System.arraycopy(source, from, result, 0, to - from);
    return result;
  }

  // TODO(user): Move this logic to a utility class.
  @JsType(isNative = true, name = "Array", namespace = JsPackage.GLOBAL)
  private interface NativeArray {
    @JsProperty
    void setLength(int length);
  }

  static MapMaker tryWeakKeys(MapMaker mapMaker) {
    return mapMaker;
  }

import java.util.Iterator;
import java.util.Set;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * This class provides a skeletal implementation of the {@link Multiset} interface. A new multiset
 * implementation can be created easily by extending this class and implementing the {@link
 * Multiset#entrySet()} method, plus optionally overriding {@link #add(Object, int)} and {@link

import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Derived suite generators for Guava collection interfaces, split out of the suite builders so that
 * they are available to GWT.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public final class DerivedGoogleCollectionGenerators {

      }
      return message.toString();
    }
  }

  /**
   * Internal Lock implementations implement the {@code CycleDetectingLock} interface, allowing the
   * detection logic to treat all locks in the same manner.
   */
  private interface CycleDetectingLock {

    /** @return the {@link LockGraphNode} associated with this lock. */
    LockGraphNode getLockGraphNode();

     *            対象のインターフェース
     */
    protected void setupFieldDescsByInterface(final Class<?> interfaceClass) {
        addFieldDescs(interfaceClass);
        final Class<?>[] interfaces = interfaceClass.getInterfaces();
        for (final Class<?> intf : interfaces) {
            setupFieldDescsByInterface(intf);
        }
    }

    /**
     * クラスに定義されたフィールドを準備します。
     *
     * @param targetClass

 *
 * <p>This class does not implement {@link java.util.RandomAccess}. If the delegate supports random
 * access, the {@code ForwardingList} subclass should implement the {@code RandomAccess} interface.
 *
 * <p><b>Warning:</b> The methods of {@code ForwardingList} forward <b>indiscriminately</b> to the
 * methods of the delegate. For example, overriding {@link #add} alone <b>will not</b> change the

 * @since 14.0
 */
@SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
@DoNotMock("Use ImmutableRangeMap or TreeRangeMap")
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public interface RangeMap<K extends Comparable, V> {
  /*
   * TODO(cpovirk): These docs sometimes say "map" and sometimes say "range map." Pick one, or at
   * least decide on a policy for when to use which.
   */

  /**

  private final List<PerListenerQueue<L>> listeners =
      Collections.synchronizedList(new ArrayList<PerListenerQueue<L>>());

  /** Method reference-compatible listener event. */
  interface Event<L> {
    /** Call a method on the listener. */
    void call(L listener);
  }

  /**
   * Adds a listener that will be called using the given executor when events are later {@link

    @Override
    public void visit(ClassOrInterfaceDeclaration classDeclaration, ClassMetaDataRepository<ClassMetaData> repository) {
        visitTypeDeclaration(classDeclaration, repository, classDeclaration.isInterface() ? MetaType.INTERFACE : MetaType.CLASS, () -> {
            visitExtendedTypes(classDeclaration);
            visitImplementedTypes(classDeclaration);
            super.visit(classDeclaration, repository);
        });
    }

    @Override

        }
      }
    } finally {
      if (interrupted) {
        Thread.currentThread().interrupt();
      }
    }
  }

  // TODO(user): Support Sleeper somehow (wrapper or interface method)?
  /**
   * Invokes {@code unit.}{@link TimeUnit#sleep(long) sleep(sleepFor)} uninterruptibly.
   *
   * @since NEXT (but since 28.0 in the JRE flavor)
   */
  @J2ktIncompatible