tests themselves and not the code being tested that needs that access, though there's no
    obvious way to ensure that.

    We could consider arranging things so that only the tests we know need this would get
    the add-opens. Right now that doesn't seem worth the effort, though.
    -->
    <test.add.opens>
      --add-opens java.base/java.lang=ALL-UNNAMED

   * Sets a default value that can be used for any parameter of type {@code type}. Returns this
   * object.
   */
  @CanIgnoreReturnValue
  public <T> NullPointerTester setDefault(Class<T> type, T value) {
    defaults.putInstance(type, checkNotNull(value));
    return this;
  }

  /**
   * Ignore {@code method} in the tests that follow. Returns this object.
   *
   * @since 13.0
   */
  @CanIgnoreReturnValue

	Register map[string]int16
	// Table of register prefix names. These are things like R for R(0) and SPR for SPR(268).
	RegisterPrefix map[string]bool
	// RegisterNumber converts R(10) into arm.REG_R10.
	RegisterNumber func(string, int16) (int16, bool)
	// Instruction is a jump.
	IsJump func(word string) bool
}

// nilRegisterNumber is the register number function for architectures

   * {@linkplain Service.State#TERMINATED terminates} or {@linkplain Service.State#TERMINATED
   * fails}. Subclasses may override this method to supply a custom {@link ScheduledExecutorService}
   * instance. This method is guaranteed to only be called once.
   *
   * <p>By default this returns a new {@link ScheduledExecutorService} with a single thread pool

            this.sem = sem;
            this.host = host;
            this.type = type;
            this.scope = scope;
            this.svr = svr;
            this.tc = tc;
        }

        @Override
        public void run() {
            try {
                this.ans = this.tc.getNameServiceClient().getNbtAllByName(this.host, this.type, this.scope, this.svr);

	}
	if took := time.Since(listStartTime); took > maxIAMLoadOpTime {
		var s strings.Builder
		for k, v := range listedConfigItems {
			s.WriteString(fmt.Sprintf("    %s: %d items\n", k, len(v)))
		}
		logger.Info("listAllIAMConfigItems took %.2fs with contents:\n%s", took.Seconds(), s.String())
	}

	// Loads things in the same order as `LoadIAMCache()`

	bootstrapTraceMsgFirstTime("loading policy documents")

 *       prevent its use, because this would also rule out all ungenerified (pre-JDK1.5) data types.
 *       <b>This may change in the future.</b>
 * </ul>
 *
 * <h3>Other notes</h3>
 *
 * <ul>
 *   <li>All ranges are shallow-immutable.
 *   <li>Instances of this type are obtained using the static factory methods in this class.
 *   <li>Ranges are <i>convex</i>: whenever two values are contained, all values in between them

          <version>2.0.0+</version>
          <code>
    /**
     * Indicates if this proxy is active.
     * To allow interpolation of this field, this method lazily parses
     * the {@link #getActiveString()} value as a boolean and defaults to {@code true}
     * if not set.
     *
     * @return a boolean indicating if this proxy is active
     */
    public boolean isActive() {

    int expectedSize = metadata;
    int buckets = CompactHashing.tableSize(expectedSize);
    this.table = CompactHashing.createTable(buckets);
    setHashTableMask(buckets - 1);

    this.entries = new int[expectedSize];
    this.keys = new Object[expectedSize];
    this.values = new Object[expectedSize];

    return expectedSize;
  }

  @SuppressWarnings("unchecked")

它是最流行且被广泛信任的 Python 框架。被用于构建 Instagram 等系统。

它与关系型数据库（如 MySQL、PostgreSQL）耦合相对紧密，因此若要以 NoSQL 数据库（如 Couchbase、MongoDB、Cassandra 等）作为主要存储引擎并不容易。

它最初用于在后端生成 HTML，而不是创建由现代前端（如 React、Vue.js、Angular）或与之通信的其他系统（如 <abbr title="Internet of Things - 物联网">IoT</abbr> 设备）使用的 API。

### [Django REST Framework](https://www.django-rest-framework.org/) { #django-rest-framework }

Django REST framework 作为一个灵活工具箱而创建，用于在底层使用 Django 构建 Web API，从而增强其 API 能力。