java jsch SSH_MSG_DISCONNECT Failed to read binary packet data

问题:

So I use a private key to connect to the sftp server ,so it came back error:

 com.jcraft.jsch.JSchException: SSH_MSG_DISCONNECT: 2 Failed to read binary packet data! 

Here is the code:

    JSch jsch = new JSch();     jsch.addIdentity(new File(privateKey).getAbsolutePath());     session = jsch.getSession(ftpUserName, ftpHost, ftpPort);     LOGGER.debug("Session created.");     if (ftpPassword != null) {         session.setPassword(ftpPassword);     }     Properties config = new Properties();     config.put("StrictHostKeyChecking", "no");     session.setConfig(config);     session.setTimeout(timeout);     session.connect(); 

is there anything in my code or i missed something?thank you.

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