Created attachment 859904 [details]
patch to correct null pointer xmlrpc faults

Systems registered with the --nohardware flag cause a null pointer exception when using the api listActiveSystemsDetails. The SystemHandler.java class does not handle null values for the DMI info, CPU, RAM or Swap and causes a xmlrpc fault: 

XML or text declaration not at start of entity at line 35, column 76, byte 3983 at /usr/lib64/perl5/vendor_perl/XML/Parser.pm line 187
</value></data></array></value></member><member><name>dmi_info</name><value><?xml version="1.0" encoding="UTF-8"?><methodResponse><fault><value><struct><member><name>faultCode</name><value><int>-1</int></value></member><member><name>faultString</name><value><string>java.lang.NullPointerException: null</string></value></member></struct></value></fault></methodResponse>

attaching a patch that correctly sets the structs to empty Hashmaps and instantiates Longs for RAM/Swap. 


Duplicator steps: 

1) register a system with the --nohardware or force register existing systems
2) create a api script to call the system with no records in rhnServerDMI, rhnCPU, etc. 
3) Observe the XMLRPC fault

Sample perl api script for testing

#!/usr/bin/perl -w 

use strict; 
use Frontier::Client; 

my $HOST = 'sat560.sat.lan';
my $USER = 'admin';
my $PASS = 'redhat';

my $client = new Frontier::Client(url => "http://$HOST/rpc/api", debug=>1);
my $session = $client->call('auth.login', $USER, $PASS);

my $ref = [1000010017];
my $foo =  $client->call('system.listActiveSystemsDetails',$session, $ref);