FTP Client not close local listener socket when command socket channel
encounter "ReadTimeoutExceptoin"
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Key: NET-434
URL: https://issues.apache.org/jira/browse/NET-434
Project: Commons Net
Issue Type: Bug
Components: FTP
Affects Versions: 3.0.1, 2.2
Environment: Red Hat Enterprise Linux Server release 5.6 (Tikanga) x64
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode)
Reporter: zhangyong
FtpClient connect to an ftp server and login successfully, call
ftpClient.listFiles() method to list remote directory,
and ftp server is vsftp and use active mode.
on commons-net-3.0.1 class org.apache.commons.net.ftp.FTPClient at line 680 :
if (!FTPReply.isPositivePreliminary(sendCommand(command, arg)))
{
server.close();
return null;
}
call sendCommand throw an exception blow:
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
at java.io.InputStreamReader.read(InputStreamReader.java:167)
at java.io.BufferedReader.fill(BufferedReader.java:136)
at java.io.BufferedReader.readLine(BufferedReader.java:299)
at java.io.BufferedReader.readLine(BufferedReader.java:362)
at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:299)
at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:500)
class org.apache.commons.net.ftp.FTPClient at line 648 : ServerSocket server =
_serverSocketFactory_.createServerSocket(getActivePort(), 1, getHostAddress());
the local listener socket "server" is not close when sendCommand method throws
exception.
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