An error occurred connecting to the server

[jwolz]

Original report by Anonymous.

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Program stopped working midday, will not connect on either computer. Restarted modems twice, restarted each computer. Stuck in cycle of trying to reconnect every 30 seconds.

An error occured connecting to the server:

java.util.NoSuchElementException
at java.util.StringTokenizer.nextToken(StringTokenizer.java:349)
at gnu.inet.ftp.FtpClientProtocol.pass(FtpClientProtocol.java:263)
at yajhfc.HylaClientManager.forceLogin(HylaClientManager.java:193)
at yajhfc.model.servconn.hylafax.HylaFaxListConnection.connect(HylaFaxListConnection.java:181)
at yajhfc.MainWin$LoginThread.run(MainWin.java:2988)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

YajHFC 0.6.2
Java 1.8.0_221 (Oracle Corporation)
Java(TM) SE Runtime Environment 1.8.0_221-b11
Java HotSpot(TM) 64-Bit Server VM
Mac OS X 10.14.6 (x86_64)

[jwolz]

Original comment by Jonas Wolz (Bitbucket: jonaswolz, GitHub: jwolz).

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You get this error message because the server unexpectedly closed the connection when YajHFC wanted to send the password.
For example, I get this when the HylaFAX server crashes with a SIGSEGV when using PAM authentication on Debian Stretch.

Do you get any messages from HylaFAX in the server’s syslog when this error occurs?

Does logging in to HylaFAX work with plain FTP or other clients?
(For example does it work when you try to do a “ftp 4559” on the command line?)