SUMMARY, // at end, list of plugin GAVs along with ANY validation issues
        BRIEF, // each "internal" problem one line next to mojo invocation
        // and at end list of plugin GAVs along with "external" issues
        VERBOSE // at end, list of plugin GAVs along with detailed report of ANY validation issues
    }

    private final Logger logger = LoggerFactory.getLogger(getClass());

    @Override

things.

Some of the ideas are documented in the [Maven Wiki][maven-wiki]
which might be interesting to read and for further discussion.

Getting Started
---------------

+ Make sure you have a [JIRA account](https://issues.apache.org/jira/).
+ Make sure you have a [GitHub account](https://github.com/signup/free).
+ If you're planning to implement a new feature, it makes sense to discuss your changes

    </mailingList>
    <mailingList>
      <name>Maven Issues List</name>
      <subscribe>issues******@****.***</subscribe>
      <unsubscribe>issues******@****.***</unsubscribe>
      <archive>http://mail-archives.apache.org/mod_mbox/maven-issues/</archive>
      <otherArchives>
        <otherArchive>http://www.mail-archive.com/issues@maven.apache.org</otherArchive>

    </mailingList>
    <mailingList>
      <name>Maven Issues List</name>
      <subscribe>issues******@****.***</subscribe>
      <unsubscribe>issues******@****.***</unsubscribe>
      <archive>http://mail-archives.apache.org/mod_mbox/maven-issues/</archive>
      <otherArchives>
        <otherArchive>http://www.mail-archive.com/issues@maven.apache.org</otherArchive>

    }

    /**
     * Test <a href="https://issues.apache.org/jira/browse/MNG-5568">MNG-5568</a> edge case
     * which was showing transitive inconsistency: since A &gt; B and B &gt; C then we should have A &gt; C
     * 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

     */
    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.
     */

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

/**
 */
class DefaultExceptionHandlerTest {
    /**
     * Running Maven under JDK7 may cause connection issues because IPv6 is used by default.
     * <p>
     * e.g running mvn site:run will cause Jetty to fail.
     * </p>
     * <p>
     * The resolution is to add -Djava.net.preferIPv4Stack=true to the command line as documented in

    <url>https://parent.url/trunk</url>
    <connection>http://parent.url/scm</connection>
    <developerConnection>https://parent.url/scm</developerConnection>
  </scm>
  <issueManagement>
    <url>https://parent.url/issues</url>
  </issueManagement>
  <ciManagement>
    <url>https://parent.url/ci</url>
  </ciManagement>
  <distributionManagement>
    <repository>
      <url>https://parent.url/dist</url>
      <id>parent.distros</id>

  <description>Commons Logging is a thin adapter allowing configurable bridging to other,
    well known logging systems.</description>
  <url>http://jakarta.apache.org/commons/logging/</url>
  <issueManagement>
    <url>http://issues.apache.org/bugzilla/</url>
  </issueManagement>
  <ciManagement>
    <notifiers>
      <notifier>
        <configuration>
          <address>******@****.***</address>
        </configuration>

     * We also lock on a given project to forbid a forked lifecycle to be executed concurrently with the project.
     * TODO: ideally, the builder should take care of the ordering in a smarter way
     * TODO: and concurrency issues fixed with MNG-7157
     */
    private class ProjectLock implements AutoCloseable {
        final Lock acquiredAggregatorLock;
        final OwnerReentrantLock acquiredProjectLock;