private final Map<Path, String> descriptors;

    /**
     * Whether module hierarchy was detected. If false, then package hierarchy is assumed.
     * In a package hierarchy, the {@linkplain #descriptors} map has either zero or one entry.
     * In a module hierarchy, the descriptors map may have an arbitrary number of entries,
     * including one (so the map size cannot be used as a criterion).
     *
     * @see #isModuleHierarchy()
     */

        checkVersionsOrder(c, d);
        checkVersionsOrder(b, d);
        checkVersionsOrder(a, d);
    }

    /**
     * Test all versions are equal when starting with many leading zeroes regardless of string length
     * (related to MNG-6572 optimization)
     */
    @Test
    void testVersionEqualWithLeadingZeroes() {
        // versions with string lengths from 1 to 19

            return BIGINTEGER_ITEM;
        }

        @Override
        public boolean isNull() {
            return BigInteger.ZERO.equals(value);
        }

        @Override
        public int compareTo(Item item) {
            if (item == null) {
                return BigInteger.ZERO.equals(value) ? 0 : 1; // 1.0 == 1, 1.1 > 1
            }

            switch (item.getType()) {
                case INT_ITEM:

    private final Map<Path, String> descriptors;

    /**
     * Whether module hierarchy was detected. If false, then package hierarchy is assumed.
     * In a package hierarchy, the {@linkplain #descriptors} map has either zero or one entry.
     * In a module hierarchy, the descriptors map may have an arbitrary number of entries,
     * including one (so the map size cannot be used as a criterion).
     *
     * @see #isModuleHierarchy()
     */