不指定作用域的MSAL4J AcquireTokenSilently

import com.microsoft.aad.msal4j.*;

import java.net.MalformedURLException;
import java.net.URI;
import java.util.Arrays;

public class AcquireTokenExample {
    public static void main(String[] args) throws Exception {
        PublicClientApplication app = PublicClientApplication.builder("clientId")
            .authority("https://login.microsoftonline.com/tenantId")
            .build();

        SilentTokenParameters parameters = SilentTokenParameters.builder(
            Arrays.asList("User.Read"), new ClientCredential("clientId", "clientSecret"))
            .build();

        try {
            IAuthenticationResult result = app.acquireTokenSilently(parameters).join();
            System.out.println("Access Token: " + result.accessToken());
        } catch (Exception e) {
            if (e.getCause() instanceof MsalClientException) {
                System.out.println("MsalClientException: " + e.getCause().getMessage());
            } else if (e.getCause() instanceof MsalServiceException) {
                System.out.println("MsalServiceException: " + e.getCause().getMessage());
            }
        }
    }
}