How to override the permissions in security.policy of ElasticSearch 2.1

Elastic Stack Elasticsearch
1

Hi All, I need to know if we can anyhow override the java permissions enforced by ESPolicy.java class in ElasticSearch 2.1 . I need to use a plugin which generates few keys before being bootstraped in Elasticsearch .

2

This will be possible in 2.2 with plugin security policy https://github.com/elastic/elasticsearch/pull/14108