Question

I am getting following exception while ftp file over to some other machine.

org.apache.commons.net.io.CopyStreamException: IOException caught while copying.
    at org.apache.commons.net.io.Util.copyStream(Util.java:119)
    at org.apache.commons.net.io.Util.copyStream(Util.java:151)
    at org.apache.commons.net.io.Util.copyStream(Util.java:162)
    at org.apache.commons.net.ftp.FTPClient.__storeFile(FTPClient.java:373)
    at org.apache.commons.net.ftp.FTPClient.storeFile(FTPClient.java:1360)
    at com.fs.ftp.FTPUsingFTPClientApache.startFTP(FTPUsingFTPClientApache.java:40)
    at com.fs.ftp.FTPUsingFTPClientApache.main(FTPUsingFTPClientApache.java:17)

The Code that i am using for FTP is something like :-

FTPClient ftpClient = new FTPClient();
ftpClient.connect("home.abc.com");
ftpClient.login("remote", "guesst12");
int replyCode = ftpClient.getReplyCode();
if(FTPReply.isPositiveCompletion(replyCode)) {
    System.out.println("Connection proper");
}

if(ftpClient.changeWorkingDirectory("share")) {
    System.out.println("Directory Change Succesfull");
}
InputStream input = new FileInputStream(new File("H:/testFile.txt"));
BufferedInputStream inputStrean = new BufferedInputStream(input);
if(ftpClient.storeFile("testFile.txt", input)) {
    System.out.println("File Stored Successfully");
}
input.close();
inputStrean.close();
ftpClient.logout();
ftpClient.disconnect();

The above exception i get at line ftpClient.storeFile("testFile.txt", input).

Am i missing something, or using it not the correct way.

Thanks

Answer 1

Catch that exception, call its getIOException() method to get the exception that caused the problem, an print its stacktrace. That will tell you what IOException caused the copy to fail.