in auth-lib/src/main/java/com/spotify/sdk/android/auth/AuthorizationRequest.java [79:93]
public Builder(String clientId, AuthorizationResponse.Type responseType, String redirectUri) {
if (clientId == null) {
throw new IllegalArgumentException("Client ID can't be null");
}
if (responseType == null) {
throw new IllegalArgumentException("Response type can't be null");
}
if (redirectUri == null || redirectUri.length() == 0) {
throw new IllegalArgumentException("Redirect URI can't be null or empty");
}
mClientId = clientId;
mResponseType = responseType;
mRedirectUri = redirectUri;
}