Method openDirectory has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private final byte[] openDirectory(String path) throws IOException
    {
        int req_id = generateNextRequestID();

        TypesWriter tw = new TypesWriter();

Method init has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    @Override
    public void init(String name) throws IOException {
        final DHParameterSpec spec;
        if ("diffie-hellman-group18-sha512".equals(name)) {
            spec = new DHParameterSpec(P18, G);

Method checkHashed has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private final boolean checkHashed(String entry, String hostname)
    {
        if (!entry.startsWith("|1|"))
            return false;

Method get has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public void get(String remoteFiles[], String localTargetDirectory) throws IOException
    {
        Session sess = null;

        if ((remoteFiles == null) || (localTargetDirectory == null))

Method rawToBubblebabbleFingerprint has 30 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    static final private String rawToBubblebabbleFingerprint(byte[] raw)
    {
        final char[] v = "aeiouy".toCharArray();
        final char[] c = "bcdfghklmnprstvzx".toCharArray();

Method fstat has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public SFTPv3FileAttributes fstat(SFTPv3FileHandle handle) throws IOException
    {
        checkHandleValidAndOpen(handle);

        int req_id = generateNextRequestID();

Method decode has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private static byte[] decode(PKCS8EncodedKeySpec keySpec) throws InvalidKeySpecException {
        byte[] encoded = keySpec.getEncoded();
        if (encoded.length != ENCODED_SIZE) {
            throw new InvalidKeySpecException("Key spec is of invalid size");
        }

Method msgChannelExtendedData has 29 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public void msgChannelExtendedData(byte[] msg, int msglen) throws IOException
    {
        if (msglen <= 13)
            throw new IOException("SSH_MSG_CHANNEL_EXTENDED_DATA message has wrong size (" + msglen + ")");

Method calculateKey has 28 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private static byte[] calculateKey(HashForSSH2Types sh, BigInteger K, byte[] H, byte type, byte[] SessionID,
            int keyLength)
    {
        byte[] res = new byte[keyLength];

Method statBoth has 28 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private SFTPv3FileAttributes statBoth(String path, int statMethod) throws IOException
    {
        int req_id = generateNextRequestID();

        TypesWriter tw = new TypesWriter();

Method requestCancelGlobalForward has 28 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public void requestCancelGlobalForward(int bindPort) throws IOException
    {
        RemoteForwardingData rfd = null;

        synchronized (remoteForwardings)

Method parseCLine has 28 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private LenNamePair parseCLine(String line) throws IOException
    {
        /* Minimum line: "xxxx y z" ---> 8 chars */

        long len;

Method run has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

            public void run()
            {
                try
                {
                    receiveLoop();

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Method sendMessage has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

    public void sendMessage(byte[] msg) throws IOException
    {
        if (Thread.currentThread() == receiveThread)
            throw new IOException("Assertion error: sendMessage may never be invoked by the receiver thread!");

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Method verifySignature has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

    private boolean verifySignature(byte[] sig, byte[] hostkey) throws IOException {
        SSHSignature sshSignature;
        if (kxs.np.server_host_key_algo.equals(Ed25519Verify.get().getKeyFormat())) {
            sshSignature = Ed25519Verify.get();
        } else if (kxs.np.server_host_key_algo.equals(ECDSASHA2Verify.ECDSASHA2NISTP256Verify.get().getKeyFormat())) {

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Method requestX11Forwarding has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

    public void requestX11Forwarding(String hostname, int port, byte[] cookie, boolean singleConnection)
            throws IOException
    {
        if (hostname == null)
            throw new IllegalArgumentException("hostname argument may not be null");

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Method waitForGlobalRequestResult has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

    private boolean waitForGlobalRequestResult() throws IOException
    {
        synchronized (channels)
        {
            while ((globalSuccessCounter == 0) && (globalFailedCounter == 0))

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Method uncompress has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

    public byte[] uncompress(byte[] buffer, int start, int[] length) {
        int inflated_end = 0;

        inflate.next_in = buffer;
        inflate.next_in_index = start;

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Method get has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

    public void get(String remoteFiles[], String localTargetDirectory) throws IOException
    {
        Session sess = null;

        if ((remoteFiles == null) || (localTargetDirectory == null))

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Method initialize has 27 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private boolean initialize(String user) throws IOException
    {
        if (!initDone)
        {
            tm.registerMessageHandler(this, 0, 255);