Galen O'Sullivan created GEODE-5462:
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             Summary: ClusterDistributionManager.getAdminMemberSet returns 
underlying collection
                 Key: GEODE-5462
                 URL: https://issues.apache.org/jira/browse/GEODE-5462
             Project: Geode
          Issue Type: Bug
          Components: management, membership
            Reporter: Galen O'Sullivan


{{ClusterDistributionManager.getAdminMemberSet()}} returns a reference to the 
underlying (volatile) array. This is used in 
{{GemFireCacheImpl.getAdminMembers()}}, which implements the same method on the 
*public* {{Cache}} API. This means that users are given access to modify the 
cluster's list of admin members through a hidden public API.



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