my $ua=LWP::UserAgent->new( keep_alive => 1 );
my $key = 'existing_issue_code'; #this is just for test. You can use any issue you get from web JIRA
$getline=$url . '/rest/api/latest/issue/' . $key;
$request = new HTTP::Request (GET => $getline, HTTP::Headers->new('Cookie'=> $cookie ) );
$answer = $ua->request ($request);