Azure: POSIX permissions are taking effect in access() method even when authorization is enabled

FileSystem implementation class for azure i.e. NativeAzureFileSystem does not override access(path,mode) method and uses the default implementation from the base class. This base implementaion uses the POSIX permissions to check if the requested user has access to given path or not even when authorization is enabled, which is incorrect.
NativeAzureFileSystem.access() in authorization enabled mode should use the authorization mechanism provided instead of relying on the POSIX permission ons. So the proposal is to override FileSystem.access() method in NativeAzureFileSystem such that it honors the authorization mechanism configured in authorization enabled mode and falls back to POSIX permissions otherwise.