How to access a file in Unix server from windows using java

I want to access a file in unix server from windows using java program.
I have the following code. I am able to open the url in a web browser.
String urlStr="ftp:user:passwd@unix-server:ftp-port//javatest/test.csv;type=i";
URL url = new URL(urlStr);
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream)));
String inputLine;
while((inputLine=in.readLine()))!=null){
System.out.println(inputLine);
in.close();
I get the following error
java.io.FileNotFoundException: /javatest/test.csv
at sun.net.www.protocol.ftp.FtpURLConnection.getInputStream(FtpURLConnection.java:333)
at java.net.URL.openStream(URL.java:960)
at com.test.samples.Test.main(Test.java:45)

urlStr="ftp:user:passwd@unix-server:ftp-port//javatest/test.csv;type=i";
I have given the format of the urlStr that I am using in the code. The actiual values are used in my code. I have tried pasting this url in the browser and it opens the file.

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