chore: remove unused loadRefreshToken and loadAccessToken stubs

openmetadata-mcp/src/main/java/org/openmetadata/mcp/auth/OAuthAuthorizationServerProvider.java

@@ -75,16 +75,6 @@ CompletableFuture<AuthorizationCode> loadAuthorizationCode(
   CompletableFuture<OAuthToken> exchangeAuthorizationCode(
       OAuthClientInformation client, AuthorizationCode authorizationCode) throws TokenException;
 
-  /**
-   * Loads a RefreshToken by its token string.
-   * @param client The client that is requesting to load the refresh token.
-   * @param refreshToken The refresh token string to load.
-   * @return A CompletableFuture that resolves to the RefreshToken object if found, or
-   * null if not found.
-   */
-  CompletableFuture<RefreshToken> loadRefreshToken(
-      OAuthClientInformation client, String refreshToken);
-
   /**
    * Exchanges a refresh token for an access token and refresh token.
    * @param client The client exchanging the refresh token.
@@ -98,14 +88,6 @@ CompletableFuture<OAuthToken> exchangeRefreshToken(
       OAuthClientInformation client, RefreshToken refreshToken, List<String> scopes)
       throws TokenException;
 
-  /**
-   * Loads an access token by its token.
-   * @param token The access token to verify.
-   * @return A CompletableFuture that resolves to the AccessToken, or null if the token
-   * is invalid.
-   */
-  CompletableFuture<AccessToken> loadAccessToken(String token);
-
   /**
    * Revokes an access or refresh token.
    * @param token The token to revoke.

openmetadata-mcp/src/main/java/org/openmetadata/mcp/server/auth/provider/UserSSOOAuthProvider.java

@@ -20,7 +20,6 @@
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 import lombok.extern.slf4j.Slf4j;
-import org.openmetadata.mcp.auth.AccessToken;
 import org.openmetadata.mcp.auth.AuthorizationCode;
 import org.openmetadata.mcp.auth.AuthorizationParams;
 import org.openmetadata.mcp.auth.OAuthAuthorizationServerProvider;
@@ -807,16 +806,6 @@ public CompletableFuture<AuthorizationCode> loadAuthorizationCode(
     }
   }
 
-  @Override
-  public CompletableFuture<RefreshToken> loadRefreshToken(
-      OAuthClientInformation client, String refreshToken) {
-    // Refresh token validation happens in exchangeRefreshToken which verifies JWT directly
-    // This method is not used in the current implementation
-    return CompletableFuture.failedFuture(
-        new UnsupportedOperationException(
-            "loadRefreshToken not implemented - use exchangeRefreshToken instead"));
-  }
-
   @Override
   public CompletableFuture<OAuthToken> exchangeRefreshToken(
       OAuthClientInformation client, RefreshToken refreshToken, List<String> scopes)
@@ -940,15 +929,6 @@ public CompletableFuture<OAuthToken> exchangeRefreshToken(
     }
   }
 
-  @Override
-  public CompletableFuture<AccessToken> loadAccessToken(String token) {
-    // Access token validation happens through JwtFilter which verifies JWT directly
-    // This method is not used in the current implementation
-    return CompletableFuture.failedFuture(
-        new UnsupportedOperationException(
-            "loadAccessToken not implemented - tokens are validated via JwtFilter"));
-  }
-
   @Override
   public CompletableFuture<Void> revokeToken(Object token) {
     LOG.info("Token revocation requested");