@get:JvmName("type") val type: MediaType,
  @get:JvmName("parts") val parts: List<Part>,
) : RequestBody() {
  private val contentType: MediaType = "$type; boundary=$boundary".toMediaType()
  private var contentLength = -1L

  @get:JvmName("boundary")
  val boundary: String
    get() = boundaryByteString.utf8()

  /** The number of parts in this multipart body. */
  @get:JvmName("size")
  val size: Int
    get() = parts.size

// FirstBoundaryInString returns the position i of the first boundary in s
// or -1 if s contains no boundary.
func (f Form) FirstBoundaryInString(s string) int {
	return f.firstBoundary(inputString(s), len(s))
}

// NextBoundary reports the index of the boundary between the first and next
// segment in b or -1 if atEOF is false and there are not enough bytes to
// determine this boundary.
func (f Form) NextBoundary(b []byte, atEOF bool) int {

    val body =
      MultipartBody.Builder("123")
        .addPart("Hello, World!".toRequestBody(null))
        .build()
    assertThat(body.boundary).isEqualTo("123")
    assertThat(body.type).isEqualTo(MultipartBody.MIXED)
    assertThat(body.contentType().toString())
      .isEqualTo("multipart/mixed; boundary=123")
    assertThat(body.parts.size).isEqualTo(1)
    assertThat(body.contentLength()).isEqualTo(33L)
    val buffer = Buffer()

	// Single empty part, ended with --boundary immediately after headers.
	{
		name: "single empty part, --boundary",
		sep:  "abc",
		in:   "--abc\r\nFoo: bar\r\n\r\n--abc--",
		want: []headerBody{
			{textproto.MIMEHeader{"Foo": {"bar"}}, ""},
		},
	},

	// Single empty part, ended with \r\n--boundary immediately after headers.
	{
		name: "single empty part, \r\n--boundary",
		sep:  "abc",

  }

  @Test fun testParse() {
    val mediaType = parse("text/plain;boundary=foo;charset=utf-8")
    assertEquals("text", mediaType.type)
    assertEquals("plain", mediaType.subtype)
    assertEquals("UTF-8", mediaType.charsetName())
    assertEquals("text/plain;boundary=foo;charset=utf-8", mediaType.toString())
    assertEquals(mediaType, parse("text/plain;boundary=foo;charset=utf-8"))
    assertEquals(
      mediaType.hashCode(),

import (
	"fmt"
	"io"
	"log"
	"mime"
	"mime/multipart"
	"net/mail"
	"strings"
)

func ExampleNewReader() {
	msg := &mail.Message{
		Header: map[string][]string{
			"Content-Type": {"multipart/mixed; boundary=foo"},
		},
		Body: strings.NewReader(
			"--foo\r\nFoo: one\r\n\r\nA section\r\n" +
				"--foo\r\nFoo: two\r\n\r\nAnd another\r\n" +
				"--foo--\r\n"),
	}

apiVersion: release-notes/v2
kind: bug-fix
area: istioctl
issue:
- 46597
releaseNotes:
- |

    }
    public int getTailSpace() {
        return buf.length - index;
    }
    public byte[] getBuffer() {
        return buf;
    }
    public int align(int boundary, byte value) {
        int n = align(boundary);
        int i = n;
        while (i > 0) {
            buf[index - i] = value;
            i--;
        }
        return n;
    }

        return this.buf.length - this.index;
    }


    public byte[] getBuffer () {
        return this.buf;
    }


    public int align ( int boundary, byte value ) {
        int n = align(boundary);
        int i = n;
        while ( i > 0 ) {
            this.buf[ this.index - i ] = value;
            i--;
        }
        return n;
    }

            }
        }

        @Override
        public Boundary getUpperBoundary() {
            org.eclipse.aether.version.VersionRange.Bound bound = delegate.getUpperBound();
            if (bound == null) {
                return null;
            }
            return new Boundary() {
                @Override
                public Version getVersion() {