();
-            case "dark_aqua":
-                return Attribute.CYAN_TEXT();
-
-            case "yellow":
-                return Attribute.BRIGHT_YELLOW_TEXT();
-            case "gold":
-                return Attribute.YELLOW_TEXT();
-
-            case "green":
-                return Attribute.BRIGHT_GREEN_TEXT();
-            case "dark_green":
-                return Attribute.GREEN_TEXT();
-
-            case "purple":
-                return Attribute.BRIGHT_MAGENTA_TEXT();
-            case "dark_purple":
-                return Attribute.MAGENTA_TEXT();
-        }
-        return Attribute.NONE();
     }
 
     public static List<Attribute> getFormats(Map<TextDecoration, TextDecoration.State> decorations) {
@@ -108,11 +122,14 @@ public class Utils {
         return list;
     }
 
-
     public static String translate(TranslatableComponent message) {
+        try {
             if (lang == null) {
                 try {
                     InputStream resource = Utils.class.getResourceAsStream("/files/lang.json");
+                    if (resource == null) {
+                        throw new Exception("Failed to load lang resource.");
+                    }
                     lang = new JsonParser().parse(new InputStreamReader(resource)).getAsJsonObject();
                 } catch (Exception e) {
                     Log.crit(e);
@@ -130,20 +147,28 @@ public class Utils {
 
             ArrayList<String> placeholders = new ArrayList<>();
 
-        if (message.args().size() > 0) {
+            if (message.arguments().size() > 0) {
-            for (Component component : message.args()) {
+                for (TranslationArgument arg : message.arguments()) {
+                    Component component = arg.asComponent();
                     if (component instanceof TranslatableComponent) {
                         placeholders.add(translate((TranslatableComponent) component));
-                }
+                    } else if (arg instanceof TextComponent) {
-                else if (component instanceof TextComponent) {
                         placeholders.add(getFullText((TextComponent) component, false));
                     }
                 }
                 //Log.info(Arrays.toString(placeholders.toArray()));
+                try {
                     return String.format(base, placeholders.toArray());
+                } catch (Exception e) {
+                    Log.error("Error formatting '"+base+"' with placeholders " + Arrays.toString(placeholders.toArray()));
+                }
             } else {
                 return base;
             }
+        } catch (Exception e) {
+            Log.error(e);
         }
 
+        return "";
+    }
 }