Enissay

selection.add( new Blah( URL ) ); // create an object and adding it to an arrayList  <= [ERROR SHOWN HERE]


My class:
public Blah(String _URL) throws MalformedURLException, IOException {
    this.URL = _URL;

    Pattern p = Pattern.compile("\\.com\\/[a-z]+\\/(\\d+)");
    Matcher m = p.matcher(getStoreURL());

    if (m.find()) {
        System.out.println( "ID = [" + m.group(1) + "]" ); // works fine

        this.id = Long.parseLong(m.group(1));
    }

        String genreJson = IOUtils.toString(new URL(apiURL + this.id)); // Get the json

        ObjectMapper mapper = new ObjectMapper();

        JsonNode root = mapper.readTree(genreJson);

        setName(root.path(String.valueOf(getId())).path("data").path("name").asText()); // get the name



    System.out.println("In Blah :: getName() " + getName());    // Works fine
}