We are going to start from where we left in the previous chapter and increment it.

## About JWT { #about-jwt }

JWT means "JSON Web Tokens".

It's a standard to codify a JSON object in a long dense string without spaces. It looks like this:

```
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c
```

	nameSize   = 100 // Max length of the name field in USTAR format
	prefixSize = 155 // Max length of the prefix field in USTAR format

	// Max length of a special file (PAX header, GNU long name or link).
	// This matches the limit used by libarchive.
	maxSpecialFileSize = 1 << 20
)

// blockPadding computes the number of bytes needed to pad offset up to the

     *
     * @since 22.0 (but only since 33.4.0 in the Android flavor)
     */
    @CanIgnoreReturnValue
    public Builder addAll(IntStream stream) {
      Spliterator.OfInt spliterator = stream.spliterator();
      long size = spliterator.getExactSizeIfKnown();
      if (size > 0) { // known *and* nonempty
        ensureRoomFor(Ints.saturatedCast(size));
      }
      spliterator.forEachRemaining((IntConsumer) this::add);

		tw := &teststringwriter{}
		b := NewWriterSize(tw, BufSize)
		b.WriteString("123456789")   // long string, empty buffer:
		tw.check(t, "", "123456789") // use WriteString
	}
	{
		tw := &teststringwriter{}
		b := NewWriterSize(tw, BufSize)
		b.WriteString("abc")
		tw.check(t, "", "")
		b.WriteString("123456789012345")      // long string, non-empty buffer

	m, ok := b.tryGrowByReslice(len(s))
	if !ok {
		m = b.grow(len(s))
	}
	return copy(b.buf[m:], s), nil
}

// MinRead is the minimum slice size passed to a [Buffer.Read] call by
// [Buffer.ReadFrom]. As long as the [Buffer] has at least MinRead bytes beyond
// what is required to hold the contents of r, [Buffer.ReadFrom] will not grow the
// underlying buffer.
const MinRead = 512

        @Override
        public jakarta.servlet.RequestDispatcher getNamedDispatcher(String name) {
            return null;
        }

        @Override
        public void log(String msg) {
        }

        @Override
        public void log(String message, Throwable throwable) {
        }

        @Override
        public String getServerInfo() {
            return null;
        }

        @Override

        @Override
        public jakarta.servlet.RequestDispatcher getNamedDispatcher(String name) {
            return null;
        }

        @Override
        public void log(String msg) {
        }

        @Override
        public void log(String message, Throwable throwable) {
        }

        @Override
        public String getServerInfo() {
            return null;
        }

        @Override

        when(mockDelegate.getSoTimeout()).thenReturn(35000);
        when(mockDelegate.getConnTimeout()).thenReturn(35000);
        when(mockDelegate.getMaxMpxCount()).thenReturn(10);

        // When
        long dfsTtl = delegatingConfig.getDfsTtl();
        int responseTimeout = delegatingConfig.getResponseTimeout();
        int socketTimeout = delegatingConfig.getSoTimeout();
        int connTimeout = delegatingConfig.getConnTimeout();

  @Override
  Spliterator<@Nullable V> valuesSpliterator() {
    return CollectSpliterators.<@Nullable V>indexed(size(), Spliterator.ORDERED, this::getValue);
  }

  @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;

        cmdList.add("-Dfess.log.path=" + (logFilePath != null ? logFilePath : systemHelper.getLogFilePath()));
        addSystemProperty(cmdList, "fess.log.name", getLogName("fess"), getLogName(StringUtil.EMPTY));
        if (logLevel == null) {
            addSystemProperty(cmdList, "fess.log.level", null, null);
        } else {
            cmdList.add("-Dfess.log.level=" + logLevel);