Attempt to copy a file via FTP will cause temporary lockup and create 0 byte
file
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Key: VFS-176
URL: https://issues.apache.org/jira/browse/VFS-176
Project: Commons VFS
Issue Type: Bug
Affects Versions: 1.0
Environment: FtpFileSystem
Reporter: Andrew Franklin
Priority: Minor
The following exception occurred when I tried transferring a file via ftp that
the user did not have read access to. (ie, it has been chmod 400 to another
user).
Commons-vfs will create a 0 byte file in the destination folder, but that file
never grows. Also, no messages are logged at
this time. So it appears to the user that the transfer has frozen, until the
exception is thrown.
I suspect the problem is in commons-net.
Note: this exception is not thrown immediately. It takes a few minutes before
this fires.
Caused by: org.apache.commons.vfs.FileSystemException: Could not copy
"ftp://anonymous:[EMAIL PROTECTED]/pub/20070727.txt" to
"file:///tmp/2007/10/20071011/pub/20070727.txt".
at
org.apache.commons.vfs.provider.AbstractFileObject.copyFrom(AbstractFileObject.java:933)
at com.company.FileObjectUtil.copyFile(FileObjectUtil.java:260)
at com.company.vfs.VfsFileMirror.copyNewFile(VfsFileMirror.java:495)
... 7 more
Caused by: org.apache.commons.vfs.FileSystemException: Could not close the
input stream for file "ftp://anonymous:[EMAIL PROTECTED]/pub/20070727.txt".
at
org.apache.commons.vfs.provider.DefaultFileContent$FileContentInputStream.close(DefaultFileContent.java:565)
at org.apache.commons.vfs.FileUtil.writeContent(FileUtil.java:87)
at org.apache.commons.vfs.FileUtil.copyContent(FileUtil.java:103)
at
org.apache.commons.vfs.provider.AbstractFileObject.copyFrom(AbstractFileObject.java:924)
... 9 more
Caused by: org.apache.commons.net.ftp.FTPConnectionClosedException: FTP
response 421 received. Server closed connection.
at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:321)
at org.apache.commons.net.ftp.FTP.getReply(FTP.java:605)
at
org.apache.commons.net.ftp.FTPClient.completePendingCommand(FTPClient.java:1253)
at
org.apache.commons.vfs.provider.ftp.FTPClientWrapper.completePendingCommand(FTPClientWrapper.java:177)
at
org.apache.commons.vfs.provider.ftp.FtpFileObject$FtpInputStream.onClose(FtpFileObject.java:594)
at
org.apache.commons.vfs.util.MonitorInputStream.close(MonitorInputStream.java:125)
at java.io.BufferedInputStream.close(BufferedInputStream.java:440)
at
org.apache.commons.vfs.util.MonitorInputStream.close(MonitorInputStream.java:115)
at
org.apache.commons.vfs.provider.DefaultFileContent$FileContentInputStream.close(DefaultFileContent.java:561)
... 12 more
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