# Exception while retrieving instance list from AWS API **URL:** \ **Category:** Elasticsearch\ **Created:** [March 9, 2018, 8:49pm UTC](https://discuss.elastic.co/t/exception-while-retrieving-instance-list-from-aws-api/123345 "2018-03-09T20:49:53Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Amit\_Hora](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_hora/32/45312_2.png) [@Amit\_Hora](https://discuss.elastic.co/u/Amit_Hora)\ **Post date:** [March 9, 2018, 8:49pm UTC](https://discuss.elastic.co/t/exception-while-retrieving-instance-list-from-aws-api/123345/1 "2018-03-09T20:49:53Z")
Hi , I am using same IAM roles for my two opswork stack > > one stack with ES5.4 > > other stack has ES6.2 with 5.4 discovery-ec2 plugin works fine. But with 6.0 i am getting below error java.security.AccessControlException: access denied ("java.util.PropertyPermission" "javax.xml.parsers.DocumentBuilderFactory" "write") at java.security.AccessControlContext.checkPermission(AccessControlContext.java:472) ~[?:1.8.0\_161] at java.security.AccessController.checkPermission(AccessController.java:884) ~[?:1.8.0\_161] at java.lang.SecurityManager.checkPermission(SecurityManager.java:549) ~[?:1.8.0\_161] would appreciate any help. Regards, ---
**Author:** ![Amit\_Hora](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_hora/32/45312_2.png) [@Amit\_Hora](https://discuss.elastic.co/u/Amit_Hora)\ **Post date:** [March 10, 2018, 11:12am UTC](https://discuss.elastic.co/t/exception-while-retrieving-instance-list-from-aws-api/123345/2 "2018-03-10T11:12:01Z")
Can anyone help me here? Regards, ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [March 10, 2018, 11:26am UTC](https://discuss.elastic.co/t/exception-while-retrieving-instance-list-from-aws-api/123345/3 "2018-03-10T11:26:42Z")
Read [this](https://discuss.elastic.co/t/about-the-elasticsearch-category/21) and specifically the "Also be patient" part. Also try with a 6.2.2 version. ---
**Author:** ![Amit\_Hora](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_hora/32/45312_2.png) [@Amit\_Hora](https://discuss.elastic.co/u/Amit_Hora)\ **Post date:** [March 10, 2018, 11:57am UTC](https://discuss.elastic.co/t/exception-while-retrieving-instance-list-from-aws-api/123345/4 "2018-03-10T11:57:52Z")
Appreciate your reply > > be patient, yes one has to be, though i requested again after 14 hours (just one comment to mention , i have not flooded question with requests ) > > try with 6.2 , i made a typo in question. I am trying with 6.2 only > > Thanks, ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [March 10, 2018, 12:13pm UTC](https://discuss.elastic.co/t/exception-while-retrieving-instance-list-from-aws-api/123345/5 "2018-03-10T12:13:46Z")
It's fine to ping after 3 days if you don't get an answer (don't count the weekend as part of the 3 days). Here 14h response delay is not something you can normally expect. Specifically when you post on Friday evening (well depends on your time zone I guess). ---
**Author:** ![Amit\_Hora](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amit_hora/32/45312_2.png) [@Amit\_Hora](https://discuss.elastic.co/u/Amit_Hora)\ **Post date:** [March 10, 2018, 12:17pm UTC](https://discuss.elastic.co/t/exception-while-retrieving-instance-list-from-aws-api/123345/6 "2018-03-10T12:17:39Z")
Will keep in mind from next time. Thanks ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 7, 2018, 12:17pm UTC](https://discuss.elastic.co/t/exception-while-retrieving-instance-list-from-aws-api/123345/7 "2018-04-07T12:17:49Z")
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