java.nio.file.FileSystemNotFoundException when getting file from resources folder

Question

I am getting this error on the following code (note that this does not happen on my local machine, only on my build server):

Files.readAllBytes(Paths.get(get         


        

Answer 1

Don't try to access a resource like a file. Just grab the InputStream and read the data from there:

byte[] data;
try (InputStream in = getClass().getResourceAsStream("/elasticsearch/segmentsIndex.json")) {
    data = in.readAllBytes​(); // usable in Java 9+
    // data = IOUtils.toByteArray(in); // uses Apache commons IO library
}

This example uses the IOUtils class from Apache commons-io library.

If you are targeting Java 9+ you can alternatively use data = in.readAllBytes​();.