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asked in Java FTP by (290 points)

I'm using the multiprotocol client class, & I simply replaced the 525 jar in my classpath with the 530 version.

When I connect to a host using explicit FTPS (have not tried other protocols yet), I get the following NPEx:

ERROR [ConnectTask] 27 Sep 2018 22:27:30.068 : 1:Connect[dropbox-ssl.redhat.com:21] failed : null
java.lang.NullPointerException
        at com.enterprisedt.net.ftp.ssl.SSLFTPClient.enableCipherSuites(SSLFTPClient.java:1181)
        at com.enterprisedt.net.ftp.async.internal.ConnectFTPSETask.preConnectConfigure(ConnectFTPSETask.java:229)
        at com.enterprisedt.net.ftp.async.internal.ConnectTask.connect(ConnectTask.java:153)
        at com.enterprisedt.net.ftp.async.internal.ConnectTask.run(ConnectTask.java:216)
        at com.enterprisedt.net.ftp.async.internal.FTPTaskProcessor$b.run(FTPTaskProcessor.java:593)


java.lang.NullPointerException
        at com.enterprisedt.net.ftp.ssl.SSLFTPClient.enableCipherSuites(SSLFTPClient.java:1181)
        at com.enterprisedt.net.ftp.async.internal.ConnectFTPSETask.preConnectConfigure(ConnectFTPSETask.java:229)
        at com.enterprisedt.net.ftp.async.internal.ConnectTask.connect(ConnectTask.java:153)
        at com.enterprisedt.net.ftp.async.internal.ConnectTask.run(ConnectTask.java:216)
        at com.enterprisedt.net.ftp.async.internal.FTPTaskProcessor$b.run(FTPTaskProcessor.java:593)
ERROR [InternalConnectCallback] 27 Sep 2018 22:27:30.070 : Disconnected
null

ERROR [FTPTaskProcessor] 27 Sep 2018 22:27:30.070 : FTPThread[FTPThread_edt_1] - task 1:Connect[dropbox-ssl.redhat.com:21] failed : null
com.enterprisedt.net.ftp.async.internal.a
        at com.enterprisedt.net.ftp.async.internal.ConnectTask.run(ConnectTask.java:271)
        at com.enterprisedt.net.ftp.async.internal.FTPTaskProcessor$b.run(FTPTaskProcessor.java:593)


com.enterprisedt.net.ftp.async.internal.a
        at com.enterprisedt.net.ftp.async.internal.ConnectTask.run(ConnectTask.java:271)
        at com.enterprisedt.net.ftp.async.internal.FTPTaskProcessor$b.run(FTPTaskProcessor.java:593)

If you need me to turn on debug level trace, or you need a simple testcase with source code to show what I'm doing, just let me know!

1 Answer

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answered by (152k points)
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Best answer

I've found the issue and it is a bug in our code. I've now fixed the bug and it is released as 5.3.1. Please download the release from our customer site and that should resolve it for you.

asked Oct 10, 2018 in Java FTP by (270 points)
edited Oct 10, 2018 by
0 votes
Same problem with SecureFiletransferClient - NPEx with Vs 5.3.0

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