* <p>Normally this method leaves the elements at up to {@code index - 1}, inclusive, untouched.
   * Under these circumstances, it returns {@code null}.
   *
   * <p>Occasionally, in order to maintain the heap invariant, it must swap a later element of the
   * list with one before {@code index}. Under these circumstances it returns a pair of elements as
   * a {@link MoveDesc}. The first one is the element that was previously at the end of the heap and

       * requireNonNull is safe because we don't clear nextPermutation until we're done calling this
       * method.
       */
      requireNonNull(nextPermutation);

      int l = findNextL(j);
      Collections.swap(nextPermutation, j, l);
      int n = nextPermutation.size();
      Collections.reverse(nextPermutation.subList(j + 1, n));
    }

    int findNextJ() {
      /*

	// alloc on every call, so we have a clean entry to swap in.
	t := time.Now().Unix()
	e.init.Do(func() {
		e.cached.Store(&AccElem{})
		atomic.StoreInt64(&e.cachedSec, t)
	})
	acc := e.cached.Load()
	if lastT := atomic.LoadInt64(&e.cachedSec); lastT != t {
		// Check if lastT was changed by someone else.
		if atomic.CompareAndSwapInt64(&e.cachedSec, lastT, t) {
			// Now we swap in a new.
			newAcc := &AccElem{}

    }
  };

  /**
   * Models a lock-free array of bits.
   *
   * <p>We use this instead of java.util.BitSet because we need access to the array of longs and we
   * need compare-and-swap.
   */
  static final class LockFreeBitArray {
    private static final int LONG_ADDRESSABLE_BITS = 6;
    final AtomicLongArray data;
    private final LongAdder bitCount;

    LockFreeBitArray(long bits) {

    int i = 0;
    for (Object element : elements) {
      array[i++] = element;
    }
    return array;
  }

  /** Swaps {@code array[i]} with {@code array[j]}. */
  static void swap(Object[] array, int i, int j) {
    Object temp = array[i];
    array[i] = array[j];
    array[j] = temp;
  }

  @CanIgnoreReturnValue
  static Object[] checkElementsNotNull(Object... array) {

    }

    protected void printErrors(C context, boolean showStackTrace, List<Logger.Entry> entries, Logger logger) {
        // if accumulating logger passed, this is "early failure", swap logger for stdErr and use that to emit log
        if (logger instanceof AccumulatingLogger) {
            logger = new SystemLogger(context.invokerRequest.stdErr().orElse(null));
        }

import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Base class for tests for emulated {@link AbstractFuture} that allow subclasses to swap in a
 * different "source Future" for {@link AbstractFuture#setFuture} calls.
 */
@GwtCompatible
@NullUnmarked
abstract class AbstractAbstractFutureTest extends TestCase {
  private TestedFuture<Integer> future;

				epHealth.offlineDuration = prev.offlineDuration
				epHealth.lastHCAt = prev.lastHCAt
				epHealth.latency = prev.latency
			}
			m[t.Endpoint] = epHealth
		}
	}
	// swap out the map
	sys.hc = m
	sys.hMutex.Unlock()
}

func (sys *BucketTargetSys) healthStats() map[string]epHealth {
	sys.hMutex.RLock()
	defer sys.hMutex.RUnlock()
	m := make(map[string]epHealth, len(sys.hc))

pkg runtime/cgo (openbsd-amd64-cgo), type Handle uintptr
pkg strconv, func QuotedPrefix(string) (string, error)
pkg sync/atomic, method (*Value) CompareAndSwap(interface{}, interface{}) bool
pkg sync/atomic, method (*Value) Swap(interface{}) interface{}
pkg syscall (netbsd-386), const SYS_WAIT6 = 481
pkg syscall (netbsd-386), const SYS_WAIT6 ideal-int
pkg syscall (netbsd-386), const WEXITED = 32
pkg syscall (netbsd-386), const WEXITED ideal-int

func uniq(data sort.Interface) (size int) {
	p, l := 0, data.Len()
	if l <= 1 {
		return l
	}
	for i := 1; i < l; i++ {
		if !data.Less(p, i) {
			continue
		}
		p++
		if p < i {
			data.Swap(p, i)
		}
	}
	return p + 1
}

// Remove any duplicates and return unique entries.
func uniqueEntries(paths []string) []string {
	sort.Strings(paths)
	n := uniq(sort.StringSlice(paths))