Fix syntax error when there are no authMethods

modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultGenerator.java

@@ -218,7 +218,11 @@ public class DefaultGenerator extends AbstractGenerator implements Generator {
             bundle.put("models", allModels);
             bundle.put("apiFolder", config.apiPackage().replace('.', File.separatorChar));
             bundle.put("modelPackage", config.modelPackage());
-            bundle.put("authMethods", config.fromSecurity(swagger.getSecurityDefinitions()));
+            List<CodegenSecurity> authMethods = config.fromSecurity(swagger.getSecurityDefinitions());
+            if (!authMethods.isEmpty()) {
+                bundle.put("authMethods", authMethods);
+                bundle.put("hasAuthMethods", true);
+            }
             if (swagger.getExternalDocs() != null) {
                 bundle.put("externalDocs", swagger.getExternalDocs());
             }

modules/swagger-codegen/src/main/resources/ruby/swagger/request.mustache

@@ -30,10 +30,12 @@ module {{moduleName}}
         self.path = path
 
         attributes.each { |name, value| send "#{name}=", value }
-
+        {{#hasAuthMethods}}
         update_params_for_auth!
+        {{/hasAuthMethods}}
       end
 
+      {{#hasAuthMethods}}
       # Update hearder and query params based on authentication settings.
       def update_params_for_auth!
         (@auth_names || []).each do |auth_name|
@@ -48,6 +50,7 @@ module {{moduleName}}
           end
         end
       end
+      {{/hasAuthMethods}}
 
       # Get API key (with prefix if set).
       # @param [String] param_name the parameter name of API key auth

samples/client/petstore/ruby/lib/petstore/swagger/request.rb

@@ -32,8 +32,10 @@ module Petstore
         attributes.each { |name, value| send "#{name}=", value }
         
         update_params_for_auth!
+        
       end
 
+      
       # Update hearder and query params based on authentication settings.
       def update_params_for_auth!
         (@auth_names || []).each do |auth_name|
@@ -48,6 +50,7 @@ module Petstore
         end
       end
       
+
       # Get API key (with prefix if set).
       # @param [String] param_name the parameter name of API key auth
       def get_api_key_with_prefix(param_name)