See the License for the specific language governing permissions and
 limitations under the License.
-->
Contributing to Apache Maven
======================

You have found a bug or you have an idea for a cool new feature? Contributing
code is a great way to give something back to the open source community. Before
you dig right into the code, there are a few guidelines that we need

  </description>

  <properties>
    <!--
    NOTE: Both the ordering (i.e. neither ascending nor descending) and the number of properties is crucial to
    exhibit the bug.
    -->
    <property23>${property22}</property23>
    <property21>${property20}</property21>
    <property19>${property18}</property19>
    <property17>${property16}</property17>
    <property15>${property14}</property15>

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven;

/**
 * Signals an internal error in Maven itself, e.g. a programming bug.
 *
 */
public class InternalErrorException extends MavenExecutionException {

    public InternalErrorException(String message, Throwable cause) {
        super(message, cause);
    }

     * otherwise sorting a list of ComparableVersions() will in some cases throw runtime exception;
     * see Netbeans issues <a href="https://netbeans.org/bugzilla/show_bug.cgi?id=240845">240845</a> and
     * <a href="https://netbeans.org/bugzilla/show_bug.cgi?id=226100">226100</a>
     */
    @Test
    void testMng5568() {
        String a = "6.1.0";
        String b = "6.1.0rc3";

     */
    private static final String FAMILY_OS400 = "os/400";

    /**
     * OpenJDK is reported to call MacOS X "Darwin"
     *
     * @see <a href="https://issues.apache.org/bugzilla/show_bug.cgi?id=44889">bugzilla issue</a>
     * @see <a href="https://issues.apache.org/jira/browse/HADOOP-3318">HADOOP-3318</a>
     */
    private static final String DARWIN = "darwin";

    /**
     * The path separator.

  </scm>
  <organization>
    <name>Codehaus</name>
    <url>http://www.codehaus.org/</url>
  </organization>
  <modules>
    <!--

    Until the bug is fixed in Maven which is pulling in the trunk to the
    appserver build.
    <module>plexus-appserver</module>
    -->
    <module>plexus-archetypes</module>
    <module>plexus-examples</module>

the concept of a project object model (POM), Maven can manage a project's
build, reporting and documentation from a central piece of information.

If you think you have found a bug, please file an issue in the [Maven Issue Tracker][jira].

Documentation
-------------

More information can be found on [Apache Maven Homepage][maven-home].
Questions related to the usage of Maven should be posted on

            return true;
        }

        try (Stream<Path> outputFiles = Files.walk(outputDirectory)) {
            // Not using File#lastModified() to avoid a Linux JDK8 milliseconds precision bug: JDK-8177809.
            long artifactLastModified =
                    Files.getLastModifiedTime(packagedArtifactFile.toPath()).toMillis();

            if (session.getProjectBuildingRequest().getBuildStartTime() != null) {

            clone.currentProject = ThreadLocal.withInitial(() -> current);
            return clone;
        } catch (CloneNotSupportedException e) {
            throw new RuntimeException("Bug", e);
        }
    }

    public Date getStartTime() {
        return request.getStartTime();
    }

    public boolean isParallel() {
        return parallel;
    }

          <required>true</required>
        </field>
      </fields>
    </class>
    <class>
      <name>IssueManagement</name>
      <description>Information about the issue tracking (or bug tracking) system used to manage this
        project.</description>
      <version>4.0.0+</version>
      <fields>
        <field>
          <name>system</name>
          <version>4.0.0+</version>