}
        }

        /*
         * NOTE: This is primarily to keep backward-compat with Maven 2.x which did not validate that dependencies are
         * unique within a single POM. Upon multiple declarations, 2.x just kept the last one but retained the order of
         * the first occurrence. So when we're in lenient/compat mode, we have to deal with such broken POMs and mimic

                .collect(Collectors.toList());
    }

    private Map<String, Lifecycle> lookupLifecycles() {
        // TODO: Remove the following code when maven-compat is gone
        // This code is here to ensure maven-compat's EmptyLifecycleExecutor keeps on working.
        if (lookup == null) {
            return customLifecycles != null ? customLifecycles : new HashMap<>();
        }

~~ specific language governing permissions and limitations
~~ under the License.

 -----
 Introduction
 -----
 Hervé Boutemy
 -----
 2016-05-29
 -----

Maven Compat

 Maven2 classes maintained as compatibility layer for plugins that need to keep Maven2 compatibility.

 Plugins should avoid these classes and be updated to use only Maven3 dependencies (and require Maven3): see

    <T> void set(@Nonnull Key<T> key, @Nullable T value);

    /**
     * Associates the specified session data with the given key if the key is currently mapped to the given value. This
     * method provides an atomic compare-and-update of some key's value.
     *
     * @param key the key under which to store the session data, must not be {@code null}
     * @param oldValue the expected data currently associated with the key, may be {@code null}

    <module>maven-reporting-api</module>
    <module>maven-project-builder</module>
    <module>maven-mercury</module>
    <module>maven-embedder</module>
    <module>maven-toolchain</module>
    <module>maven-compat</module>
    <module>maven-repository</module>
    <module>maven-repository-mercury</module>
  </modules>
  <!--start-->
  <dependencies>
    <dependency>
      <groupId>junit</groupId>

    <module>maven-reporting-api</module>
    <module>maven-project-builder</module>
    <module>maven-mercury</module>
    <module>maven-embedder</module>
    <module>maven-toolchain</module>
    <module>maven-compat</module>
    <module>maven-repository</module>
    <module>maven-repository-mercury</module>
  </modules>
  <!--start-->
  <dependencies>
    <dependency>
      <groupId>junit</groupId>

        assertEquals(0, c2.compareTo(c1), "expected " + v2 + " == " + v1);
    }

    private void checkVersionsArrayEqual(String[] array) {
        // compare against each other (including itself)
        for (int i = 0; i < array.length; ++i)
            for (int j = i; j < array.length; ++j) checkVersionsEqual(array[i], array[j]);
    }

ng, int, String); } org/codehaus/plexus/classworlds/launcher/Configurator$1.class package org.codehaus.plexus.classworlds.launcher; synchronized class Configurator$1 implements java.util.Comparator { void Configurator$1(Configurator); public int compare(Object, Object); } org/codehaus/plexus/classworlds/launcher/Configurator$2.class package org.codehaus.plexus.classworlds.launcher; synchronized class Configurator$2 implements java.io.FilenameFilter { void Configurator$2(Configurator, String, String);...

        for (String version : args) {
            ComparableVersion c = new ComparableVersion(version);

            if (prev != null) {
                int compare = prev.compareTo(c);
                System.out.println("   " + prev.toString() + ' ' + ((compare == 0) ? "==" : ((compare < 0) ? "<" : ">"))
                        + ' ' + version);
            }

            System.out.println(

  <parent>
    <groupId>org.apache.maven</groupId>
    <artifactId>maven</artifactId>
    <version>4.0.0-alpha-14-SNAPSHOT</version>
  </parent>

  <artifactId>maven-compat</artifactId>

  <name>Maven Compat (deprecated)</name>
  <description>Deprecated Maven2 classes maintained as compatibility layer.</description>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>