fixed the extra comma on controllers arguments when cookie params are present.

Author: HugoMario

src/main/java/io/swagger/codegen/v3/generators/DefaultCodegenConfig.java

@@ -2932,7 +2932,7 @@ public void addOperationToGroup(String tag, String resourcePath, Operation opera
         co.baseName = tag;
     }
 
-    private void addParentContainer(CodegenModel codegenModel, String name, Schema schema) {
+    protected void addParentContainer(CodegenModel codegenModel, String name, Schema schema) {
         final CodegenProperty codegenProperty = fromProperty(name, schema);
         addImport(codegenModel, codegenProperty.complexType);
         codegenModel.parent = toInstantiationType(schema);
@@ -4194,12 +4194,7 @@ protected void configuresParameterForMediaType(CodegenOperation codegenOperation
             codegenOperation.getContents().add(content);
             return;
         }
-        for (CodegenContent content : codegenContents) {
-            addParemeters(content, codegenOperation.headerParams);
-            addParemeters(content, codegenOperation.queryParams);
-            addParemeters(content, codegenOperation.pathParams);
-            addParemeters(content, codegenOperation.cookieParams);
-        }
+        this.addCodegenContentParemeters(codegenOperation, codegenContents);
         for (CodegenContent content : codegenContents) {
             Collections.sort(content.getParameters(), (CodegenParameter one, CodegenParameter another) -> {
                     if (one.required == another.required){
@@ -4226,6 +4221,15 @@ protected void addParemeters(CodegenContent codegenContent, List<CodegenParamete
         }
     }
 
+    protected void addCodegenContentParemeters(CodegenOperation codegenOperation, List<CodegenContent> codegenContents) {
+        for (CodegenContent content : codegenContents) {
+            addParemeters(content, codegenOperation.headerParams);
+            addParemeters(content, codegenOperation.queryParams);
+            addParemeters(content, codegenOperation.pathParams);
+            addParemeters(content, codegenOperation.cookieParams);
+        }
+    }
+
     protected void setParameterNullable(CodegenParameter parameter, CodegenProperty property) {
         parameter.nullable = property.nullable;
     }

src/main/java/io/swagger/codegen/v3/generators/dotnet/AbstractCSharpCodegen.java

@@ -4,9 +4,11 @@
 import com.github.jknack.handlebars.Lambda;
 import com.google.common.collect.ImmutableMap;
 import io.swagger.codegen.v3.CodegenConstants;
+import io.swagger.codegen.v3.CodegenContent;
 import io.swagger.codegen.v3.CodegenModel;
 import io.swagger.codegen.v3.CodegenOperation;
 import io.swagger.codegen.v3.CodegenProperty;
+import io.swagger.codegen.v3.ISchemaHandler;
 import io.swagger.codegen.v3.generators.DefaultCodegenConfig;
 import io.swagger.codegen.v3.generators.handlebars.csharp.CsharpHelper;
 import io.swagger.codegen.v3.generators.handlebars.lambda.CamelCaseLambda;
@@ -1067,6 +1069,20 @@ public void addHandlebarHelpers(Handlebars handlebars) {
         handlebars.registerHelpers(new CsharpHelper());
     }
 
+    @Override
+    protected void addCodegenContentParemeters(CodegenOperation codegenOperation, List<CodegenContent> codegenContents) {
+        for (CodegenContent content : codegenContents) {
+            addParemeters(content, codegenOperation.headerParams);
+            addParemeters(content, codegenOperation.queryParams);
+            addParemeters(content, codegenOperation.pathParams);
+        }
+    }
+
+    @Override
+    public ISchemaHandler getSchemaHandler() {
+        return new DotNetSchemaHandler(this);
+    }
+
 /*
     TODO: uncomment if/when switching to stream for file upload
     @Override