*
   * <p>This differs from {@code Long.bitCount(x) == 1}, because {@code
   * Long.bitCount(Long.MIN_VALUE) == 1}, but {@link Long#MIN_VALUE} is not a power of two.
   */
  // Whenever both tests are cheap and functional, it's faster to use &, | instead of &&, ||
  @SuppressWarnings("ShortCircuitBoolean")
  public static boolean isPowerOfTwo(long x) {
    return x > 0 & (x & (x - 1)) == 0;
  }

  /**

   *       <li>{@code x} is not a mathematical integer and {@code mode} is {@link
   *           RoundingMode#UNNECESSARY}
   *     </ul>
   */
  @GwtIncompatible // #roundIntermediate
  // Whenever both tests are cheap and functional, it's faster to use &, | instead of &&, ||
  @SuppressWarnings("ShortCircuitBoolean")
  public static int roundToInt(double x, RoundingMode mode) {
    double z = roundIntermediate(x, mode);

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import org.jspecify.annotations.Nullable;

/** Implementations of {@code Futures.catching*}. */
@GwtCompatible
// Whenever both tests are cheap and functional, it's faster to use &, | instead of &&, ||
@SuppressWarnings("ShortCircuitBoolean")
abstract class AbstractCatchingFuture<
        V extends @Nullable Object, X extends Throwable, F, T extends @Nullable Object>

   *
   * <p>This differs from {@code Integer.bitCount(x) == 1}, because {@code
   * Integer.bitCount(Integer.MIN_VALUE) == 1}, but {@link Integer#MIN_VALUE} is not a power of two.
   */
  // Whenever both tests are cheap and functional, it's faster to use &, | instead of &&, ||
  @SuppressWarnings("ShortCircuitBoolean")
  public static boolean isPowerOfTwo(int x) {
    return x > 0 & (x & (x - 1)) == 0;
  }

  /**

import java.util.concurrent.locks.LockSupport;
import org.jspecify.annotations.Nullable;
import sun.misc.Unsafe;

/** Supertype of {@link AbstractFuture} that contains platform-specific functionality. */
// Whenever both tests are cheap and functional, it's faster to use &, | instead of &&, ||
@SuppressWarnings("ShortCircuitBoolean")
@GwtCompatible
@ReflectionSupport(value = ReflectionSupport.Level.FULL)

 * should rarely override other methods.
 *
 * @author Sven Mawson
 * @author Luke Sandberg
 * @since 1.0
 */
// Whenever both tests are cheap and functional, it's faster to use &, | instead of &&, ||
@SuppressWarnings("ShortCircuitBoolean")
@GwtCompatible
/*
 * TODO(cpovirk): Do we still need @ReflectionSupport on *this* class now that the fields live in

   * optimization for the case that guardToSkip.isSatisfied() may be expensive.
   *
   * <p>We decided against using this method, since in practice, isSatisfied() is likely to be very
   * cheap (typically one field read). Resurrect this method if you find that not to be true.
   */
  //   @GuardedBy("lock")
  //   private void signalNextWaiterSkipping(Guard guardToSkip) {

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      Heap heap;
      if (crossOver == index) {
        heap = this;
      } else {
        index = crossOver;
        heap = otherHeap;
      }
      heap.bubbleUpAlternatingLevels(index, x);
    }

    /**
     * Bubbles a value from {@code index} up the levels of this heap, and returns the index the
     * element ended up at.
     */
    @CanIgnoreReturnValue

    assertEquals(3, mmHeap.size());
    assertTrue("Heap is not intact after remove()", mmHeap.isIntact());
    assertTrue("Heap contains two 1's", mmHeap.contains(1));
    assertTrue("Heap contains two 1's", mmHeap.remove(1));
    assertTrue("Heap contains 1", mmHeap.contains(1));
    assertTrue("Heap contains 1", mmHeap.remove(1));
    assertFalse("Heap does not contain 1", mmHeap.contains(1));