presto-hive/src/main/java/io/prestosql/plugin/hive/HdfsConfigurationInitializer.java/HdfsConfigurationInitializer/readConfiguration
class HdfsConfigurationInitializer:    private static Configuration readConfiguration(List<File> resourcePaths)
    {
        Configuration result = new Configuration(false);

        for (File resourcePath : resourcePaths) {
            checkArgument(resourcePath.exists(), "File does not exist: %s", resourcePath);

            Configuration resourceProperties = new Configuration(false);
            resourceProperties.addResource(new Path(resourcePath.toString()));
            copy(resourceProperties, result);
        }

        return result;
    }