diff --git a/src/main/java/xyz/zhouxy/plusone/commons/annotation/UnsupportedOperation.java b/src/main/java/xyz/zhouxy/plusone/commons/annotation/UnsupportedOperation.java
new file mode 100644
index 0000000..9f63ce9
--- /dev/null
+++ b/src/main/java/xyz/zhouxy/plusone/commons/annotation/UnsupportedOperation.java
@@ -0,0 +1,11 @@
+package xyz.zhouxy.plusone.commons.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.SOURCE)
+public @interface UnsupportedOperation {
+}