JSCH libraries asking for Kerberos username and password

Kerberos username [kalla]: USER1
Kerberos password for test: PWD

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CODE:

import java.io.File;
import java.io.FileInputStream;
import java.util.Properties;
import org.apache.commons.vfs2.FileObject;
import org.apache.commons.vfs2.FileSystemOptions;
import org.apache.commons.vfs2.Selectors;
import org.apache.commons.vfs2.impl.StandardFileSystemManager;
import org.apache.commons.vfs2.provider.sftp.SftpFileSystemConfigBuilder;

public class GetMyFiles {
	static Properties props;

	public static void main(String[] args) {
		GetMyFiles getMyFiles = new GetMyFiles();
		String propertiesFilename = "C:\\Users\\USER1\\workspace\\Test\\src\\Config.properties";
		String fileToDownload = "FileToBeDownloaded.txt";
		getMyFiles.startFTP(propertiesFilename, fileToDownload);
	}

	public boolean startFTP(String propertiesFilename, String fileToDownload) {
		props = new Properties();
		StandardFileSystemManager manager = new StandardFileSystemManager();
		try {
			props.load(new FileInputStream(propertiesFilename));
			String serverAddress = props.getProperty("serverAddress").trim();
			String userId = props.getProperty("userId").trim();
			String password = props.getProperty("password").trim();
			String remoteDirectory = props.getProperty("remoteDirectory").trim();
			String localDirectory = props.getProperty("localDirectory").trim();
			// Initializes the file manager
			manager.init();
			// Setup our SFTP configuration
			FileSystemOptions opts = new FileSystemOptions();
			SftpFileSystemConfigBuilder.getInstance().setStrictHostKeyChecking(opts, "no");
			SftpFileSystemConfigBuilder.getInstance().setUserDirIsRoot(opts, true);
			SftpFileSystemConfigBuilder.getInstance().setTimeout(opts, 10000);
			// Create the SFTP URI using the host name, userid, password, remote
			// path and file name
			String sftpUri = "sftp://" + userId + ":" + password + "@"
					+ serverAddress + "/" + remoteDirectory + fileToDownload;
			// Create local file object
			String filepath = localDirectory + fileToDownload;
			File file = new File(filepath);
			FileObject localFile = manager.resolveFile(file.getAbsolutePath());
			// Create remote file object
			FileObject remoteFile = manager.resolveFile(sftpUri, opts);
			// Copy local file to sftp server
			localFile.copyFrom(remoteFile, Selectors.SELECT_SELF);
			System.out.println("File download successful");
		} catch (Exception ex) {
			ex.printStackTrace();
			return false;
		} finally {
			manager.close();
		}
		return true;
	}
}

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