From 7353aa0b2e099c6bad708a53066e03611eb035ee Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 16 Mar 2018 16:48:24 -0400
Subject: [PATCH] fix sponge tab complete API

---
 core/src/main/java/co/aikar/commands/BaseCommand.java         | 3 ++-
 sponge/src/main/java/co/aikar/commands/SpongeRootCommand.java | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/core/src/main/java/co/aikar/commands/BaseCommand.java b/core/src/main/java/co/aikar/commands/BaseCommand.java
index 7dddc454..52fb329a 100644
--- a/core/src/main/java/co/aikar/commands/BaseCommand.java
+++ b/core/src/main/java/co/aikar/commands/BaseCommand.java
@@ -496,6 +496,7 @@ public abstract class BaseCommand {
 
     List<String> getCommandsForCompletion(CommandIssuer issuer, String[] args) {
         final Set<String> cmds = new HashSet<>();
+        final int cmdIndex = Math.max(0, args.length - 1);
         String argString = ApacheCommonsLangUtil.join(args, " ").toLowerCase();
         for (Map.Entry<String, RegisteredCommand> entry : subCommands.entries()) {
             final String key = entry.getKey();
@@ -506,7 +507,7 @@ public abstract class BaseCommand {
                 }
 
                 String[] split = ACFPatterns.SPACE.split(value.prefSubCommand);
-                cmds.add(split[args.length - 1]);
+                cmds.add(split[cmdIndex]);
             }
         }
         return new ArrayList<>(cmds);
diff --git a/sponge/src/main/java/co/aikar/commands/SpongeRootCommand.java b/sponge/src/main/java/co/aikar/commands/SpongeRootCommand.java
index f548f5a7..6e69daca 100644
--- a/sponge/src/main/java/co/aikar/commands/SpongeRootCommand.java
+++ b/sponge/src/main/java/co/aikar/commands/SpongeRootCommand.java
@@ -66,7 +66,7 @@ public class SpongeRootCommand implements CommandCallable, RootCommand {
 
     @Override
     public List<String> getSuggestions(@NotNull CommandSource source, @NotNull String arguments, @Nullable Location<World> location) throws CommandException {
-        String[] args = arguments.isEmpty() ? new String[0] : arguments.split(" ");
+        String[] args = arguments.isEmpty() ? new String[]{""} : arguments.split(" ");
         return getTabCompletions(manager.getCommandIssuer(source), this.name, args);
     }