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https://issues.apache.org/jira/browse/NET-495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607677#comment-13607677
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Andreas B. commented on NET-495:
--------------------------------
Seems to be fixed in commons-net-3.2.jar.
Although there is no exception thrown, I still see the same error in the log
when using -Djavax.net.debug=all.
Log-Output:
=================================
main, called close()
main, called closeInternal(true)
main, SEND TLSv1 ALERT: warning, description = close_notify
Padded plaintext before ENCRYPTION: len = 32
0000: 01 00 80 0B 3F A9 CD FD 8A 6A 26 EB 22 96 76 87 ....?....j&.".v.
0010: 7B 85 48 BC 34 9F 09 09 09 09 09 09 09 09 09 09 ..H.4...........
main, WRITE: TLSv1 Alert, length = 32
[Raw write]: length = 37
0000: 15 03 01 00 20 A0 FA 91 F8 3C 60 ED 1F 53 D8 76 .... ....<`..S.v
0010: B9 29 02 B2 1E A9 27 D7 90 F4 C8 41 99 DF C5 D4 .)....'....A....
0020: D6 C1 8F 18 AD .....
main, called closeSocket(selfInitiated)
main, waiting for close_notify or alert: state 5
[Raw read]: length = 5
0000: 35 30 30 20 4F 500 O
main, Exception while waiting for close javax.net.ssl.SSLException: Unsupported
record version Unknown-48.48
> Unsupported record version Unknown-48.48 - commons-net-3.1.jar
> --------------------------------------------------------------
>
> Key: NET-495
> URL: https://issues.apache.org/jira/browse/NET-495
> Project: Commons Net
> Issue Type: Bug
> Components: FTP
> Affects Versions: 3.1
> Environment: Windows XP, Windows 7, HP-UX
> Reporter: Deepak Pant
> Labels: commons-net-3.1.jar, ftp, ftps
> Attachments: FTPSClient_Error_Dump.txt
>
>
> FTPSClient bundled in "commons-net-3.1.jar" returns "Unsupported record
> version Unknown-48.48" error when I try to FTP a zero byte file. This error
> doesn't come when we use "commons-net-2.0.jar" file.
> javax.net.ssl.SSLException: Unsupported record version Unknown-48.48
> at
> com.sun.net.ssl.internal.ssl.InputRecord.readV3Record(InputRecord.java:375)
> at com.sun.net.ssl.internal.ssl.InputRecord.read(InputRecord.java:360)
> at
> com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:830)
> at
> com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:787)
> at
> com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:75)
> 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:310)
> at org.apache.commons.net.ftp.FTP.__getReply(FTP.java:290)
> at org.apache.commons.net.ftp.FTP.getReply(FTP.java:637)
> at
> org.apache.commons.net.ftp.FTPClient.completePendingCommand(FTPClient.java:1637)
> at org.apache.commons.net.ftp.FTPClient._storeFile(FTPClient.java:599)
> at
> org.apache.commons.net.ftp.FTPClient.__storeFile(FTPClient.java:557)
> at org.apache.commons.net.ftp.FTPClient.storeFile(FTPClient.java:1795)
> at FTPSExample.main(FTPSExample.java:173)
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