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https://issues.apache.org/jira/browse/NET-692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17219657#comment-17219657
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Gary D. Gregory commented on NET-692:
-------------------------------------
Please update to 3.7.2 and provide a reproducible use case, preferably as a PR
on GitHub.
> apache commons net 关于 FTPS的功能bug
> --------------------------------
>
> Key: NET-692
> URL: https://issues.apache.org/jira/browse/NET-692
> Project: Commons Net
> Issue Type: Bug
> Components: FTP
> Affects Versions: 3.7
> Reporter: zheng qin
> Priority: Major
> Fix For: 3.7.1
>
>
> LiteCA通过apache commons net开源软件，通过FTPS协议对接FTP服务器失败，异常堆栈打印如下：
> javax.net.ssl.SSLException: Unsupported or unrecognized SSL message
> at
> java.base/sun.security.ssl.SSLSocketInputRecord.handleUnknownRecord(Unknown
> Source)
> at java.base/sun.security.ssl.SSLSocketInputRecord.decode(Unknown Source)
> at java.base/sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
> at java.base/sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
> at java.base/sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown
> Source)
> at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
> at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
> at
> org.apache.commons.net.ftp.FTPSClient._openDataConnection_(FTPSClient.java:642)
> at org.apache.commons.net.ftp.FTPClient._retrieveFile(FTPClient.java:1907)
> at org.apache.commons.net.ftp.FTPClient.retrieveFile(FTPClient.java:1893)
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