Failed to read file – How to solve related issues

Log Context

Log “Failed to read file [{}]” classname is FileBasedUnicastHostsProvider.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

     private List readFileContents(Path path) {
        try (Stream lines = Files.lines(path)) {
            return lines.filter(line -> line.startsWith("#") == false) // lines starting with `#` are comments
                .collect(Collectors.toList());
        } catch (IOException e) {
            logger.warn(() -> new ParameterizedMessage("failed to read file [{}]"; unicastHostsFilePath); e);
            return Collections.emptyList();
        }
    }

    
Override