Are Client_ID and username the same? about active-directory-java-native-headless

[anotherrohit]

I don't think so. Client id is not the username. I tried the username as the email address that was registered with azure with no luck, but username leaving the domain out i saw a different error
Exception in thread "main" java.util.concurrent.ExecutionException: com.microsoft.aad.adal4j.AuthenticationException: {"error_description":"AADSTS90019: No tenant-identifying information found in either the request or implied by any provided credentials.\r\nTrace ID: e40596bf-5661-4d99-aa7e-3b7165581e00\r\nCorrelation ID: 649b78be-4308-4917-b595-f1ae56c4c78c\r\nTimestamp: 2017-11-23 22:14:51Z","error":"invalid_request"}

[jmprieur]

Indeed, clientId and username are the the same. the clientId is a GUID which represents the application

Thanks for the feedback. The sample was updated with clear instructions on how to register the Azure AD application (or even scripts to do that)