*
   * <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;
  }

  /**

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

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

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

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

 *
 * @param <InputT> the type of the individual inputs
 * @param <OutputT> the type of the output (i.e. this) future
 */
@GwtCompatible
@SuppressWarnings(
    // Whenever both tests are cheap and functional, it's faster to use &, | instead of &&, ||
    "ShortCircuitBoolean")
abstract class AggregateFuture<InputT extends @Nullable Object, OutputT extends @Nullable Object>
    extends AggregateFutureState<OutputT> {

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)

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)

   * 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) {

    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));

        }

        /** Used heap memory in bytes */
        public long used;
        /** Committed heap memory in bytes */
        public long committed;
        /** Maximum heap memory in bytes */
        public long max;
        /** Heap memory usage percentage */
        public short percent;
    }

    /**
     * Data transfer object representing JVM non-heap memory statistics.
     */

@NullMarked
public final class GcFinalization {
  private GcFinalization() {}

  /**
   * 10 seconds ought to be long enough for any object to be GC'ed and finalized. Unless we have a
   * gigantic heap, in which case we scale by heap size.
   */
  private static long timeoutSeconds() {
    // This class can make no hard guarantees.  The methods in this class are inherently flaky, but