ruby.rb

unless node['normal']['chef_client']['tomcat_restart'].nil? ## Exception here
  ruby_block "Check if Tomcat need to restart" do
      block do
          if node['normal']['chef_client']['tomcat_restart'] != 0
              node.default['normal']['chef_client']['tomcat_restart'] = node['normal']['chef_client']['tomcat_restart'] - 1
              resources(:service => "tomcat6").run_action(:restart)
          end
      end
  end
end


## Line 1: NoMethodError-------------undefined method `[]' for nil:NilClassCookbook Trace:--------------- C:/chef/cache/cookbooks/...