Konrad Garus created NET-476:
--------------------------------
Summary: FTP parser initialization from invalid line
Key: NET-476
URL: https://issues.apache.org/jira/browse/NET-476
Project: Commons Net
Issue Type: Bug
Components: FTP
Affects Versions: 3.1
Environment: Ubuntu Linux 10.04 amd64, vsftpd 2.2.2
Reporter: Konrad Garus
After upgrading from 1.4.1 to 3.1, we noticed the FTP client sometimes fails to
list files. It seems to occur intermittently, possibly when the system is under
relatively high load and does not respond immediately.
>From stacktraces, it seems like multithreading issues or trying to parse
>system type from reply to another command than SYST:
{code}
Caused by: org.apache.commons.net.ftp.parser.ParserInitializationException:
Unknown parser type: PORT command successful. Consider using PASV.
at
org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory.createFileEntryParser(DefaultFTPFileEntryParserFactory.java:118)
at
org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2359)
at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2142)
at
{code}
{code}
Caused by: org.apache.commons.net.ftp.parser.ParserInitializationException:
Unknown parser type: Directory send OK.
at
org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory.createFileEntryParser(DefaultFTPFileEntryParserFactory.java:118)
at
org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2359)
at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2142)
at
{code}
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