pre-calculated execution plan that stays the same during the execution.

      If deciding to add mutable state to this class, it should be at least considered to
      separate this into a separate mutable structure.

    */

    private final List<ExecutionPlanItem> planItem;

    private final Map<String, ExecutionPlanItem> lastMojoExecutionForAllPhases;

        int newNext = CompactHashing.tableGet(newTable, newTableIndex);
        CompactHashing.tableSet(newTable, newTableIndex, oldNext);
        entries[entryIndex] = CompactHashing.maskCombine(hash, newNext, newMask);

        oldNext = CompactHashing.getNext(oldEntry, oldMask);
      }
    }

    this.table = newTable;
    setHashTableMask(newMask);
    return newMask;
  }

   *
   * <p>The default value is {@link ElementOrder#unordered() unordered} for mutable graphs. For
   * immutable graphs, this value is ignored; they always have a {@link ElementOrder#stable()
   * stable} order.
   *
   * @throws IllegalArgumentException if {@code incidentEdgeOrder} is not either {@code
   *     ElementOrder.unordered()} or {@code ElementOrder.stable()}.
   * @since 29.0
   */

   *
   * <p>This method returns a mutable {@code List}. For an {@code ImmutableList}, use {@code
   * Resources.asCharSource(url, charset).readLines()}.
   *
   * @param url the URL to read from
   * @param charset the charset used to decode the input stream; see {@link StandardCharsets} for
   *     helpful predefined constants
   * @return a mutable {@link List} containing all the lines

        int newNext = CompactHashing.tableGet(newTable, newTableIndex);
        CompactHashing.tableSet(newTable, newTableIndex, oldNext);
        entries[entryIndex] = CompactHashing.maskCombine(hash, newNext, newMask);

        oldNext = CompactHashing.getNext(oldEntry, oldMask);
      }
    }

    this.table = newTable;
    setHashTableMask(newMask);
    return newMask;
  }

   *
   * <p>The default value is {@link ElementOrder#unordered() unordered} for mutable graphs. For
   * immutable graphs, this value is ignored; they always have a {@link ElementOrder#stable()
   * stable} order.
   *
   * @throws IllegalArgumentException if {@code incidentEdgeOrder} is not either {@code
   *     ElementOrder.unordered()} or {@code ElementOrder.stable()}.
   * @since 29.0
   */

import org.apache.maven.api.annotations.Nonnull;

import static java.util.Objects.requireNonNull;

/**
 * A thin wrapper for a {@link Path} that serves as "current working directory" value. Hence, this class
 * is mutable (as CWD may be changed), but allows transition only to existing directories.
 */
public final class CWD implements Supplier<Path> {
    /**
     * Creates instance out of {@link Path}.
     */

            .map(ChangelogEntry::getHighlight)
            .filter(Objects::nonNull)
            .collect(Collectors.groupingBy(ChangelogEntry.Highlight::isNotable, Collectors.toList()));

        final List<ChangelogEntry.Highlight> notableHighlights = groupedHighlights.getOrDefault(true, List.of());

    }

    void add(T o) {
      checkNotNull(o);
      if (element == null) {
        this.element = o;
      } else if (extras.isEmpty()) {
        // Replace immutable empty list with mutable list.
        extras = new ArrayList<>(MAX_EXTRAS);
        extras.add(o);
      } else if (extras.size() < MAX_EXTRAS) {
        extras.add(o);
      } else {
        throw multiples(true);
      }
    }

    @Test
    @DisplayName("ltime field is mutable")
    void testLtimeField() {
        TestLocking t = new TestLocking();

        // Initial value
        assertEquals(0L, t.ltime, "ltime should start at 0");

        // Set new value
        long currentTime = System.currentTimeMillis();
        t.ltime = currentTime;
        assertEquals(currentTime, t.ltime, "ltime should be mutable");
    }

    @Test