GoogleCredential instantiation

ContinuousDeployDemo.java

NetHttpTransport http = GoogleNetHttpTransport.newTrustedTransport();
JacksonFactory json = JacksonFactory.getDefaultInstance();

Set<String> scopes = Collections.singleton(AndroidPublisherScopes.ANDROIDPUBLISHER);

File secretFile = new File(Constants.SECRET_FILE_PATH);
GoogleCredential credential = new GoogleCredential.Builder().
     setTransport(http).
     setJsonFactory(json).
     setServiceAccountPrivateKeyId(Constants.KEY_ID).
     setServiceAccountId(Constants.SERVICE_ACCOUNT_EMAIL).
     setServiceAccountScopes(scopes).
     setServiceAccountPrivateKeyFromPemFile(secretFile).
     build();