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Posted to dev@commons.apache.org by bu...@apache.org on 2003/08/11 16:27:08 UTC
DO NOT REPLY [Bug 22304] New: -
FTPClient.listFiles intermittently locks up
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FTPClient.listFiles intermittently locks up
Summary: FTPClient.listFiles intermittently locks up
Product: Commons
Version: 1.0 Final
Platform: All
OS/Version: Other
Status: NEW
Severity: Critical
Priority: Other
Component: Net
AssignedTo: commons-dev@jakarta.apache.org
ReportedBy: matthew@mathworks.com
FTPClient.listFiles intermittently locks up on me, about every couple dozen
times I call it. I can reproduce this with the 1.0 release and with last
night's build. When I attach a debugger and look at the stack traces (below),
I see that DefaultFTPFileListParser.parseFileList calls
BufferedReader.readLine. Is it possible that due to networking hiccups,
readLine isn't getting its end-of-line and it never times out?
Using the 1.0 version:
main:
[1] java.net.SocketInputStream.socketRead0 (native method)
[2] java.net.SocketInputStream.read (null)
[3] sun.nio.cs.StreamDecoder$CharsetSD.readBytes (null)
[4] sun.nio.cs.StreamDecoder$CharsetSD.implRead (null)
[5] sun.nio.cs.StreamDecoder.read (null)
[6] java.io.InputStreamReader.read (null)
[7] java.io.BufferedReader.fill (null)
[8] java.io.BufferedReader.readLine (null)
[9] java.io.BufferedReader.readLine (null)
[10] org.apache.commons.net.ftp.DefaultFTPFileListParser.parseFileList
(DefaultFTPFileListParser.java:397)
[11] org.apache.commons.net.ftp.FTPClient.listFiles
(FTPClient.java:1,933)
[12] org.apache.commons.net.ftp.FTPClient.listFiles
(FTPClient.java:1,964)
[13] org.apache.commons.net.ftp.FTPClient.listFiles
(FTPClient.java:2,020)
Using last night's build:
main:
[1] java.net.SocketInputStream.socketRead0 (native method)
[2] java.net.SocketInputStream.read (null)
[3] sun.nio.cs.StreamDecoder$CharsetSD.readBytes (null)
[4] sun.nio.cs.StreamDecoder$CharsetSD.implRead (null)
[5] sun.nio.cs.StreamDecoder.read (null)
[6] java.io.InputStreamReader.read (null)
[7] java.io.BufferedReader.fill (null)
[8] java.io.BufferedReader.readLine (null)
[9] java.io.BufferedReader.readLine (null)
[10] org.apache.commons.net.ftp.DefaultFTPFileListParser.parseFileList
(DefaultFTPFileListParser.java:395)
[11] org.apache.commons.net.ftp.FTPClient.listFiles
(FTPClient.java:1,985)
[12] org.apache.commons.net.ftp.FTPClient.listFiles
(FTPClient.java:2,016)
[13] org.apache.commons.net.ftp.FTPClient.listFiles
(FTPClient.java:2,072)
Found using Windows 2000 with Sun's 1.4.2 VM.
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