e -> e.getKey(),
                                e -> e.getValue() == location ? this : new InputLocation(e.getValue())));
        this.importedFrom = location.getImportedFrom() != null ? new InputLocation(location.getImportedFrom()) : null;
    }

    public InputLocation(int lineNumber, int columnNumber) {
        this.lineNumber = lineNumber;
        this.columnNumber = columnNumber;

    public InputSource(org.apache.maven.api.model.InputSource source) {
        this.modelId = source.getModelId();
        this.location = source.getLocation();
        this.importedFrom = source.getImportedFrom() != null ? new InputLocation(source.getImportedFrom()) : null;
    }

    // -----------/
    // - Methods -/
    // -----------/

    /**
     * Method clone.
     *
     * @return InputSource
     */