in emr-user-role-mapper-application/src/main/java/com/amazon/aws/emr/ApplicationConfiguration.java [51:61]
private boolean isValidConfig() {
boolean isValid = true;
if ((getProperty(Constants.ROLE_MAPPER_CLASS, null) == null) &&
(getProperty(Constants.ROLE_MAPPING_S3_BUCKET, null) == null &&
getProperty(Constants.ROLE_MAPPING_S3_KEY, null) == null)) {
log.error("Both custom class name and bucket/key can't be null.");
isValid = false;
}
return isValid;
}