int hashThree = map.hash(keyThree);
    InternalEntry<Object, Object, ?> entryThree =
        segment.newEntryForTesting(keyThree, hashThree, entryTwo);
    segment.setValueForTesting(entryThree, valueThree);

    // alone
    assertNull(segment.removeFromChainForTesting(entryOne, entryOne));

    // head
    assertSame(entryOne, segment.removeFromChainForTesting(entryTwo, entryTwo));

    // middle

    int hashThree = map.hash(keyThree);
    InternalEntry<Object, Object, ?> entryThree =
        segment.newEntryForTesting(keyThree, hashThree, entryTwo);
    segment.setValueForTesting(entryThree, valueThree);

    // alone
    assertNull(segment.removeFromChainForTesting(entryOne, entryOne));

    // head
    assertSame(entryOne, segment.removeFromChainForTesting(entryTwo, entryTwo));

    // middle

       * running under Jelly Bean or higher. But it seems safest to check.
       */
      if (version < jellyBean) {
        return new ThrowingCreator();
      }

      // Don't merge these catch() blocks, let alone use ReflectiveOperationException directly:
      // b/65343391
    } catch (NoSuchFieldException e) {
      // The JELLY_BEAN field doesn't exist because we're running on a version before Jelly Bean :)

 * Factory and utility methods for {@link java.util.concurrent.Executor}, {@link ExecutorService},
 * and {@link java.util.concurrent.ThreadFactory}.
 *
 * @author Eric Fellheimer
 * @author Kyle Littlefield
 * @author Justin Mahoney
 * @since 3.0
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class MoreExecutors {
  private MoreExecutors() {}

  /**

 *
 * <p><b>Warning:</b> The methods of {@code ForwardingNavigableMap} forward <i>indiscriminately</i>
 * to the methods of the delegate. For example, overriding {@link #put} alone <i>will not</i> change
 * the behavior of {@link #putAll}, which can lead to unexpected behavior. In this case, you should
 * override {@code putAll} as well, either providing your own implementation, or delegating to the

 *
 * <p><b>Warning:</b> The methods of {@code ForwardingNavigableMap} forward <i>indiscriminately</i>
 * to the methods of the delegate. For example, overriding {@link #put} alone <i>will not</i> change
 * the behavior of {@link #putAll}, which can lead to unexpected behavior. In this case, you should
 * override {@code putAll} as well, either providing your own implementation, or delegating to the

import javax.annotation.CheckForNull;

/**
 * {@link Table} implementation backed by a map that associates row keys with column key / value
 * secondary maps. This class provides rapid access to records by the row key alone or by both keys,
 * but not by just the column key.
 *
 * <p>The views returned by {@link #column}, {@link #columnKeySet()}, and {@link #columnMap()} have