Improve console implementation

Rewrite console improvements (console colors, tab completion,
persistent input line, ...) using JLine 3.x and TerminalConsoleAppender.

New features:
  - Support console colors for Vanilla commands
  - Add console colors for warnings and errors
  - Server can now be turned off safely using CTRL + C. JLine catches
    the signal and the implementation shuts down the server cleanly.
  - Support console colors and persistent input line when running in
    IntelliJ IDEA

Other changes:
  - Update JLine to 3.3.1 (from 2.12.1)
  - Server starts 1-2 seconds faster thanks to optimizations in Log4j
    configuration

.gitignore

@@ -42,11 +42,13 @@ work/test-server
 *.ipr
 *.iws
 .idea/
+out/
 
 # Linux temp files
 *~
 
 # other stuff
+run/
 
 Paper-Server
 Paper-API

Spigot-Server-Patches/0211-Workaround-for-jansi-bug-with-Windows.patch

@@ -1,29 +0,0 @@
-From 6e358e579628685730d344c55695e30694525cc0 Mon Sep 17 00:00:00 2001
-From: Shane Freeder <theboyetronic@gmail.com>
-Date: Wed, 17 May 2017 17:45:19 -0500
-Subject: [PATCH] Workaround for jansi bug with Windows
-
-When jansi attempts to extract its natives, by default it tries to extract a specific version
-using the loading class's implementation version. Normally this works completely fine
-however when on Windows certain characters such as - and : can trigger special behaviour.
-
-Furthermore this behaviour only occurs in specific combinations due to the parsing done by jansi.
-For example test-test works fine, but test-test-test does not! In order to avoid this all together but
-still keep our versions the same as they were, we set the override property to the essentially garbage version
-Paper. This version is only used when extracting the libraries to their temp folder.
-
-diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
-index 1cbcc3dfa..98e27fa25 100644
---- a/src/main/java/org/bukkit/craftbukkit/Main.java
-+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
-@@ -182,6 +182,7 @@ public class Main {
-                 }
- 
-                 if (useJline) {
-+                    System.setProperty( "library.jansi.version", "Paper" ); // Paper - set jansi library version to avoid crash
-                     AnsiConsole.systemInstall();
-                 } else {
-                     // This ensures the terminal literal will always match the jline implementation
--- 
-2.13.0.windows.1
-

Spigot-Server-Patches/0212-Use-TerminalConsoleAppender-for-console-improvements.patch

@@ -0,0 +1,614 @@
+From 3d69c48006f75e45b053b2d626a1829f71d1a7d6 Mon Sep 17 00:00:00 2001
+From: Minecrell <dev@minecrell.net>
+Date: Fri, 9 Jun 2017 19:03:43 +0200
+Subject: [PATCH] Use TerminalConsoleAppender for console improvements
+
+Rewrite console improvements (console colors, tab completion,
+persistent input line, ...) using JLine 3.x and TerminalConsoleAppender.
+
+New features:
+  - Support console colors for Vanilla commands
+  - Add console colors for warnings and errors
+  - Server can now be turned off safely using CTRL + C. JLine catches
+    the signal and the implementation shuts down the server cleanly.
+  - Support console colors and persistent input line when running in
+    IntelliJ IDEA
+
+Other changes:
+  - Update JLine to 3.3.1 (from 2.12.1)
+  - Server starts 1-2 seconds faster thanks to optimizations in Log4j
+    configuration
+
+diff --git a/pom.xml b/pom.xml
+index b2aa10ff..0ae2c9c6 100644
+--- a/pom.xml
++++ b/pom.xml
+@@ -47,12 +47,6 @@
+             <scope>compile</scope>
+         </dependency>
+         <dependency>
+-            <groupId>jline</groupId>
+-            <artifactId>jline</artifactId>
+-            <version>2.12.1</version>
+-            <scope>compile</scope>
+-        </dependency>
+-        <dependency>
+             <groupId>org.xerial</groupId>
+             <artifactId>sqlite-jdbc</artifactId>
+             <version>3.18.0</version>
+@@ -69,6 +63,38 @@
+             <artifactId>trove4j</artifactId>
+             <version>3.0.3</version>
+         </dependency>
++
++        <dependency>
++            <groupId>net.minecrell</groupId>
++            <artifactId>terminalconsoleappender</artifactId>
++            <version>1.0.0-SNAPSHOT</version>
++        </dependency>
++        <dependency>
++            <groupId>org.jline</groupId>
++            <artifactId>jline-terminal-jna</artifactId>
++            <version>3.3.1</version>
++            <scope>runtime</scope>
++        </dependency>
++        <dependency>
++            <groupId>net.java.dev.jna</groupId>
++            <artifactId>jna</artifactId>
++            <version>4.4.0</version>
++            <scope>runtime</scope>
++        </dependency>
++
++        <!--
++          Required to add the missing Log4j2Plugins.dat file from log4j-core
++          which has been removed by Mojang. Without it, log4j has to classload
++          all its classes to check if they are plugins.
++          Scanning takes about 1-2 seconds so adding this speeds up the server start.
++        -->
++        <dependency>
++            <groupId>org.apache.logging.log4j</groupId>
++            <artifactId>log4j-core</artifactId>
++            <version>2.8.1</version>
++            <scope>runtime</scope>
++        </dependency>
++
+         <!-- testing -->
+         <dependency>
+             <groupId>junit</groupId>
+@@ -216,10 +242,18 @@
+                                 <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
+                                     <resource>META-INF/services/java.sql.Driver</resource>
+                                 </transformer>
++                                <transformer implementation="com.github.edwgiz.mavenShadePlugin.log4j2CacheTransformer.PluginsCacheFileTransformer" />
+                             </transformers>
+                         </configuration>
+                     </execution>
+                 </executions>
++                <dependencies>
++                    <dependency>
++                        <groupId>com.github.edwgiz</groupId>
++                        <artifactId>maven-shade-plugin.log4j2-cachefile-transformer</artifactId>
++                        <version>2.8.1</version>
++                    </dependency>
++                </dependencies>
+             </plugin>
+             <plugin>
+                 <groupId>org.apache.maven.plugins</groupId>
+diff --git a/src/main/java/com/destroystokyo/paper/console/TerminalConsoleCommandSender.java b/src/main/java/com/destroystokyo/paper/console/TerminalConsoleCommandSender.java
+new file mode 100644
+index 00000000..24f30efb
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/console/TerminalConsoleCommandSender.java
+@@ -0,0 +1,13 @@
++package com.destroystokyo.paper.console;
++
++import org.bukkit.craftbukkit.command.CraftConsoleCommandSender;
++
++public class TerminalConsoleCommandSender extends CraftConsoleCommandSender {
++
++    @Override
++    public void sendRawMessage(String message) {
++        // Print message with colors
++        System.out.println(message);
++    }
++
++}
+diff --git a/src/main/java/com/destroystokyo/paper/console/TerminalHandler.java b/src/main/java/com/destroystokyo/paper/console/TerminalHandler.java
+new file mode 100644
+index 00000000..dcd31fbc
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/console/TerminalHandler.java
+@@ -0,0 +1,53 @@
++package com.destroystokyo.paper.console;
++
++import net.minecraft.server.DedicatedServer;
++import net.minecrell.terminalconsole.TerminalConsoleAppender;
++import org.bukkit.craftbukkit.command.ConsoleCommandCompleter;
++import org.jline.reader.LineReader;
++import org.jline.reader.LineReaderBuilder;
++import org.jline.reader.UserInterruptException;
++import org.jline.terminal.Terminal;
++
++public class TerminalHandler {
++
++    private TerminalHandler() {
++    }
++
++    public static boolean handleCommands(DedicatedServer server) {
++        final Terminal terminal = TerminalConsoleAppender.getTerminal();
++        if (terminal == null) {
++            return false;
++        }
++
++        LineReader reader = LineReaderBuilder.builder()
++                .appName("Paper")
++                .terminal(terminal)
++                .completer(new ConsoleCommandCompleter(server))
++                .build();
++        reader.unsetOpt(LineReader.Option.INSERT_TAB);
++
++        TerminalConsoleAppender.setReader(reader);
++
++        try {
++            String line;
++            while (!server.isStopped() && server.isRunning()) {
++                line = reader.readLine("> ");
++                if (line == null) {
++                    break;
++                }
++
++                line = line.trim();
++                if (!line.isEmpty()) {
++                    server.issueCommand(line, server);
++                }
++            }
++        } catch (UserInterruptException e) {
++            server.safeShutdown();
++        } finally {
++            TerminalConsoleAppender.setReader(null);
++        }
++
++        return true;
++    }
++
++}
+diff --git a/src/main/java/net/minecraft/server/DedicatedServer.java b/src/main/java/net/minecraft/server/DedicatedServer.java
+index 2feeb855..db9ace0c 100644
+--- a/src/main/java/net/minecraft/server/DedicatedServer.java
++++ b/src/main/java/net/minecraft/server/DedicatedServer.java
+@@ -73,7 +73,10 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
+                 if (!org.bukkit.craftbukkit.Main.useConsole) {
+                     return;
+                 }
+-                jline.console.ConsoleReader bufferedreader = reader;
++                // Paper start - Use TerminalConsoleAppender implementation
++                if (com.destroystokyo.paper.console.TerminalHandler.handleCommands(DedicatedServer.this)) return;
++                BufferedReader bufferedreader = new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8));
++                // Paper end
+                 // CraftBukkit end
+ 
+                 String s;
+@@ -81,11 +84,17 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
+                 try {
+                     // CraftBukkit start - JLine disabling compatibility
+                     while (!isStopped() && isRunning()) {
++                        // Paper start - code is not used for jline
++                        /*
+                         if (org.bukkit.craftbukkit.Main.useJline) {
+                             s = bufferedreader.readLine(">", null);
+                         } else {
+                             s = bufferedreader.readLine();
+                         }
++                        */
++                        s = bufferedreader.readLine();
++                        // Paper end
++
+                         if (s != null && s.trim().length() > 0) { // Trim to filter lines which are just spaces
+                             issueCommand(s, DedicatedServer.this);
+                         }
+@@ -113,8 +122,6 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
+             }
+         }
+ 
+-        new Thread(new org.bukkit.craftbukkit.util.TerminalConsoleWriterThread(System.out, this.reader)).start();
+-
+         System.setOut(new PrintStream(new LoggerOutputStream(logger, Level.INFO), true));
+         System.setErr(new PrintStream(new LoggerOutputStream(logger, Level.WARN), true));
+         // CraftBukkit end
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index d84f59da..8ca8fdce 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
++++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -41,7 +41,6 @@ import org.apache.commons.lang3.Validate;
+ import org.apache.logging.log4j.LogManager;
+ import org.apache.logging.log4j.Logger;
+ // CraftBukkit start
+-import jline.console.ConsoleReader;
+ import joptsimple.OptionSet;
+ import org.bukkit.Bukkit;
+ import org.bukkit.craftbukkit.CraftServer;
+@@ -114,7 +113,7 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
+     public OptionSet options;
+     public org.bukkit.command.ConsoleCommandSender console;
+     public org.bukkit.command.RemoteConsoleCommandSender remoteConsole;
+-    public ConsoleReader reader;
++    //public ConsoleReader reader; // Paper
+     public static int currentTick = 0; // Paper - Further improve tick loop
+     public final Thread primaryThread;
+     public java.util.Queue<Runnable> processQueue = new java.util.concurrent.ConcurrentLinkedQueue<Runnable>();
+@@ -140,7 +139,9 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
+         this.dataConverterManager = dataconvertermanager;
+         // CraftBukkit start
+         this.options = options;
++        // Paper start - Handled by TerminalConsoleAppender
+         // Try to see if we're actually running in a terminal, disable jline if not
++        /*
+         if (System.console() == null && System.getProperty("jline.terminal") == null) {
+             System.setProperty("jline.terminal", "jline.UnsupportedTerminal");
+             Main.useJline = false;
+@@ -161,6 +162,8 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
+                 LOGGER.warn((String) null, ex);
+             }
+         }
++        */
++        // Paper end
+         Runtime.getRuntime().addShutdownHook(new org.bukkit.craftbukkit.util.ServerShutdownThread(this));
+ 
+         this.serverThread = primaryThread = new Thread(this, "Server thread"); // Moved from main
+@@ -700,7 +703,7 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
+             } finally {
+                 // CraftBukkit start - Restore terminal to original settings
+                 try {
+-                    reader.getTerminal().restore();
++                    net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Use TerminalConsoleAppender
+                 } catch (Exception ignored) {
+                 }
+                 // CraftBukkit end
+@@ -1226,7 +1229,8 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IAs
+     }
+ 
+     public void sendMessage(IChatBaseComponent ichatbasecomponent) {
+-        MinecraftServer.LOGGER.info(ichatbasecomponent.toPlainText());
++        // Paper - Log message with colors
++        MinecraftServer.LOGGER.info(org.bukkit.craftbukkit.util.CraftChatMessage.fromComponent(ichatbasecomponent, net.minecraft.server.EnumChatFormat.WHITE));
+     }
+ 
+     public boolean a(int i, String s) {
+diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
+index 0c328782..ed0a749e 100644
+--- a/src/main/java/net/minecraft/server/PlayerList.java
++++ b/src/main/java/net/minecraft/server/PlayerList.java
+@@ -76,8 +76,7 @@ public abstract class PlayerList {
+ 
+     public PlayerList(MinecraftServer minecraftserver) {
+         this.cserver = minecraftserver.server = new CraftServer(minecraftserver, this);
+-        minecraftserver.console = org.bukkit.craftbukkit.command.ColouredConsoleSender.getInstance();
+-        minecraftserver.reader.addCompleter(new org.bukkit.craftbukkit.command.ConsoleCommandCompleter(minecraftserver.server));
++        minecraftserver.console = new com.destroystokyo.paper.console.TerminalConsoleCommandSender(); // Paper
+         // CraftBukkit end
+ 
+         this.k = new GameProfileBanList(PlayerList.a);
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index 463f5890..df6a75b0 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -127,7 +127,6 @@ import io.netty.buffer.ByteBuf;
+ import io.netty.buffer.ByteBufOutputStream;
+ import io.netty.buffer.Unpooled;
+ import io.netty.handler.codec.base64.Base64;
+-import jline.console.ConsoleReader;
+ import org.apache.commons.lang.StringUtils;
+ import org.bukkit.NamespacedKey;
+ import org.bukkit.craftbukkit.util.CraftNamespacedKey;
+@@ -1088,9 +1087,13 @@ public final class CraftServer implements Server {
+         return logger;
+     }
+ 
++    // Paper start - JLine update
++    /*
+     public ConsoleReader getReader() {
+         return console.reader;
+     }
++    */
++    // Paper end
+ 
+     @Override
+     public PluginCommand getPluginCommand(String name) {
+diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
+index 1cbcc3df..c3b2413a 100644
+--- a/src/main/java/org/bukkit/craftbukkit/Main.java
++++ b/src/main/java/org/bukkit/craftbukkit/Main.java
+@@ -14,7 +14,7 @@ import java.util.logging.Logger;
+ import joptsimple.OptionParser;
+ import joptsimple.OptionSet;
+ import net.minecraft.server.MinecraftServer;
+-import org.fusesource.jansi.AnsiConsole;
++import net.minecrell.terminalconsole.TerminalConsoleAppender; // Paper
+ 
+ public class Main {
+     public static boolean useJline = true;
+@@ -170,6 +170,8 @@ public class Main {
+             }
+ 
+             try {
++                // Paper start - Handled by TerminalConsoleAppender
++                /*
+                 // This trick bypasses Maven Shade's clever rewriting of our getProperty call when using String literals
+                 String jline_UnsupportedTerminal = new String(new char[] {'j','l','i','n','e','.','U','n','s','u','p','p','o','r','t','e','d','T','e','r','m','i','n','a','l'});
+                 String jline_terminal = new String(new char[] {'j','l','i','n','e','.','t','e','r','m','i','n','a','l'});
+@@ -187,10 +189,18 @@ public class Main {
+                     // This ensures the terminal literal will always match the jline implementation
+                     System.setProperty(jline.TerminalFactory.JLINE_TERMINAL, jline.UnsupportedTerminal.class.getName());
+                 }
++                */
+ 
++                if (options.has("nojline")) {
++                    System.setProperty(TerminalConsoleAppender.JLINE_OVERRIDE_PROPERTY, "false");
++                    useJline = false;
++                }
++                // Paper end
+ 
+                 if (options.has("noconsole")) {
+                     useConsole = false;
++                    useJline = false; // Paper
++                    System.setProperty(TerminalConsoleAppender.JLINE_OVERRIDE_PROPERTY, "false"); // Paper
+                 }
+ 
+                 if (Main.class.getPackage().getImplementationVendor() != null && System.getProperty("IReallyKnowWhatIAmDoingISwear") == null) {
+diff --git a/src/main/java/org/bukkit/craftbukkit/command/ColouredConsoleSender.java b/src/main/java/org/bukkit/craftbukkit/command/ColouredConsoleSender.java
+deleted file mode 100644
+index 26a2fb89..00000000
+--- a/src/main/java/org/bukkit/craftbukkit/command/ColouredConsoleSender.java
++++ /dev/null
+@@ -1,74 +0,0 @@
+-package org.bukkit.craftbukkit.command;
+-
+-import java.util.EnumMap;
+-import java.util.Map;
+-
+-import org.fusesource.jansi.Ansi;
+-import org.fusesource.jansi.Ansi.Attribute;
+-import jline.Terminal;
+-
+-import org.bukkit.Bukkit;
+-import org.bukkit.ChatColor;
+-import org.bukkit.command.ConsoleCommandSender;
+-import org.bukkit.craftbukkit.CraftServer;
+-
+-public class ColouredConsoleSender extends CraftConsoleCommandSender {
+-    private final Terminal terminal;
+-    private final Map<ChatColor, String> replacements = new EnumMap<ChatColor, String>(ChatColor.class);
+-    private final ChatColor[] colors = ChatColor.values();
+-
+-    protected ColouredConsoleSender() {
+-        super();
+-        this.terminal = ((CraftServer) getServer()).getReader().getTerminal();
+-
+-        replacements.put(ChatColor.BLACK, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.BLACK).boldOff().toString());
+-        replacements.put(ChatColor.DARK_BLUE, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.BLUE).boldOff().toString());
+-        replacements.put(ChatColor.DARK_GREEN, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.GREEN).boldOff().toString());
+-        replacements.put(ChatColor.DARK_AQUA, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.CYAN).boldOff().toString());
+-        replacements.put(ChatColor.DARK_RED, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.RED).boldOff().toString());
+-        replacements.put(ChatColor.DARK_PURPLE, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.MAGENTA).boldOff().toString());
+-        replacements.put(ChatColor.GOLD, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.YELLOW).boldOff().toString());
+-        replacements.put(ChatColor.GRAY, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.WHITE).boldOff().toString());
+-        replacements.put(ChatColor.DARK_GRAY, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.BLACK).bold().toString());
+-        replacements.put(ChatColor.BLUE, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.BLUE).bold().toString());
+-        replacements.put(ChatColor.GREEN, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.GREEN).bold().toString());
+-        replacements.put(ChatColor.AQUA, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.CYAN).bold().toString());
+-        replacements.put(ChatColor.RED, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.RED).bold().toString());
+-        replacements.put(ChatColor.LIGHT_PURPLE, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.MAGENTA).bold().toString());
+-        replacements.put(ChatColor.YELLOW, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.YELLOW).bold().toString());
+-        replacements.put(ChatColor.WHITE, Ansi.ansi().a(Attribute.RESET).fg(Ansi.Color.WHITE).bold().toString());
+-        replacements.put(ChatColor.MAGIC, Ansi.ansi().a(Attribute.BLINK_SLOW).toString());
+-        replacements.put(ChatColor.BOLD, Ansi.ansi().a(Attribute.UNDERLINE_DOUBLE).toString());
+-        replacements.put(ChatColor.STRIKETHROUGH, Ansi.ansi().a(Attribute.STRIKETHROUGH_ON).toString());
+-        replacements.put(ChatColor.UNDERLINE, Ansi.ansi().a(Attribute.UNDERLINE).toString());
+-        replacements.put(ChatColor.ITALIC, Ansi.ansi().a(Attribute.ITALIC).toString());
+-        replacements.put(ChatColor.RESET, Ansi.ansi().a(Attribute.RESET).toString());
+-    }
+-
+-    @Override
+-    public void sendMessage(String message) {
+-        if (terminal.isAnsiSupported()) {
+-            if (!conversationTracker.isConversingModaly()) {
+-                String result = message;
+-                for (ChatColor color : colors) {
+-                    if (replacements.containsKey(color)) {
+-                        result = result.replaceAll("(?i)" + color.toString(), replacements.get(color));
+-                    } else {
+-                        result = result.replaceAll("(?i)" + color.toString(), "");
+-                    }
+-                }
+-                System.out.println(result + Ansi.ansi().reset().toString());
+-            }
+-        } else {
+-            super.sendMessage(message);
+-        }
+-    }
+-
+-    public static ConsoleCommandSender getInstance() {
+-        if (Bukkit.getConsoleSender() != null) {
+-            return Bukkit.getConsoleSender();
+-        } else {
+-            return new ColouredConsoleSender();
+-        }
+-    }
+-}
+diff --git a/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java b/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
+index 33e8ea02..1e3aae3b 100644
+--- a/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
++++ b/src/main/java/org/bukkit/craftbukkit/command/ConsoleCommandCompleter.java
+@@ -8,17 +8,27 @@ import java.util.logging.Level;
+ import org.bukkit.craftbukkit.CraftServer;
+ import org.bukkit.craftbukkit.util.Waitable;
+ 
+-import jline.console.completer.Completer;
++// Paper start - JLine update
++import net.minecraft.server.DedicatedServer; // Paper
++import org.jline.reader.Candidate;
++import org.jline.reader.Completer;
++import org.jline.reader.LineReader;
++import org.jline.reader.ParsedLine;
++// Paper end
+ import org.bukkit.event.server.TabCompleteEvent;
+ 
+ public class ConsoleCommandCompleter implements Completer {
+-    private final CraftServer server;
++    private final DedicatedServer server; // Paper - CraftServer -> DedicatedServer
+ 
+-    public ConsoleCommandCompleter(CraftServer server) {
++    public ConsoleCommandCompleter(DedicatedServer server) { // Paper - CraftServer -> DedicatedServer
+         this.server = server;
+     }
+ 
+-    public int complete(final String buffer, final int cursor, final List<CharSequence> candidates) {
++    // Paper start - Change method signature for JLine update
++    public void complete(LineReader reader, ParsedLine line, List<Candidate> candidates) {
++        final CraftServer server = this.server.server;
++        final String buffer = line.line();
++        // Paper end
+         Waitable<List<String>> waitable = new Waitable<List<String>>() {
+             @Override
+             protected List<String> evaluate() {
+@@ -30,25 +40,37 @@ public class ConsoleCommandCompleter implements Completer {
+                 return tabEvent.isCancelled() ? Collections.EMPTY_LIST : tabEvent.getCompletions();
+             }
+         };
+-        this.server.getServer().processQueue.add(waitable);
++        server.getServer().processQueue.add(waitable); // Paper - Remove "this."
+         try {
+             List<String> offers = waitable.get();
+             if (offers == null) {
+-                return cursor;
++                return; // Paper - Method returns void
+             }
+-            candidates.addAll(offers);
+ 
++            // Paper start - JLine update
++            for (String completion : offers) {
++                if (completion.isEmpty()) {
++                    continue;
++                }
++
++                candidates.add(new Candidate(completion));
++            }
++            // Paper end
++
++            // Paper start - JLine handles cursor now
++            /*
+             final int lastSpace = buffer.lastIndexOf(' ');
+             if (lastSpace == -1) {
+                 return cursor - buffer.length();
+             } else {
+                 return cursor - (buffer.length() - lastSpace - 1);
+             }
++            */
++            // Paper end
+         } catch (ExecutionException e) {
+-            this.server.getLogger().log(Level.WARNING, "Unhandled exception when tab completing", e);
++            server.getLogger().log(Level.WARNING, "Unhandled exception when tab completing", e); // Paper - Remove "this."
+         } catch (InterruptedException e) {
+             Thread.currentThread().interrupt();
+         }
+-        return cursor;
+     }
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java b/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
+index ae3481ba..6a38025e 100644
+--- a/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
++++ b/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
+@@ -18,7 +18,7 @@ public class ServerShutdownThread extends Thread {
+             ex.printStackTrace();
+         } finally {
+             try {
+-                server.reader.getTerminal().restore();
++                net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Use TerminalConsoleAppender
+             } catch (Exception e) {
+             }
+         }
+diff --git a/src/main/java/org/bukkit/craftbukkit/util/TerminalConsoleWriterThread.java b/src/main/java/org/bukkit/craftbukkit/util/TerminalConsoleWriterThread.java
+deleted file mode 100644
+index b6409711..00000000
+--- a/src/main/java/org/bukkit/craftbukkit/util/TerminalConsoleWriterThread.java
++++ /dev/null
+@@ -1,54 +0,0 @@
+-package org.bukkit.craftbukkit.util;
+-
+-import java.io.IOException;
+-import java.io.OutputStream;
+-import java.util.logging.Level;
+-import java.util.logging.Logger;
+-import jline.console.ConsoleReader;
+-import com.mojang.util.QueueLogAppender;
+-import org.bukkit.craftbukkit.Main;
+-import org.fusesource.jansi.Ansi;
+-import org.fusesource.jansi.Ansi.Erase;
+-
+-public class TerminalConsoleWriterThread implements Runnable {
+-    final private ConsoleReader reader;
+-    final private OutputStream output;
+-
+-    public TerminalConsoleWriterThread(OutputStream output, ConsoleReader reader) {
+-        this.output = output;
+-        this.reader = reader;
+-    }
+-
+-    public void run() {
+-        String message;
+-
+-        // Using name from log4j config in vanilla jar
+-        while (true) {
+-            message = QueueLogAppender.getNextLogEvent("TerminalConsole");
+-            if (message == null) {
+-                continue;
+-            }
+-
+-            try {
+-                if (Main.useJline) {
+-                    reader.print(Ansi.ansi().eraseLine(Erase.ALL).toString() + ConsoleReader.RESET_LINE);
+-                    reader.flush();
+-                    output.write(message.getBytes());
+-                    output.flush();
+-
+-                    try {
+-                        reader.drawLine();
+-                    } catch (Throwable ex) {
+-                        reader.getCursorBuffer().clear();
+-                    }
+-                    reader.flush();
+-                } else {
+-                    output.write(message.getBytes());
+-                    output.flush();
+-                }
+-            } catch (IOException ex) {
+-                Logger.getLogger(TerminalConsoleWriterThread.class.getName()).log(Level.SEVERE, null, ex);
+-            }
+-        }
+-    }
+-}
+diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
+index 5cee8f00..f248d05f 100644
+--- a/src/main/resources/log4j2.xml
++++ b/src/main/resources/log4j2.xml
+@@ -1,12 +1,12 @@
+ <?xml version="1.0" encoding="UTF-8"?>
+-<Configuration status="WARN" packages="com.mojang.util">
++<Configuration status="WARN">
+     <Appenders>
+         <Console name="WINDOWS_COMPAT" target="SYSTEM_OUT"></Console>
+-        <Queue name="TerminalConsole">
+-            <PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg%n" />
+-        </Queue>
++        <TerminalConsole name="TerminalConsole">
++            <PatternLayout pattern="%highlightError{[%d{HH:mm:ss} %level]: %minecraftFormatting{%msg}%n%xEx}" />
++        </TerminalConsole>
+         <RollingRandomAccessFile name="File" fileName="logs/latest.log" filePattern="logs/%d{yyyy-MM-dd}-%i.log.gz">
+-            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level]: %msg%n" />
++            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level]: %minecraftFormatting{%msg}{strip}%n" />
+             <Policies>
+                 <TimeBasedTriggeringPolicy />
+                 <OnStartupTriggeringPolicy />
+-- 
+2.13.1
+

pom.xml

@@ -40,6 +40,11 @@
             <id>aikar</id>
             <url>http://ci.emc.gs/nexus/content/groups/aikar/</url>
         </repository>
+        <repository>
+            <!-- TODO: Remove when TerminalConsoleAppender is released -->
+            <id>oss-snapshots</id>
+            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+        </repository>
     </repositories>
 
     <distributionManagement>