}
          return true;
        }
      }
    }
    return false;
  }

  // Views

  @Override
  Set<E> createElementSet() {
    Set<E> delegate = countMap.keySet();
    return new ForwardingSet<E>() {
      @Override
      protected Set<E> delegate() {
        return delegate;
      }

      @Override
      public boolean contains(@CheckForNull Object object) {

        assertArgumentNotEmpty("methodName", methodName);

        return methodDescsCache.containsKey(methodName);
    }

    @Override
    public String[] getMethodNames() {
        return methodDescsCache.keySet().toArray(new String[methodDescsCache.size()]);
    }

    /**
     * {@link PropertyDesc}を返します。
     *
     * @param propertyName
     *            プロパティ名

                    searchRequestBuilder.setQuery(
                            QueryBuilders.termsQuery(docIdField, deleteFileMap.keySet().toArray(new String[deleteFileMap.size()])));
                    searchRequestBuilder.setFetchSource(new String[] { docIdField }, StringUtil.EMPTY_STRINGS);
                    return true;
                }).forEach(m -> {

    for (Object key : keys) {
      remove(key);
    }
  }

  @LazyInit @RetainedWith @CheckForNull Set<K> keySet;

  @Override
  public Set<K> keySet() {
    // does not impact recency ordering
    Set<K> ks = keySet;
    return (ks != null) ? ks : (keySet = new KeySet());
  }

  @LazyInit @RetainedWith @CheckForNull Collection<V> values;

  @Override

      assertEquals(model.containsKey(i), entry != null);
      if (entry != null) {
        assertTrue(test.asMapOfRanges().entrySet().contains(entry));
      }
    }
    for (Range<Integer> range : test.asMapOfRanges().keySet()) {
      assertFalse(range.isEmpty());
    }
  }

  private static void putModel(Map<Integer, Integer> model, Range<Integer> range, int value) {
    for (int i = MIN_BOUND - 1; i <= MAX_BOUND + 1; i++) {

 *       However, the precise conditions for skipping the copy operation are undefined.
 *   <li><b>Warning:</b> a view collection such as {@link ImmutableMap#keySet} or {@link
 *       ImmutableList#subList} may retain a reference to the entire data set, preventing it from
 *       being garbage collected. If some of the data is no longer reachable through other means,

    protected void pushProperties(C context) throws Exception {
        R invokerRequest = context.invokerRequest;
        HashSet<String> sys = new HashSet<>(invokerRequest.systemProperties().keySet());
        invokerRequest.userProperties().entrySet().stream()
                .filter(k -> !sys.contains(k.getKey()))
                .forEach(k -> System.setProperty(k.getKey(), k.getValue()));
        System.setProperty(

        if (random.nextBoolean()) {
          removeMinFromReplica(replica, mmHeap.poll());
        } else {
          removeMaxFromReplica(replica, mmHeap.pollLast());
        }
        for (Integer v : replica.keySet()) {
          assertThat(mmHeap).contains(v);
        }
        assertIntact(mmHeap);
        currentHeapSize--;
        assertEquals(currentHeapSize, mmHeap.size());
      }
    }

        String key = "\\" + domain + "\\" + root;
        if ( !path.equals("\\") ) {
            key += path;
        }

        key = key.toLowerCase(Locale.ROOT);

        Iterator<String> iter = refs.map.keySet().iterator();
        int searchLen = key.length();
        while ( iter.hasNext() ) {
            String cachedKey = iter.next();
            int cachedKeyLen = cachedKey.length();

  }

  @AndroidIncompatible // Android forbids null parent ClassLoader
  public void testClassPathEntries_emptyURLClassLoader_noParent() {
    assertThat(ClassPath.getClassPathEntries(new URLClassLoader(new URL[0], null)).keySet())
        .isEmpty();
  }

  @AndroidIncompatible // Android forbids null parent ClassLoader
  public void testClassPathEntries_urlClassLoader_noParent() throws Exception {
    URL url1 = new URL("file:/a");