* Read for instance http://docs.codehaus.org/display/MAVEN/Deterministic+Lifecycle+Planning
 * </p>
 * <p>
 * In their current implementation they are "bolted" onto the lifecycle by separating them
 * into TaskSegments. This class represents the execution context of one such task segment.
 * </p>
 * <p>

       * And, no, defining (final or not) local variables out of the loop still isn't as good
       * because the null check on the theUnsafe object remains inside the loop and
       * BYTE_ARRAY_BASE_OFFSET doesn't get constant-folded.
       *
       * The compiler can treat static final fields as compile-time constants and can constant-fold
       * them while (final or not) local variables are run time values.
       */

   * turn, and does not create any threads of its own.
   *
   * <p>After execution begins on a thread from the {@code delegate} {@link Executor}, tasks are
   * polled and executed from a task queue until there are no more tasks. The thread will not be
   * released until there are no more tasks to run.
   *

                blackListedProjects.add(BuilderCommon.getKey(downstreamProject));
            }
        }
    }

    public void halt() {
        halted = true;
    }

    public boolean isHalted() {
        return halted;
    }

    public boolean isHaltedOrBlacklisted(MavenProject mavenProject) {
        return isBlackListed(mavenProject) || isHalted();
    }

  }

  /**
   * Combines two iterables into a single iterable. The returned iterable has an iterator that
   * traverses the elements in {@code a}, followed by the elements in {@code b}. The source
   * iterators are not polled until necessary.
   *
   * <p>The returned iterable's iterator supports {@code remove()} when the corresponding input
   * iterator supports it.
   *

    static final int DEFAULT_CONN_TIMEOUT = 35000;

    static final int FLAGS_NONE = 0x00;
    static final int FLAGS_LOCK_AND_READ_WRITE_AND_UNLOCK = 0x01;
    static final int FLAGS_RECEIVE_BUFFER_POSTED = 0x02;
    static final int FLAGS_PATH_NAMES_CASELESS = 0x08;
    static final int FLAGS_PATH_NAMES_CANONICALIZED = 0x10;
    static final int FLAGS_OPLOCK_REQUESTED_OR_GRANTED = 0x20;

    static final int FLAGS_NONE                           = 0x00;
    static final int FLAGS_LOCK_AND_READ_WRITE_AND_UNLOCK = 0x01;
    static final int FLAGS_RECEIVE_BUFFER_POSTED          = 0x02;
    static final int FLAGS_PATH_NAMES_CASELESS            = 0x08;
    static final int FLAGS_PATH_NAMES_CANONICALIZED       = 0x10;
    static final int FLAGS_OPLOCK_REQUESTED_OR_GRANTED    = 0x20;

   * the request has become less ready for future requests", i.e. its caches become stale, and
   * requests become more likely to trigger expensive operations (a more extreme case of this
   * example is when a server has just booted, and it is mostly busy with getting itself up to
   * speed).
   *
   * To deal with such scenarios, we add an extra dimension, that of "past underutilization",

 *
 * <p>To post an event, simply provide the event object to the {@link #post(Object)} method. The
 * EventBus instance will determine the type of event and route it to all registered listeners.
 *
 * <p>Events are routed based on their type &mdash; an event will be delivered to any subscriber for
 * any type to which the event is assignable. This includes implemented interfaces, all

   * FluentIterable} in the order specified by {@code comparator}. To produce an {@code
   * ImmutableList} sorted by its natural ordering, use {@code toSortedList(Ordering.natural())}.
   *
   * <p><b>{@code Stream} equivalent:</b> pass {@link ImmutableList#toImmutableList} to {@code
   * stream.sorted(comparator).collect()}.
   *
   * @param comparator the function by which to sort list elements