Update to new MCPL

core/src/main/java/org/geysermc/geyser/session/GeyserSession.java

@@ -936,19 +936,7 @@ public class GeyserSession implements GeyserConnection, GeyserCommandSource {
 
         // This isn't a great solution, but... we want to make sure the finish configuration packet cannot be sent
         // before the KnownPacks packet.
-        this.downstream.getSession().addListener(new ClientListener(ProtocolState.LOGIN, loginEvent.transferring()) {
+        this.downstream.getSession().addListener(new ClientListener(ProtocolState.LOGIN, loginEvent.transferring()));
-            @Override
-            public void packetReceived(Session session, Packet packet) {
-                if (protocol.getState() == ProtocolState.CONFIGURATION) {
-                    if (packet instanceof ClientboundFinishConfigurationPacket) {
-                        // Prevent
-                        GeyserSession.this.ensureInEventLoop(() -> GeyserSession.this.sendDownstreamPacket(new ServerboundFinishConfigurationPacket()));
-                        return;
-                    }
-                }
-                super.packetReceived(session, packet);
-            }
-        });
 
         downstream.addListener(new SessionAdapter() {
             @Override
@@ -1694,8 +1682,8 @@ public class GeyserSession implements GeyserConnection, GeyserCommandSource {
             return;
         }
 
-        if (protocol.getState() != intendedState) {
+        if (protocol.getOutboundState() != intendedState) {
-            geyser.getLogger().debug("Tried to send " + packet.getClass().getSimpleName() + " packet while not in " + intendedState.name() + " state");
+            geyser.getLogger().debug("Tried to send " + packet.getClass().getSimpleName() + " packet while not in " + intendedState.name() + " outbound state");
             return;
         }
 
@@ -1729,7 +1717,7 @@ public class GeyserSession implements GeyserConnection, GeyserCommandSource {
     }
 
     private void sendDownstreamPacket0(Packet packet) {
-        ProtocolState state = protocol.getState();
+        ProtocolState state = protocol.getOutboundState();
         if (state == ProtocolState.GAME || state == ProtocolState.CONFIGURATION || packet.getClass() == ServerboundCustomQueryAnswerPacket.class) {
             downstream.sendPacket(packet);
         } else {

gradle/libs.versions.toml

@@ -13,7 +13,7 @@ websocket = "1.5.1"
 protocol = "3.0.0.Beta2-20240704.153116-14"
 raknet = "1.0.0.CR3-20240416.144209-1"
 minecraftauth = "4.1.0"
-mcprotocollib = "1.21-20240725.013034-16"
+mcprotocollib = "1341744"
 adventure = "4.14.0"
 adventure-platform = "4.3.0"
 junit = "5.9.2"
@@ -108,7 +108,7 @@ guava = { group = "com.google.guava", name = "guava", version.ref = "guava" }
 gson = { group = "com.google.code.gson", name = "gson", version.ref = "gson" }
 junit = { group = "org.junit.jupiter", name = "junit-jupiter", version.ref = "junit" }
 minecraftauth = { group = "net.raphimc", name = "MinecraftAuth", version.ref = "minecraftauth" }
-mcprotocollib = { group = "org.geysermc.mcprotocollib", name = "protocol", version.ref = "mcprotocollib" }
+mcprotocollib = { group = "com.github.AlexProgrammerDE", name = "MCProtocolLib", version.ref = "mcprotocollib" }
 raknet = { group = "org.cloudburstmc.netty", name = "netty-transport-raknet", version.ref = "raknet" }
 terminalconsoleappender = { group = "net.minecrell", name = "terminalconsoleappender", version.ref = "terminalconsoleappender" }
 velocity-api = { group = "com.velocitypowered", name = "velocity-api", version.ref = "velocity" }