/**
   * Returns the range containing this key and its associated value, if such a range is present in
   * the range map, or {@code null} otherwise.
   */
  @CheckForNull
  Entry<Range<K>, V> getEntry(K key);

  /**
   * Returns the minimal range {@linkplain Range#encloses(Range) enclosing} the ranges in this
   * {@code RangeMap}.
   *
   * @throws NoSuchElementException if this range map is empty
   */
  Range<K> span();

  /**

    Version parseVersion(@Nonnull String version);

    /**
     * Parses the specified version range specification, for example "[1.0,2.0)".
     *
     * @param range the range specification to parse, must not be {@code null}
     * @return the parsed version range, never {@code null}
     * @throws VersionParserException if the range specification violates the syntax rules of this scheme
     */
    @Nonnull

    /**
     * Checks whether the current Maven runtime matches the specified version range. A version range can either use the
     * usual mathematical syntax "[2.0.10,2.1.0),[3.0,)" or use a single version "2.2.1". The latter is a short form for
     * "[2.2.1,)", i.e. denotes the minimum version required.
     *
     * @param versionRange The version range to match the current Maven runtime against, must not be {@code null}.

    // A surrogate pair defining a code point within the safe range.
    String safeInput = "\uD800\uDC00"; // 0x10000
    assertEquals(safeInput, surrogateEscaper.escape(safeInput));

    // A surrogate pair defining a code point outside the safe range (but both
    // of the surrogate characters lie within the safe range). It is important
    // not to accidentally treat this as a sequence of safe characters.

    }

    private static boolean isInRange(String value, List<RangeValue> range) {
        int leftRelation = getRelationOrder(value, range.get(0), true);

        if (leftRelation == 0) {
            return true;
        }

        if (leftRelation < 0) {
            return false;
        }

        return getRelationOrder(value, range.get(1), false) <= 0;
    }

        // ...
        //
        // And the range is not set so we'll check here and set it. jvz.

        if (range == null) {
            range = VersionRange.createFromVersion(artifact.getVersion());
        }

        DefaultArtifact clone = new DefaultArtifact(
                artifact.getGroupId(),
                artifact.getArtifactId(),
                range,
                artifact.getScope(),

 * the License.
 */

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;

/**
 * Indicates whether an endpoint of some range is contained in the range itself ("closed") or not
 * ("open"). If a range is unbounded on a side, it is neither open nor closed on that side; the
 * bound simply does not exist.
 *
 * @since 10.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault

        return new DefaultVersion(versionScheme, version);
    }

    @Override
    public VersionRange parseVersionRange(String range) {
        requireNonNull(range, "range");
        return new DefaultVersionRange(versionScheme, range);
    }

    @Override
    public boolean isSnapshot(String version) {
        return checkSnapshot(version);
    }

                "Expected 'UnresolvableModelException' not thrown.");
        assertEquals("No versions matched the requested parent version range '[2.0,2.1)'", e.getMessage());
    }

    @Test
    void testResolveParentThrowsUnresolvableModelExceptionWhenUsingRangesWithoutUpperBound() throws Exception {
        final Parent parent = new Parent();

   *
   * <pre>{@code
   * static final ImmutableGraph<Country> COUNTRY_ADJACENCY_GRAPH =
   *     GraphBuilder.undirected()
   *         .<Country>immutable()
   *         .putEdge(FRANCE, GERMANY)
   *         .putEdge(FRANCE, BELGIUM)
   *         .putEdge(GERMANY, BELGIUM)
   *         .addNode(ICELAND)
   *         .build();
   * }</pre>
   *