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java.lang.IllegalArgumentException: protocol = ftp host = null

java.lang.IllegalArgumentException: protocol = ftp host = null
at sun.net.spi.DefaultProxySelector.select(DefaultProxySelector.java:176)
at sun.net.www.protocol.ftp.FtpURLConnection.connect(FtpURLConnection.java:226)
at sun.net.www.protocol.ftp.FtpURLConnection.getOutputStream(FtpURLConnection.java:507)
at com.research.ftp.FTPClient.main(FTPClient.java:39)

This exception will be thrown when connecting URL is not correct.


Check the ftp URL:  The format is "ftp//username:password@hostname/destinationfile".  If you may have any questions, please feel free to post a comment I will take a look.

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