import info.kgeorgiy.java.advanced.implementor.BaseImplementorTest;

private void compileClass(Path fileName, Path root) throws ImplerException {
    JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler();
    if (javaCompiler == null) {
        throw new ImplerException("Java compiler not found");
    }
    final List<String> args = new ArrayList<>();
    args.add(fileName.toString());
    args.add("-cp");
    args.add(root + File.pathSeparator + getClassPath());
    int returnCode = javaCompiler.run(null, null, null, args.toArray(String[]::new));
    if (returnCode != 0) {
        throw new ImplerException("Compilation failed");
    }
}

private static String getClassPath() {
    try {
        return Path.of(BaseImplementorTest.class.getProtectionDomain().getCodeSource().getLocation().toURI()).toString();
    } catch (final URISyntaxException e) {
        throw new AssertionError(e);
    }
}