WSO2 API Manager 1.8.0 fails to import Swagger definition - wso2

Question

I'm trying to import Swagger definition in WSO2 AM 1.8.0 while creating new API. But, the import fails with the exceptions in logs as below,
ERROR {JAGGERY.site.blocks.item-design.ajax.import:jag} - org.mozilla.javascript.WrappedException: Wrapped com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Expected EOF at line 1 column 27 (/publisher/site/blocks/item-design/ajax/import.jag#25)
Caused by: com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Expected EOF at line 1 column 27
Caused by: com.google.gson.stream.MalformedJsonException: Expected EOF at line 1 column 27
I'm using below configurations:
Swagger-core_2.11-1.3.12
Swagger-jersey2-jaxrs_2.11-1.3.12
Swagger-annotations-1.3.12
Tomcat 7
JDK 1.7
WSO2 API Manager 1.8.0
I create two simple restful services and add Swagger annotations to them. I can see doc in Swagger UI and can invoke them as well. I verify generated JSON for listing and resources and find it valid. But, when I try to import that definition in WSO2AM, it fails to do so.
What Swagger specification does WSO2 AM 1.8.0 support?
Any help is highly appreciated. Thanks.

Answer 1

I'm able to overcome this problem. The file wso2am-1.8.0\repository\deployment\server\jaggeryapps\publisher\site\blocks\ite‌​m-design\ajax\import.jag has code which sends http requests and fetches json data in loop.
var xhr = new XMLHttpRequest();
for(var i = 0; i < swaggerJson.apis.length; i++){
xhr.open("GET", url + swaggerJson.apis[i].path);
For some reason, it's unable to reuse XMLHttpRequest instance to send subsequent requests. I moved XMLHttpRequest instance creation statement in a for loop and it worked.
//var xhr = new XMLHttpRequest();
for(var i = 0; i < swaggerJson.apis.length; i++){
var xhr = new XMLHttpRequest(); // moved instance creation here
xhr.open("GET", url + swaggerJson.apis[i].path);