package com.microsoft;
import com.azure.core.credential.AccessToken;
import com.azure.core.credential.TokenCredential;
import com.azure.core.credential.TokenRequestContext;
import com.microsoft.graph.models.DriveItem;
import com.microsoft.graph.serviceclient.GraphServiceClient;
import java.time.OffsetDateTime;
import reactor.core.publisher.Mono;
public class App {
 public static void main(String[] args) {
 final GraphServiceClient graphClient = new GraphServiceClient(
 new TokenCredential() {
 @Override
 public Mono<AccessToken> getToken(TokenRequestContext request) {
 return Mono.just(new AccessToken(
 "***",
 OffsetDateTime.now().plusDays(1)));
 }
 });
 final DriveItem newMetadata = new DriveItem();
 newMetadata.setName("000");
 final DriveItem result = graphClient
 .drives().byDriveId("097...")
 .items().byDriveItemId("97...!s0c...")
 .patch(newMetadata);
 if (result instanceof DriveItem) {
 System.out.println(result.getName());
 } else {
 System.out.println("Patch returned null");
 }
 }
}