* Immutable empty instances are returned for collection types; {@code ""} for string; {@code 0} for
 * number types; reasonable default instance for other stateless types. For mutable types, a fresh
 * instance is created each time {@code get()} is called.
 *
 * @author Kevin Bourrillion
 * @author Ben Yu
 * @since 12.0
 */
@GwtIncompatible
@J2ktIncompatible
@NullMarked
public final class ArbitraryInstances {

      executorService.execute(
          () -> {
            lock.lock();
            try {
              startUp();
              /*
               * requireNonNull is safe because executorService is never cleared after the
               * assignment above.
               */
              requireNonNull(executorService);
              runningTask = scheduler().schedule(delegate, executorService, task);

 * "value" of a successful step or the "result" (value or exception) of any step.
 *
 * <ol>
 *   <li>A pipeline starts at its leaf step (or steps), which is created from either a callable
 *       block or a {@link ListenableFuture}.
 *   <li>Each other step is derived from one or more input steps. At each step, zero or more objects
 *       can be captured for later closing.

    /** The key of the message: Status */
    public static final String LABELS_AVAILABLE = "{labels.available}";

    /** The key of the message: Created By */
    public static final String LABELS_CREATED_BY = "{labels.createdBy}";

    /** The key of the message: Created Time */
    public static final String LABELS_CREATED_TIME = "{labels.createdTime}";

    /** The key of the message: Depth */

  }

  /**
   * Returns a view of the given character sequence as a {@link CharSource}. The behavior of the
   * returned {@code CharSource} and any {@code Reader} instances created by it is unspecified if
   * the {@code charSequence} is mutated while it is being read, so don't do that.
   *
   * @since 15.0 (since 14.0 as {@code CharStreams.asCharSource(String)})
   */

  }

  /**
   * Returns a view of the given character sequence as a {@link CharSource}. The behavior of the
   * returned {@code CharSource} and any {@code Reader} instances created by it is unspecified if
   * the {@code charSequence} is mutated while it is being read, so don't do that.
   *
   * @since 15.0 (since 14.0 as {@code CharStreams.asCharSource(String)})
   */

    public Artifact replaceWithActiveArtifact(Artifact pluginArtifact) {
        return pluginArtifact;
    }

    /**
     * Gets the project building request from which this project instance was created. <strong>Warning:</strong> This is
     * a utility method that is meant to assist integrators of Maven, it must not be used by Maven plugins.
     *
     * @return The project building request or {@code null}.

     */
    boolean isStrictResourceLifecycle();

    /**
     * This is solely intended for debugging
     *
     * @return whether to track the locations from which resources were created
     */
    boolean isTraceResourceUsage();

    /**
     * Checks if compound requests are allowed for the specified command
     *
     * @param command the SMB command to check

        }

        @Test
        @DisplayName("Should have initial zero state")
        void shouldHaveInitialZeroState() {
            // Given - newly created instance
            FileFsFullSizeInformation freshInfo = new FileFsFullSizeInformation();

            // Then
            assertEquals(0L, freshInfo.getCapacity());
            assertEquals(0L, freshInfo.getFree());

                cache.getUnchecked("b");
                computationComplete.countDown();
              }
            })
        .start();

    // wait for the computingEntry to be created
    computationStarted.await();
    cache.invalidateAll();
    // let the computation proceed
    computingLatch.countDown();
    // don't check cache.size() until we know the get("b") call is complete