diff --git a/base/command/pom.xml b/base/command/pom.xml
index 5c90198..9f460da 100644
--- a/base/command/pom.xml
+++ b/base/command/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/base/command/src/main/java/cc/carm/lib/easyplugin/command/CommandHandler.java b/base/command/src/main/java/cc/carm/lib/easyplugin/command/CommandHandler.java
index 4cc53e5..b4a606a 100644
--- a/base/command/src/main/java/cc/carm/lib/easyplugin/command/CommandHandler.java
+++ b/base/command/src/main/java/cc/carm/lib/easyplugin/command/CommandHandler.java
@@ -11,13 +11,14 @@ import org.jetbrains.annotations.Nullable;
 import java.util.*;
 import java.util.stream.Collectors;
 
+@SuppressWarnings("UnusedReturnValue")
 public abstract class CommandHandler implements TabExecutor, NamedExecutor {
 
     protected final @NotNull JavaPlugin plugin;
     protected final @NotNull String cmd;
     protected final @NotNull List<String> aliases;
 
-    protected final @NotNull Map<String, SubCommand> registeredCommands = new HashMap<>();
+    protected final @NotNull Map<String, SubCommand<?>> registeredCommands = new HashMap<>();
     protected final @NotNull Map<String, CommandHandler> registeredHandlers = new HashMap<>();
 
     protected final @NotNull Map<String, String> aliasesMap = new HashMap<>();
@@ -36,13 +37,13 @@ public abstract class CommandHandler implements TabExecutor, NamedExecutor {
         this.aliases = Arrays.asList(aliases);
     }
 
-    public abstract void noArgs(CommandSender sender);
+    public abstract Void noArgs(CommandSender sender);
 
-    public void unknownCommand(CommandSender sender, String[] args) {
-        noArgs(sender);
+    public Void unknownCommand(CommandSender sender, String[] args) {
+        return noArgs(sender);
     }
 
-    public abstract void noPermission(CommandSender sender);
+    public abstract Void noPermission(CommandSender sender);
 
     @Override
     public @NotNull List<String> getAliases() {
@@ -54,7 +55,7 @@ public abstract class CommandHandler implements TabExecutor, NamedExecutor {
         return this.cmd;
     }
 
-    public void registerSubCommand(SubCommand command) {
+    public void registerSubCommand(SubCommand<?> command) {
         String name = command.getName().toLowerCase();
         this.registeredCommands.put(name, command);
         command.getAliases().forEach(alias -> this.aliasesMap.put(alias.toLowerCase(), name));
@@ -82,14 +83,14 @@ public abstract class CommandHandler implements TabExecutor, NamedExecutor {
                 }
             }
 
-            SubCommand subCommand = getSubCommand(input);
-            if (subCommand == null) {
+            SubCommand<?> sub = getSubCommand(input);
+            if (sub == null) {
                 this.unknownCommand(sender, args);
-            } else if (!subCommand.hasPermission(sender)) {
+            } else if (!sub.hasPermission(sender)) {
                 this.noPermission(sender);
             } else {
                 try {
-                    subCommand.execute(this.plugin, sender, this.shortenArgs(args));
+                    sub.execute(this.plugin, sender, this.shortenArgs(args));
                 } catch (ArrayIndexOutOfBoundsException var9) {
                     this.unknownCommand(sender, args);
                 }
@@ -117,9 +118,9 @@ public abstract class CommandHandler implements TabExecutor, NamedExecutor {
                 return handler.onTabComplete(sender, command, alias, this.shortenArgs(args));
             }
 
-            SubCommand subCommand = getSubCommand(input);
-            if (subCommand != null && subCommand.hasPermission(sender)) {
-                return subCommand.tabComplete(this.plugin, sender, this.shortenArgs(args));
+            SubCommand<?> sub = getSubCommand(input);
+            if (sub != null && sub.hasPermission(sender)) {
+                return sub.tabComplete(this.plugin, sender, this.shortenArgs(args));
             }
 
             return Collections.emptyList();
@@ -144,8 +145,8 @@ public abstract class CommandHandler implements TabExecutor, NamedExecutor {
         else return this.registeredHandlers.get(nameFromAlias);
     }
 
-    protected @Nullable SubCommand getSubCommand(@NotNull String name) {
-        SubCommand fromName = this.registeredCommands.get(name);
+    protected @Nullable SubCommand<?> getSubCommand(@NotNull String name) {
+        SubCommand<?> fromName = this.registeredCommands.get(name);
         if (fromName != null) return fromName;
 
         String nameFromAlias = this.aliasesMap.get(name);
diff --git a/base/command/src/main/java/cc/carm/lib/easyplugin/command/SubCommand.java b/base/command/src/main/java/cc/carm/lib/easyplugin/command/SubCommand.java
index 9295324..5080435 100644
--- a/base/command/src/main/java/cc/carm/lib/easyplugin/command/SubCommand.java
+++ b/base/command/src/main/java/cc/carm/lib/easyplugin/command/SubCommand.java
@@ -2,28 +2,38 @@ package cc.carm.lib.easyplugin.command;
 
 import org.bukkit.command.CommandSender;
 import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Unmodifiable;
 
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
 @SuppressWarnings("UnusedReturnValue")
-public abstract class SubCommand implements NamedExecutor {
+public abstract class SubCommand<C extends CommandHandler> implements NamedExecutor {
+
+    private final @NotNull C parent;
 
     private final String name;
     private final List<String> aliases;
 
-    public SubCommand(String name, String... aliases) {
+    public SubCommand(@NotNull C parent, String name, String... aliases) {
+        this.parent = parent;
         this.name = name;
         this.aliases = Arrays.asList(aliases);
     }
 
+    public @NotNull C getParent() {
+        return parent;
+    }
+
     @Override
     public String getName() {
         return this.name;
     }
 
     @Override
+    @Unmodifiable
     public List<String> getAliases() {
         return this.aliases;
     }
@@ -33,6 +43,5 @@ public abstract class SubCommand implements NamedExecutor {
     public List<String> tabComplete(JavaPlugin plugin, CommandSender sender, String[] args) {
         return Collections.emptyList();
     }
-
-
+    
 }
diff --git a/base/conf/pom.xml b/base/conf/pom.xml
index a32de86..fab38b2 100644
--- a/base/conf/pom.xml
+++ b/base/conf/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/base/database/pom.xml b/base/database/pom.xml
index e1ba1ea..722685e 100644
--- a/base/database/pom.xml
+++ b/base/database/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/base/gui/pom.xml b/base/gui/pom.xml
index 3667df5..41053aa 100644
--- a/base/gui/pom.xml
+++ b/base/gui/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/base/listener/pom.xml b/base/listener/pom.xml
index 9807e1e..cf1a71b 100644
--- a/base/listener/pom.xml
+++ b/base/listener/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/base/main/pom.xml b/base/main/pom.xml
index 1146247..b7225e4 100644
--- a/base/main/pom.xml
+++ b/base/main/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/base/storage/pom.xml b/base/storage/pom.xml
index 379801f..6b4617a 100644
--- a/base/storage/pom.xml
+++ b/base/storage/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/collection/all/pom.xml b/collection/all/pom.xml
index 070fb1f..00a5441 100644
--- a/collection/all/pom.xml
+++ b/collection/all/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/collection/bom/pom.xml b/collection/bom/pom.xml
index fd8fd77..5457e56 100644
--- a/collection/bom/pom.xml
+++ b/collection/bom/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/collection/common/pom.xml b/collection/common/pom.xml
index b120d8b..1ad40ab 100644
--- a/collection/common/pom.xml
+++ b/collection/common/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/extension/gh-checker/pom.xml b/extension/gh-checker/pom.xml
index 64bcd58..762c990 100644
--- a/extension/gh-checker/pom.xml
+++ b/extension/gh-checker/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/extension/papi/pom.xml b/extension/papi/pom.xml
index 22e31ae..3800b79 100644
--- a/extension/papi/pom.xml
+++ b/extension/papi/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/extension/vault/pom.xml b/extension/vault/pom.xml
index b00b719..bf95f1f 100644
--- a/extension/vault/pom.xml
+++ b/extension/vault/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>easyplugin-parent</artifactId>
         <groupId>cc.carm.lib</groupId>
-        <version>1.4.13</version>
+        <version>1.4.14</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/pom.xml b/pom.xml
index 7c8b103..94c9b92 100644
--- a/pom.xml
+++ b/pom.xml
@@ -15,7 +15,7 @@
     <groupId>cc.carm.lib</groupId>
     <artifactId>easyplugin-parent</artifactId>
     <packaging>pom</packaging>
-    <version>1.4.13</version>
+    <version>1.4.14</version>
     <modules>
 
         <module>base/main</module>