SFTPv3Client has 42 methods (exceeds 20 allowed). Consider refactoring.

Open

public class SFTPv3Client
{
    final Connection conn;
    final Session sess;
    final PrintStream debug;

Method authenticatePublicKey has 136 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public boolean authenticatePublicKey(String user, KeyPair pair, SecureRandom rnd, SignatureProxy signatureProxy)
            throws IOException
    {
        PrivateKey privateKey = null;
        PublicKey publicKey = null;

Method authenticatePublicKey has a Cognitive Complexity of 34 (exceeds 5 allowed). Consider refactoring.

Open

    public boolean authenticatePublicKey(String user, KeyPair pair, SecureRandom rnd, SignatureProxy signatureProxy)
            throws IOException
    {
        PrivateKey privateKey = null;
        PublicKey publicKey = null;

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Method run has a Cognitive Complexity of 31 (exceeds 5 allowed). Consider refactoring.

Open

    public void run()
    {
        try
        {
            /* Send Open Confirmation */

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Method run has 111 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public void run()
    {
        try
        {
            /* Send Open Confirmation */

Method close has a Cognitive Complexity of 29 (exceeds 5 allowed). Consider refactoring.

Open

    public void close(Throwable cause, boolean useDisconnectPacket)
    {
        if (!useDisconnectPacket)
        {
            /* OK, hard shutdown - do not aquire the semaphore,

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Method getChannelData has a Cognitive Complexity of 29 (exceeds 5 allowed). Consider refactoring.

Open

    public int getChannelData(Channel c, boolean extended, byte[] target, int off, int len) throws IOException
    {
        int copylen = 0;
        int increment = 0;
        int remoteID = 0;

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Method waitForCondition has a Cognitive Complexity of 29 (exceeds 5 allowed). Consider refactoring.

Open

    public int waitForCondition(Channel c, long timeout, int condition_mask)
    {
        long end_time = 0;
        boolean end_time_set = false;

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Method parsePEM has a Cognitive Complexity of 28 (exceeds 5 allowed). Consider refactoring.

Open

    public static final PEMStructure parsePEM(char[] pem) throws IOException
    {
        PEMStructure ps = new PEMStructure();

        String line = null;

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Method decode has a Cognitive Complexity of 28 (exceeds 5 allowed). Consider refactoring.

Open

    public static byte[] decode(char[] message) throws IOException
    {
        byte buff[] = new byte[4];
        byte dest[] = new byte[message.length];

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Method addIdentity has 101 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    private void addIdentity(TypesReader tr, boolean checkConstraints) {
        try
        {
            if (failWhenLocked())
                return;

Method run has 96 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    @Override
    public void run()
    {
        try
        {

Method generateWorkingKey has a Cognitive Complexity of 26 (exceeds 5 allowed). Consider refactoring.

Open

    protected int[] generateWorkingKey(boolean encrypting, byte[] key, int off)
    {
        int[] newKey = new int[32];
        boolean[] pc1m = new boolean[56], pcr = new boolean[56];

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Method receiveFiles has a Cognitive Complexity of 26 (exceeds 5 allowed). Consider refactoring.

Open

    private void receiveFiles(Session sess, String[] files, String target) throws IOException
    {
        byte[] buffer = new byte[8192];

        OutputStream os = new BufferedOutputStream(sess.getStdin(), 512);

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Method receiveLoop has 87 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    public void receiveLoop() throws IOException
    {
        byte[] msg = new byte[35004];

        while (true)

Method sendMessage has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.

Open

    public void sendMessage(byte[] message, int off, int len, int padd) throws IOException
    {
        if (padd < 4)
            padd = 4;
        else if (padd > 64)

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Method addIdentity has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.

Open

    private void addIdentity(TypesReader tr, boolean checkConstraints) {
        try
        {
            if (failWhenLocked())
                return;

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Method receiveFiles has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.

Open

    private void receiveFiles(Session sess, OutputStream[] targets) throws IOException
    {
        byte[] buffer = new byte[8192];

        OutputStream os = new BufferedOutputStream(sess.getStdin(), 512);

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Method scanDirectory has a Cognitive Complexity of 23 (exceeds 5 allowed). Consider refactoring.

Open

    private final Vector scanDirectory(byte[] handle) throws IOException
    {
        Vector files = new Vector();

        while (true)

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Method sendData has a Cognitive Complexity of 23 (exceeds 5 allowed). Consider refactoring.

Open

    public void sendData(Channel c, byte[] buffer, int pos, int len) throws IOException
    {
        while (len > 0)
        {
            int thislen = 0;

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