diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayConfigStorage.java b/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayConfigStorage.java
index 389778f..cb518d8 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayConfigStorage.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayConfigStorage.java
@@ -86,7 +86,7 @@ public abstract class BasePayConfigStorage implements PayConfigStorage{
      */
     private boolean isCertSign = false;
 
-
+    @Override
     public CertDescriptor getCertDescriptor() {
         if (!isCertSign){
            throw new PayErrorException(new PayException("certDescriptor fail", "isCertSign is false"));
@@ -105,7 +105,7 @@ public abstract class BasePayConfigStorage implements PayConfigStorage{
     public void setKeyPrivate(String keyPrivate) {
         this.keyPrivate = keyPrivate;
     }
-
+    @Override
     public String getKeyPrivateCertPwd() {
         return keyPrivateCertPwd;
     }