diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/feign/ApiClient.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/feign/ApiClient.mustache
index ed8f2302eb82..249f4b65abaa 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/feign/ApiClient.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/feign/ApiClient.mustache
@@ -274,8 +274,8 @@ public class ApiClient {
   {{#hasOAuthMethods}}
   /**
    * Helper method to configure the client credentials for Oauth
-   * @param username Username
-   * @param password Password
+   * @param clientId Client ID
+   * @param clientSecret Client secret
    */
   public void setClientCredentials(String clientId, String clientSecret) {
     OauthClientCredentialsGrant authorization = getAuthorization(OauthClientCredentialsGrant.class);
@@ -286,6 +286,8 @@ public class ApiClient {
    * Helper method to configure the username/password for Oauth password grant
    * @param username Username
    * @param password Password
+   * @param clientId Client ID
+   * @param clientSecret Client secret
    */
   public void setOauthPassword(String username, String password, String clientId, String clientSecret) {
     OauthPasswordGrant apiAuthorization = getAuthorization(OauthPasswordGrant.class);
diff --git a/samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/ApiClient.java b/samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/ApiClient.java
index da2d48856c65..da622ac9d094 100644
--- a/samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/ApiClient.java
+++ b/samples/client/petstore/java/feign-no-nullable/src/main/java/org/openapitools/client/ApiClient.java
@@ -230,8 +230,8 @@ public void setCredentials(String username, String password) {
 
   /**
    * Helper method to configure the client credentials for Oauth
-   * @param username Username
-   * @param password Password
+   * @param clientId Client ID
+   * @param clientSecret Client secret
    */
   public void setClientCredentials(String clientId, String clientSecret) {
     OauthClientCredentialsGrant authorization = getAuthorization(OauthClientCredentialsGrant.class);
@@ -242,6 +242,8 @@ public void setClientCredentials(String clientId, String clientSecret) {
    * Helper method to configure the username/password for Oauth password grant
    * @param username Username
    * @param password Password
+   * @param clientId Client ID
+   * @param clientSecret Client secret
    */
   public void setOauthPassword(String username, String password, String clientId, String clientSecret) {
     OauthPasswordGrant apiAuthorization = getAuthorization(OauthPasswordGrant.class);
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/ApiClient.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/ApiClient.java
index fb8f19963d9a..6d02aa546b8c 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/ApiClient.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/ApiClient.java
@@ -237,8 +237,8 @@ public void setCredentials(String username, String password) {
 
   /**
    * Helper method to configure the client credentials for Oauth
-   * @param username Username
-   * @param password Password
+   * @param clientId Client ID
+   * @param clientSecret Client secret
    */
   public void setClientCredentials(String clientId, String clientSecret) {
     OauthClientCredentialsGrant authorization = getAuthorization(OauthClientCredentialsGrant.class);
@@ -249,6 +249,8 @@ public void setClientCredentials(String clientId, String clientSecret) {
    * Helper method to configure the username/password for Oauth password grant
    * @param username Username
    * @param password Password
+   * @param clientId Client ID
+   * @param clientSecret Client secret
    */
   public void setOauthPassword(String username, String password, String clientId, String clientSecret) {
     OauthPasswordGrant apiAuthorization = getAuthorization(OauthPasswordGrant.class);