搜索用户无法将其与ms graph java SDK一起使用

IAuthenticationProvider authProvider = new ClientCredentialProvider(clientId, clientSecret, tenantId);
GraphServiceClient graphClient = GraphServiceClient.builder().authenticationProvider(authProvider).buildClient();

UserCollectionPage users = graphClient.users()
    .buildRequest()
    .filter("startsWith(displayName,'a')")
    .get();

import com.microsoft.graph.auth.enums.NationalCloud;
import com.microsoft.graph.auth.providers.ClientCredentialProvider;
import com.microsoft.graph.models.User;
import com.microsoft.graph.requests.GraphServiceClient;
import com.microsoft.graph.requests.UserCollectionPage;

public class GraphExample {
    public static void main(String[] args) {
        String clientId = "YOUR_CLIENT_ID";
        String clientSecret = "YOUR_CLIENT_SECRET";
        String tenantId = "YOUR_TENANT_ID";

        IAuthenticationProvider authProvider = new ClientCredentialProvider(clientId, clientSecret, tenantId);
        GraphServiceClient graphClient = GraphServiceClient.builder().authenticationProvider(authProvider).buildClient();

        UserCollectionPage users = graphClient.users()
            .buildRequest()
            .filter("startsWith(displayName,'a')")
            .get();

        for (User user : users.getCurrentPage()) {
            System.out.println(user.displayName);
        }
    }
}