constraints.NotBlank.message = {item} 不能为空。
constraints.NotEmpty.message = {item} 不能为空。
constraints.ParametersScriptAssert.message = 脚本表达式 "{script}" 不为 true。
constraints.Range.message = {item} 必须在 {min} 到 {max} 之间。
constraints.SafeHtml.message = {item} 包含危险的 HTML 内容。
constraints.ScriptAssert.message = 脚本表达式 "{script}" 不为 true。
constraints.URL.message = {item} 不是有效的URL。
constraints.Required.message = {item} 是必需的。
constraints.TypeInteger.message = {item} 必须是数字。

   */
  public static @Nullable String emptyToNull(@Nullable String string) {
    return Platform.emptyToNull(string);
  }

  /**
   * Returns {@code true} if the given string is null or is the empty string.
   *
   * <p>Consider normalizing your string references with {@link #nullToEmpty}. If you do, you can

        // be ignored; see tryClose comment.
        if (socket == null) {
            socket = new DatagramSocket(lport, laddr);
            thread = new Thread(this, "JCIFS-NameServiceClient");
            thread.setDaemon(true);
            thread.start();
        }
    }

    void tryClose() {
        synchronized (LOCK) {

            /* Yes, there is the potential to drop packets

01-01 12:53:32.818 10999 11090 D OkHttp  : [56 ms] callEnd
```

3. Run tests using gradle

```
$ ANDROID_SDK_ROOT=/Users/myusername/Library/Android/sdk ./gradlew :android-test:connectedCheck -PandroidBuild=true
...
> Task :android-test:connectedDebugAndroidTest
...
11:55:40 V/InstrumentationResultParser: Time: 13.271
11:55:40 V/InstrumentationResultParser:
11:55:40 V/InstrumentationResultParser: OK (12 tests)
...

("option").each(function(){l.push(a(this).text())}),0===l.length){var n=a.trim(a("#"+e.attr("list")).text()).split("\n");a.each(n,function(b,c){l.push(a.trim(c))})}m.remove(),a.formUtils.suggest(e,l)}if(b.length){f||(h["data-validation-optional"]="true"),g=!0;var o=(e.attr("data-validation")||"")+" "+b.join(" ");e.attr("data-validation",a.trim(o)),a.each(h,function(a,b){e.attr(a,b)})}}),g&&e.trigger("html5ValidationAttrsFound"),b||f.filter("input[placeholder]").each(function(){this.__defaultValu...

    @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
    private void workOnQueue() {
      boolean interruptedDuringTask = false;
      boolean hasSetRunning = false;
      try {
        while (true) {
          synchronized (queue) {
            // Choose whether this thread will run or not after acquiring the lock on the first
            // iteration
            if (!hasSetRunning) {

      if (includeAuthorityInRequestLine(request, proxyType)) {
        append(request.url)
      } else {
        append(requestPath(request.url))
      }
      append(" HTTP/1.1")
    }

  /**
   * Returns true if the request line should contain the full URL with host and port (like "GET
   * http://android.com/foo HTTP/1.1") or only the path (like "GET /foo HTTP/1.1").
   */
  private fun includeAuthorityInRequestLine(

      .appendLiteral(':')
      .appendValue(MINUTE_OF_HOUR, 2)
      .optionalStart()
      .appendLiteral(':')
      .appendValue(SECOND_OF_MINUTE, 2)
      .optionalStart()
      .appendFraction(NANO_OF_SECOND, 3, 3, true)
      .toFormatter()

  private val offset = ZoneOffset.systemDefault()

  override fun format(record: LogRecord): String {
    val message = formatMessage(record)

        RenderDataUtil.register(data, "long", 456L);
        assertEquals(456L, data.getDataMap().get("long"));

        RenderDataUtil.register(data, "boolean", true);
        assertEquals(true, data.getDataMap().get("boolean"));

        RenderDataUtil.register(data, "double", 3.14);
        assertEquals(3.14, data.getDataMap().get("double"));
    }

    @Test

      OkHttpClient
        .Builder()
        .connectionPool(poolApi)
        .build()
    val call = client.newCall(Request(addressA.url)) as RealCall
    call.enterNetworkInterceptorExchange(call.request(), true, factory.newChain(call))
    c1.withLock { call.acquireConnectionNoEvents(c1) }

    // Running at time 50, the pool returns that nothing can be evicted until time 150.
    assertThat(pool.closeConnections(50L)).isEqualTo(100L)