phaseUpgrades.put("pre-clean", Lifecycle.BEFORE + Lifecycle.Phase.CLEAN);
        phaseUpgrades.put("post-clean", Lifecycle.AFTER + Lifecycle.Phase.CLEAN);

        // Default lifecycle aliases
        phaseUpgrades.put("pre-integration-test", Lifecycle.BEFORE + Lifecycle.Phase.INTEGRATION_TEST);
        phaseUpgrades.put("post-integration-test", Lifecycle.AFTER + Lifecycle.Phase.INTEGRATION_TEST);

        // Site lifecycle aliases

import java.util.List;

/**
 * Compares phases within the context of a specific lifecycle with secondary sorting based on the {@link PhaseId}.
 */
public class PhaseComparator implements Comparator<String> {
    /**
     * The lifecycle phase ordering.
     */
    private final List<String> lifecyclePhases;

    /**
     * Constructor.
     *
     * @param lifecyclePhases the lifecycle phase ordering.
     */

                        + " You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal> or"
                        + " <plugin-group-id>:<plugin-artifact-id>[:<plugin-version>]:<goal>."
                        + " Available lifecycle phases are: " + defaultLifeCycles.getLifecyclePhaseList() + ".");
            }

            if (logger.isDebugEnabled()) {

            Element execution = executions.child("execution").orElse(null);
            Element phase = execution.child("phase").orElse(null);

            assertEquals("pre-clean", phase.textContent(), "Phase should remain as pre-clean for 4.0.0");
        }

        @Test
        @DisplayName("should preserve non-deprecated phases")
        void shouldPreserveNonDeprecatedPhases() throws Exception {
            String pomXml = """

    }

    /**
     * Get lifecycle based on phase
     *
     * @param phase
     * @return
     */
    public Lifecycle get(String phase) {
        return getPhaseToLifecycleMap().get(phase);
    }

    /**
     * We use this to map all phases to the lifecycle that contains it. This is used so that a user can specify the
     * phase they want to execute, and we can easily determine what lifecycle we need to run.

        if (lifecyclePhases.isEmpty()) {
            return Collections.emptyMap();
        }

        Map<String, String> phases = new LinkedHashMap<>();
        for (Map.Entry<String, LifecyclePhase> e : lifecyclePhases.entrySet()) {
            phases.put(e.getKey(), e.getValue().toString());
        }
        return phases;
    }

        </field>
        <field>
          <name>phases</name>
          <version>1.0.0+</version>
          <description>The phase mappings for this lifecycle.</description>
          <association>
            <type>Phase</type>
            <multiplicity>*</multiplicity>
          </association>
        </field>
      </fields>
    </class>
    <class>
      <name>Phase</name>
      <version>1.0.0+</version>

     *   </li>
     *   <li>All attached artifacts in the order they were attached</li>
     * </ul>
     * The contents depend on the current lifecycle phase when this method is called, as artifacts
     * are typically attached during specific phases (e.g., sources jar during package phase).
     *
     * @param project the project to get artifacts for
     * @return an immutable ordered collection of all project artifacts

        }

        for (Phase phase : lifecycleOverlay.getPhases()) {
            String phaseId = defaultLifecycles.getLifeCycles().stream()
                    .flatMap(l -> l.getDelegate().aliases().stream())
                    .filter(a -> phase.getId().equals(a.v3Phase()))
                    .findFirst()
                    .map(a -> a.v4Phase())
                    .orElse(phase.getId());

labels: [ "a:regression", "to-triage" ]
assignees: [ ]
body:
  - type: markdown
    attributes:
      value: |
        Please use our bug report template to report problems with something that has never worked.
        Regressions reports are greatly appreciated during our RC phase and before a final release.
  - type: textarea
    id: current-behavior
    attributes:
      label: Current Behavior