Fix command redirection detection

core/src/main/java/org/geysermc/geyser/translator/protocol/java/JavaCommandsTranslator.java

@@ -199,9 +199,10 @@ public class JavaCommandsTranslator extends PacketTranslator<ClientboundCommands
      */
     private static CommandParamData[][] getParams(GeyserSession session, CommandNode commandNode, CommandNode[] allNodes) {
         // Check if the command is an alias and redirect it
-        if (commandNode.getRedirectIndex() != -1) {
-            GeyserImpl.getInstance().getLogger().debug("Redirecting command " + commandNode.getName() + " to " + allNodes[commandNode.getRedirectIndex()].getName());
-            commandNode = allNodes[commandNode.getRedirectIndex()];
+        if (commandNode.getRedirectIndex().isPresent()) {
+            int redirectIndex = commandNode.getRedirectIndex().getAsInt();
+            GeyserImpl.getInstance().getLogger().debug("Redirecting command " + commandNode.getName() + " to " + allNodes[redirectIndex].getName());
+            commandNode = allNodes[redirectIndex];
         }
 
         if (commandNode.getChildIndices().length >= 1) {

gradle/libs.versions.toml

@@ -11,7 +11,7 @@ websocket = "1.5.1"
 protocol = "2.9.17-20230217.002312-1"
 raknet = "1.6.28-20220125.214016-6"
 mcauthlib = "d9d773e"
-mcprotocollib = "1.19.4-20230319.152208-5"
+mcprotocollib = "1.19.4-20230319.175814-6"
 adventure = "4.12.0-20220629.025215-9"
 adventure-platform = "4.1.2"
 junit = "5.9.2"