import java.util.Map;

import javax.security.auth.kerberos.KerberosKey;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.util.Hexdump;

/**
 * Privilege Attribute Certificate (PAC) decoder for Kerberos tickets.
 * Parses and validates PAC data structures containing user authorization information
 * from Active Directory Kerberos tickets.
 */
public class Pac {

All in a way that provided the best development experience for all the developers.

## Requirements { #requirements }

After testing several alternatives, I decided that I was going to use <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">**Pydantic**</a> for its advantages.

		foundData := make(map[string][]byte)
		partDataToVerID := make(map[string][2]string)
		var baseName string
		// versionID ->
		combineFiles := make(map[string][]string)
		decode := func(r io.Reader, file string) ([]byte, error) {
			file = strings.ReplaceAll(file, ":", "_")
			b, err := io.ReadAll(r)
			if err != nil {
				return nil, err
			}
			b, _, minor, err := checkXL2V1(b)

    @Override
    public int getAccessMask() {
        return this.access;
    }

    @Override
    public SID getSID() {
        return this.sid;
    }

    @Override
    public int decode(final byte[] buf, int bi, final int len) {
        this.allow = buf[bi] == (byte) 0x00;
        bi++;
        this.flags = buf[bi++] & 0xFF;
        final int size = SMBUtil.readInt2(buf, bi);
        bi += 2;

                if (ntlm == null) {
                    return;
                }
            } else {
                final String auth = new String(Base64.decode(msg.substring(6)), "US-ASCII");
                int index = auth.indexOf(':');
                String user = index != -1 ? auth.substring(0, index) : auth;

            if (size < 33 || 4 + size > sbuf.length) {
                throw new IOException("Invalid payload size: " + size);
            }
            readn(in, sbuf, 4 + 32, size - 32);
            resp.decode(sbuf, 4);

            if (LogStream.level >= 4) {
                log.println(resp);
                if (LogStream.level >= 6) {
                    Hexdump.hexdump(log, sbuf, 4, n);
                }

                if (ctx != null) {
                    try {
                        ctx.decode(buffer, ncpos, dataLen);
                        contexts[i] = ctx;
                    } catch (Exception e) {
                        throw new SMBProtocolDecodingException(
                                "Failed to decode negotiate context at position " + i + ": " + e.getMessage(), e);
                    }
                }

        when(supplier.get()).thenThrow(new RuntimeException(new SmbUnsupportedOperationException("boom")));

        // Act & Assert: the exception is propagated and interaction recorded once
        RuntimeException thrown = assertThrows(RuntimeException.class, supplier::get);
        assertInstanceOf(SmbUnsupportedOperationException.class, thrown.getCause());

		c.Info.WithContext(ctx),
	)
	if err != nil {
		return ESSUnknown, "", store.ErrNotConnected
	}

	defer resp.Body.Close()

	m := make(map[string]any)
	err = json.NewDecoder(resp.Body).Decode(&m)
	if err != nil {
		return ESSUnknown, "", fmt.Errorf("unable to get ES Server version - json parse error: %v", err)
	}

	if v, ok := m["version"].(map[string]any); ok {
		if ver, ok := v["number"].(string); ok {

		if !algorithm.Available() {
			continue
		}

		checksum, err := hex.DecodeString(checksums[algorithm])
		if err != nil {
			logger.Fatal(errSelfTestFailure, fmt.Sprintf("bitrot: failed to decode %v checksum %s for selftest: %v", algorithm, checksums[algorithm], err))
		}
		var (
			hash = algorithm.New()
			msg  = make([]byte, 0, hash.Size()*hash.BlockSize())
			sum  = make([]byte, 0, hash.Size())
		)