}

    public void addTestCompileSourceRoot(String path) {
        addPath(getTestCompileSourceRoots(), path);
    }

    public List<String> getCompileSourceRoots() {
        return compileSourceRoots;
    }

    public List<String> getTestCompileSourceRoots() {
        return testCompileSourceRoots;
    }

    // TODO let the scope handler deal with this

        List<String> roots;
        if (nonNull(scope, "scope") == ProjectScope.MAIN) {
            roots = prj.getCompileSourceRoots();
        } else if (scope == ProjectScope.TEST) {
            roots = prj.getTestCompileSourceRoots();
        } else {
            throw new IllegalArgumentException("Unsupported scope " + scope);
        }
        return roots.stream()
                .map(Paths::get)