FTPClient completePendingCommand() deadlock stuck freeze

It's strange, that this method hangs or freeze for this method.

I used commons-net 2.2v, don't know if it already solved at 3v. But, i have found that my problem was:
Executing this method before closing the input stream.
Switching them, first closing the input stream and then running completePendingCommand() solved the issue.
+
There are some cases where this method isn't really necessary, beware.

Hoped it helped,
Dor

ParserInitializationException: Error initializing parser

Using apache commons net,
If you are trying to connect using FtpClient but it fails with the above exception.
Try this solution:

FTPClientConfig ftpClientConfig = new FTPClientConfig(FTPClientConfig.SYST_UNIX);

ftpClient.configure(ftpClientConfig);
FTPClientConfig constant list includes many types. For me, this type works.
Dor