diff --git a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/ParsingFailureException.java b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/ParsingFailureException.java
index 1572899..60a7102 100644
--- a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/ParsingFailureException.java
+++ b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/ParsingFailureException.java
@@ -183,7 +183,7 @@ public final class ParsingFailureException
         @Nonnull
         private final String defaultMessage;
 
-        Type(String code, String defaultMessage) {
+        Type(@Nonnull String code, @Nonnull String defaultMessage) {
             this.code = code;
             this.defaultMessage = defaultMessage;
         }
diff --git a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/InvalidInputException.java b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/InvalidInputException.java
index 5859c5c..15dd0dc 100644
--- a/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/InvalidInputException.java
+++ b/plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/exception/business/InvalidInputException.java
@@ -123,7 +123,7 @@ public final class InvalidInputException
         @Nonnull
         private final String defaultMessage;
 
-        Type(String code, String defaultMsg) {
+        Type(@Nonnull String code, @Nonnull String defaultMsg) {
             this.code = code;
             this.defaultMessage = defaultMsg;
         }