Call Perl Script from PLSQL Package

Question

I'm new to Perl/Java/PLSQL thing so I'm doing some research on how can I call a perl script from the pl/sql package but unfortunately all I can see is, from Perl calling the Oracle OR setup in the dbms_scheduler.

I need to create a package where I will get file name and it's last modified date from the sftp server, because I will print it in a report.

First, I will create a perl script that will connect to the SFTP server, in order for me to do that, I'll be following this Net::SFTP Module

Then, I will list all the files and it's last modified dates. This is a sample script (sample.pl).

#!/usr/bin/perl
  use strict;
  use warnings;

   my $directory = '/testdir';
   my $modtime = ();
   my $f_detail = ();    
   opendir (DIR, $directory) or die $!;
    
        while (my $file = readdir(DIR)) {
         my $modtime = (stat $file)[9];
         my $timestamp = localtime($modtime);

    $f_detail = $file.' '.$timestamp;
    print "$f_detail\n";
    }
    closedir(DIR);

After that, I need to call the sample.pl from the plsql package. Based on my research, I need to create a Java Stored Procedure, but I don't know how.

Are the procedures just fine? or is there a better way where I can just connect from the PLSQL to SFTP and just what i need?

And can someone help me in the Java Stored Procedure?