#2479: Allow injection of BungeeCord commands to 1.13 with inject_commands option

api/src/main/java/net/md_5/bungee/api/plugin/PluginManager.java

@@ -11,6 +11,7 @@ import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
@@ -428,4 +429,14 @@ public class PluginManager
             it.remove();
         }
     }
+
+    /**
+     * Get an unmodifiable collection of all registered commands.
+     *
+     * @return commands
+     */
+    public Collection<String> getCommands()
+    {
+        return Collections.unmodifiableCollection( commandMap.keySet() );
+    }
 }