Merge pull request #8297 from swagger-api/authmethods-npe

fixed NPE on `getHasQueryParams` method.

Author: HugoMario

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

@@ -71,6 +71,10 @@ public boolean getHasQueryParams() {
             return true;
         }
 
+        if (authMethods == null || authMethods.isEmpty()) {
+            return false;
+        }
+
         // Check if one of the authMethods is a query param
         for (CodegenSecurity sec : authMethods) {
             if (sec.isKeyInQuery) {