Steve
The problem was with TelnetClient's reader thread blocking on read() and
locking up - to be honest, I have yet to figure out exactly what caused
the deadlock, but one of the initial changes I made on the 2.0 branch
was to refactor FTPClient so it extended SocketClient directly, and thus
with no reader thread, the issue does not seem to arise. I think we
would need a detailed examination of TelnetClient to figure out what
were the circumstances that caused it to deadlock in this manner.
Cheers
Rory
Steve Cohen (JIRA) wrote:
[ http://issues.apache.org/jira/browse/NET-61?page=comments#action_12460625 ]
Steve Cohen commented on NET-61:
--------------------------------
Rory, sorry I've been too busy to be involved here, but could you briefly sum
up what the change was? I banged my head on this one for quite awhile when it
was first logged.
[net] FTPClient.listFiles() hangs on Red Hat Linux
--------------------------------------------------
Key: NET-61
URL: http://issues.apache.org/jira/browse/NET-61
Project: Commons Net
Issue Type: Bug
Affects Versions: 1.4 Final
Environment: Operating System: Linux
Platform: PC
Reporter: George Van Treeck
Priority: Blocker
Fix For: 2.0
A Java app that uses FTPClient to download a file from a website to Windows XP
works properly. But, when the same app runs on Linux to download the same file
from the same website, it hangs at listFiles().
Using Java 1.5.0_03 on both the Windows XP and Linux. The version of Linux
used is Fedor Red Hat Linux Core 3 with all the latest updates. The following
segment of code from the program demonstrates the problem:
FTPClient ftp = new FTPClient();
ftp.connect(host);
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
final String ftpStatus = ftp.getReplyString();
ftp.disconnect();
throw new IOException(
"FTP server refused connection. Status: " +
ftpStatus);
}
ftp.login(user, password);
reply = ftp.getReplyCode();
if (!FTPReply.isPositiveCompletion(reply)) {
final String ftpStatus = ftp.getReplyString();
ftp.disconnect();
throw new IOException(
"FTP server refused username/password. Status: " +
ftpStatus);
}
String[] list = ftp.listNames();
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