diff --git a/src/main/java/xyz/zhouxy/plusone/commons/collection/CollectionTools.java b/src/main/java/xyz/zhouxy/plusone/commons/collection/CollectionTools.java
index 446ab37..d15aaee 100644
--- a/src/main/java/xyz/zhouxy/plusone/commons/collection/CollectionTools.java
+++ b/src/main/java/xyz/zhouxy/plusone/commons/collection/CollectionTools.java
@@ -21,8 +21,16 @@ import java.util.Map;
 
 import javax.annotation.Nullable;
 
+/**
+ * 集合工具类
+ *
+ * @author <a href="http://zhouxy.xyz:3000/ZhouXY108">ZhouXY</a>
+ * @since 0.1.0
+ */
 public class CollectionTools {
 
+    // TODO [添加] 新增其它集合类型，如 guava 的扩展集合等
+
     // isEmpty
 
     public static boolean isEmpty(@Nullable Collection<?> collection) {