import static org.apache.maven.api.Lifecycle.Phase.RESOURCES;
import static org.apache.maven.api.Lifecycle.Phase.SOURCES;
import static org.apache.maven.api.Lifecycle.Phase.TEST;
import static org.apache.maven.api.Lifecycle.Phase.TEST_COMPILE;
import static org.apache.maven.api.Lifecycle.Phase.TEST_RESOURCES;
import static org.apache.maven.api.Lifecycle.Phase.TEST_SOURCES;
import static org.apache.maven.api.Lifecycle.Phase.UNIT_TEST;

                    Deque<String> phases = getLifecycles(project);
                    if (!Objects.equals(phase, phases.peekLast())) {
                        phases.addLast(phase);
                        if ("clean".equals(phase)) {
                            cleanProjectLocalRepository(project);
                        }
                    }
                }
                break;
            case ProjectSucceeded:

For a particular application plugin there will be a declarative descriptor for that plugin type.

h3. Some general notes on Nexus

The plugin metadata:
* the plugin class
* UI to contribute
* what JS to hook into the UI
* what resources to load into the UI

        </field>
        <field>
          <name>phase</name>
          <version>1.0.0+</version>
          <type>String</type>
          <description>
            Defines a default phase to bind a Mojo execution to if the user does not explicitly set a phase in the POM.

  public String toString() {
    return map.toString();
  }

  /*
   * ConcurrentMap operations which we may eventually add.
   *
   * The problem with these is that remove(K, long) has to be done in two phases by definition ---
   * first decrementing to zero, and then removing. putIfAbsent or replace could observe the
   * intermediate zero-state. Ways we could deal with this are:
   *

 {{{./xref/org/apache/maven/model/building/DefaultModelBuilder.html}source}})
 that manages the steps sequence.

 The sequence is divided into 2 phases:

 * phase 1

   ** profile activation: see {{{./apidocs/org/apache/maven/model/profile/activation/package-summary.html}available activators}}.

    /**
     * Indicates whether the model building should happen in two phases. If enabled, the initial invocation of the model
     * builder will only produce an interim result which may be used to analyze inter-model dependencies before the
     * final invocation of the model builder is performed.
     *
     * @return {@code true} if two-phase building is enabled, {@code false} if the model should be build in a single

        return onlineRequired;
    }

    /**
     * @return the bound phase name of the Mojo
     */
    public String getPhase() {
        return phase;
    }

    /**
     * @param phase the new bound phase name of the Mojo
     */
    public void setPhase(String phase) {
        this.phase = phase;
    }

    /**
     * @return the version when the Mojo was added to the API

// listSem is a semaphore restricting concurrent invocations of 'go list'. 'go
// list' has its own internal concurrency, so we use a hard-coded constant (to
// allow the I/O-intensive phases of 'go list' to overlap) instead of scaling
// all the way up to GOMAXPROCS.
var listSem = make(chan semToken, 2)

type semToken struct{}

                  <id>sign-artifacts</id>
                  <phase>verify</phase>
                  <goals>
                    <goal>sign</goal>
                  </goals>
                </execution>
              </executions>
            </plugin>
          </plugins>
      </build>
    </profile>
    <profile>
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