microsoftgraph-java-v6-v1-beta-clients

CreateBothClients.java

DeviceCodeCredential deviceCodeCredential = new DeviceCodeCredentialBuilder()
    .clientId(clientId)
    .tenantId(tenantId)
    .challengeConsumer(challenge -> System.out.println(challenge.getMessage()))
    .build();

//create a client for calling v1.0 endpoint
com.microsoft.graph.serviceclient.GraphServiceClient graphClient = 
    new com.microsoft.graph.serviceclient.GraphServiceClient(
        deviceCodeCredential,
        graphUserScopes);

com.microsoft.graph.models.User me = graphClient.me().get();

//create a client for calling beta endpoint
com.microsoft.graph.beta.serviceclient.GraphServiceClient betaGraphClient = 
    new com.microsoft.graph.beta.serviceclient.GraphServiceClient(
        deviceCodeCredential,
        graphUserScopes);

com.microsoft.graph.beta.models.User meBeta = betaGraphClient.me().get();