Server closed connection without sending any data back

[sherbertpunt]

I am tring to write a new script using use LWP::UserAgent

#!/usr/bin/perl -w
use strict;
use warnings;
use LWP::UserAgent;
use JSON qw( decode_json );
use Data::Dumper;
use Nagios::Plugin;
use FindBin qw($Bin);
use lib "$Bin/../lib";

my $jboss_url = 'http://admin:jboss@10.208.30.77:9990/management/?oper
+ation=resource&name=server-state&include-runtime=true&json.pretty';

my $ua = LWP::UserAgent->new;
   $ua->credentials('10.208.30.77:9990','something','admin','jboss');

my $response = $ua->get ( $jboss_url );
print $response;

my $json = $response->decoded_content;
print Dumper $json;

My problem is i am getting the following error and I am not sure how to fix it..

 ./check_jboss_state.pl
HTTP::Response=HASH(0x1448eb0)$VAR1 = 'Server closed connection withou
+t sending any data back at /usr/local/nagios/perl/lib/Net/HTTP/Method
+s.pm line 345.
';

An Update i have now got it working... and here's how needless to say it was my lack of understanding... In the end I amended

my $jboss_url = 'http://admin:jboss@10.208.30.77:9990/management/?oper
+ation=resource&name=server-state&include-runtime=true&json.pretty';

To

$jboss_url = 'http://10.208.30.77:9990/management/?operation=resource&
+name=server-state&include-runtime=true&json.pretty';

and this

$ua->credentials('10.208.30.77:9990','something','admin','jboss');

to this

$ua->credentials('10.208.30.77:9990','ManagementRealm','admin','jboss'
+);

All is well again

[blue_cowdawg]

Something to consider: some web servers are "agent sensitive". Check out this doco:

             $ua->agent('Checkbot/0.4 ' . $ua->_agent);
             $ua->agent('Checkbot/0.4 ');    # same as above
             $ua->agent('Mozilla/5.0');
             $ua->agent("");                 # don't identify

I'd pick something benign like 'Mozilla/5.0' to set your agent's ID to and you may have more success. I've run into this issue a few times...

[sundialsvc4]

I would start by entering that exact URL-string on a web browser, while running the browser debugger (e.g. Firebug), in order to easily see what is going and coming across the wire.

Next, do the same thing on the server side:   examine the logs.