List<@Nullable Integer> list1 = Lists.newArrayList();
    List<@Nullable Integer> list2 = Lists.newArrayList(1);
    List<@Nullable Integer> list3 = Lists.newArrayList(1, 1);
    List<@Nullable Integer> list4 = Lists.newArrayList(1, 2);
    List<@Nullable Integer> list5 = Lists.newArrayList(1, null, 2);
    List<@Nullable Integer> list6 = Lists.newArrayList(2);
    List<@Nullable Integer> list7 = Lists.newArrayList(nullInt);

        int chunk = (bytes[i++] & 0xFF) << 16 | (bytes[i++] & 0xFF) << 8 | bytes[i++] & 0xFF;
        target.append(alphabet.encode(chunk >>> 18));
        target.append(alphabet.encode((chunk >>> 12) & 0x3F));
        target.append(alphabet.encode((chunk >>> 6) & 0x3F));
        target.append(alphabet.encode(chunk & 0x3F));
      }
      if (i < off + len) {
        encodeChunkTo(target, bytes, i, off + len - i);

```
sudo pip install yq
alias kv-pairify='yq ".configuration[]" | jq ".[]" | jq -r ".name + \"=\" + .value"'
```

Let's take for example a set of 12 compute nodes with an aggregate memory of _1.2TiB_, we need to do following settings for optimal results. Add the following optimal entries for _core-site.xml_ to configure _s3a_ with **MinIO**. Most important options here are

```

  public void testGetOrDefault() {
    LocalCache<Object, Object> map =
        makeLocalCache(createCacheBuilder().concurrencyLevel(1).initialCapacity(1));
    map.put(1, 1);
    assertEquals(1, map.getOrDefault(1, 2));
    assertEquals(2, map.getOrDefault(2, 2));
  }

  public void testPutCausesExpansion() {
    for (int count = 1; count <= 100; count++) {
      LocalCache<Object, Object> map =

  public void testGetOrDefault() {
    LocalCache<Object, Object> map =
        makeLocalCache(createCacheBuilder().concurrencyLevel(1).initialCapacity(1));
    map.put(1, 1);
    assertEquals(1, map.getOrDefault(1, 2));
    assertEquals(2, map.getOrDefault(2, 2));
  }

  public void testPutCausesExpansion() {
    for (int count = 1; count <= 100; count++) {
      LocalCache<Object, Object> map =

          Consider removing it once our release and test scripts are migrated to a recent JDK (17+).
       -->
      <id>javadocs-jdk11-12</id>
      <activation>
        <jdk>[11,13)</jdk>
      </activation>
      <properties>
        <maven-javadoc-plugin.additionalJOptions>--no-module-directories</maven-javadoc-plugin.additionalJOptions>

          Consider removing it once our release and test scripts are migrated to a recent JDK (17+).
       -->
      <id>javadocs-jdk11-12</id>
      <activation>
        <jdk>[11,13)</jdk>
      </activation>
      <properties>
        <maven-javadoc-plugin.additionalJOptions>--no-module-directories</maven-javadoc-plugin.additionalJOptions>

///

```Python hl_lines="8  49  56-57  60-61  70-76"
{!> ../../docs_src/security/tutorial004.py!}
```

////

/// note | "笔记"

查看新的（伪）数据库 `fake_users_db`，就能看到哈希后的密码：`"$2b$12$EixZaYVK1fsbw1ZfbX3OXePaWxn96p36WQoeG6Lruj3vjPGga31lW"`。

///

## 处理 JWT 令牌

导入已安装的模块。

创建用于 JWT 令牌签名的随机密钥。

使用以下命令，生成安全的随机密钥：

<div class="termy">

```console

...

     * CRC(A000A000A000...), CRC(0B000B000B...), CRC(00C000C000C...), CRC(000D000D000D...)
     * and then to XOR them together.  The STRIDE_TABLE enables us to hash an int followed by 12
     * zero bytes (3 ints), while the BYTE_TABLE is for advancing one byte at a time.
     * This algorithm is due to the paper "Everything we know about CRC but [are] afraid to forget"
     * by Kadatch and Jenkins, 2010.
     */