Fix bungee packetevents injector.

api/src/main/java/com/github/retrooper/packetevents/protocol/player/User.java

@@ -209,9 +209,9 @@ public class User {
     }
 
     public void sendTitle(Component title, Component subtitle, int fadeInTicks, int stayTicks, int fadeOutTicks) {
-        ServerVersion version = PacketEvents.getAPI().getInjector().isProxy() ? getClientVersion().toServerVersion() :
-                PacketEvents.getAPI().getServerManager().getVersion();
-        boolean modern = version.isNewerThanOrEquals(ServerVersion.V_1_17);
+        ClientVersion version = PacketEvents.getAPI().getInjector().isProxy() ? getClientVersion() :
+                PacketEvents.getAPI().getServerManager().getVersion().toClientVersion();
+        boolean modern = version.isNewerThanOrEquals(ClientVersion.V_1_17);
         PacketWrapper<?> animation;
         PacketWrapper<?> setTitle = null;
         PacketWrapper<?> setSubtitle = null;

bungeecord/src/main/java/io/github/retrooper/packetevents/injector/BungeeChannelInitializer.java

@@ -0,0 +1,33 @@
+package io.github.retrooper.packetevents.injector;
+
+import com.github.retrooper.packetevents.protocol.ConnectionState;
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelInitializer;
+import org.jetbrains.annotations.NotNull;
+
+import java.lang.reflect.Method;
+
+public class BungeeChannelInitializer extends ChannelInitializer<Channel> {
+    private static final Method INIT_CHANNEL_METHOD;
+
+    static {
+        try {
+            INIT_CHANNEL_METHOD = ChannelInitializer.class.getDeclaredMethod("initChannel", Channel.class);
+            INIT_CHANNEL_METHOD.setAccessible(true);
+        } catch (NoSuchMethodException e) {
+            throw new RuntimeException(e);
+        }
+    }
+    private final Object oldInitializer;
+    public BungeeChannelInitializer(Object oldInitializer) {
+        this.oldInitializer = oldInitializer;
+    }
+
+    @Override
+    protected void initChannel(@NotNull Channel channel) throws Exception {
+        if (!channel.isActive()) return;
+        INIT_CHANNEL_METHOD.invoke(oldInitializer, channel);
+
+        ServerConnectionInitializer.initChannel(channel, ConnectionState.HANDSHAKING);
+    }
+}

bungeecord/src/main/java/io/github/retrooper/packetevents/injector/BungeePipelineInjector.java

@@ -73,25 +73,18 @@ public class BungeePipelineInjector implements ChannelInjector {
             return;
         }
 
-        Field finalInitializerField = initializerField;
-        ChannelHandler finalBootstrapAcceptor = bootstrapAcceptor;
-        ChannelInitializer<Channel> newInitializer = new ChannelInitializer<Channel>() {
-            @Override
-            protected void initChannel(@NotNull Channel channel) throws Exception {
-                if (!channel.isActive()) return;
-                Method initChannelMethod = ChannelInitializer.class.getDeclaredMethod("initChannel", Channel.class);
-                initChannelMethod.setAccessible(true);
-
-                Object initializer = finalInitializerField.get(finalBootstrapAcceptor);
-                initChannelMethod.invoke(initializer, channel);
-
-                ServerConnectionInitializer.initChannel(channel, ConnectionState.HANDSHAKING);
-            }
-        };
+        ChannelInitializer<Channel> newInitializer;
+        try {
+            newInitializer = new BungeeChannelInitializer(initializerField.get(bootstrapAcceptor));
+        } catch (IllegalAccessException e) {
+            throw new RuntimeException(e);
+        }
 
         try {
-            finalInitializerField.set(bootstrapAcceptor, newInitializer);
-        } catch (IllegalAccessException e) {
+            Field f = bootstrapAcceptor.getClass().getDeclaredField("childHandler");
+            f.setAccessible(true);
+            f.set(bootstrapAcceptor, newInitializer);
+        } catch (IllegalAccessException | NoSuchFieldException e) {
             throw new RuntimeException(e);
         }