* This method delegates to {@link FileInputStream#mark(int)}.
     *
     * @param readlimit the maximum limit of bytes that can be read before the mark position becomes invalid
     */
    @Override
    public synchronized void mark(final int readlimit) {
        fileInputStream.mark(readlimit);
    }

    /**
     * Tests if this input stream supports the mark and reset methods.

        assertSame(transport, asIface);
        SmbTransportInternal asInternal = transport.unwrap(SmbTransportInternal.class);
        assertSame(transport, asInternal);

        // Invalid type should throw
        class OtherTransport implements SmbTransport {
            @Override
            public String getRemoteHostName() {
                return "test";
            }

            @Override

        // Check protocol ID
        final int protocolId = SMBUtil.readInt4(buffer, bufferIndex);
        if (protocolId != TRANSFORM_PROTOCOL_ID) {
            throw new IllegalArgumentException("Invalid transform header protocol ID: 0x" + Integer.toHexString(protocolId));
        }
        bufferIndex += 4;

        // Read signature
        System.arraycopy(buffer, bufferIndex, header.signature, 0, 16);

	}

	// 2. Verify that policy json is validated by server
	invalidPolicyBytes := policyBytes[:len(policyBytes)-1]
	err = s.adm.AddCannedPolicy(ctx, policy1+"invalid", invalidPolicyBytes)
	if err == nil {
		c.Fatalf("invalid policy creation success")
	}

	// 3. Create a user, associate policy and verify access
	accessKey, secretKey := mustGenerateCredentials(c)

                if ((ch & 0xC0) != 0x80) {
                    throw new IOException("Invalid UTF-8 sequence");
                }
                uni[ui] |= (ch & 0x3F) << 6;
                ch = src[si++] & 0xFF;
                uni[ui] |= ch & 0x3F;
                if ((ch & 0xC0) != 0x80 || uni[ui] < 0x800) {
                    throw new IOException("Invalid UTF-8 sequence");
                }
            } else {

        if (dataClass == null) {
            // check transformer name
            if (!getName().equals(accessResultData.getTransformerName())) {
                throw new CrawlerSystemException("Transformer is invalid. Use " + accessResultData.getTransformerName()
                        + ". This transformer is " + getName() + ".");
            }

            final byte[] data = accessResultData.getData();

        void testDecodeHeaderThrowsNdrExceptionForRpcVersion() {
            when(mockBuffer.dec_ndr_small()).thenReturn(4); // Incorrect RPC version
            assertThrows(NdrException.class, () -> message.decode_header(mockBuffer));
        }

        @Test
        @DisplayName("decode_header should throw NdrException for invalid minor RPC version")

        Type2Message type2Message;
        try {
            type2Message = new Type2Message(Base64.getDecoder().decode(challenge));
        } catch (final IOException exception) {
            throw new NTLMEngineException("Invalid NTLM type 2 message", exception);
        }
        final int type2Flags = type2Message.getFlags();

            }
            final int size = Encdec.dec_uint16be(sbuf, 2) & 0xFFFF;
            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);

    int originalSize = collection.size();
    Iterator<E> iterator = collection.iterator();
    Object element = iterator.next();
    // If it's an Entry, it may become invalid once it's removed from the Map. Copy it.
    if (element instanceof Entry) {
      Entry<?, ?> entry = (Entry<?, ?>) element;
      element = mapEntry(entry.getKey(), entry.getValue());
    }