Delegation Tokens fetched twice upon HadoopFSDelegationTokenProvider creation

Looking for a refactor to HadoopFSDelegationTokenProvider. Within the function obtainDelegationTokens():

This code-block:

val fetchCreds = fetchDelegationTokens(getTokenRenewer(hadoopConf),...)
    // Get the token renewal interval if it is not set. It will only be called once.
    if (tokenRenewalInterval == null) {
      tokenRenewalInterval = getTokenRenewalInterval(...)
}

 calls fetchDelegationTokens() twice since the tokenRenewalInterval will always be null upon creation of the TokenManager which I think is unnecessary in the case of Kubernetes (as you are creating 2 DTs when only one is needed.) Could this possibly be refactored to only call fetchDelegationTokens() once upon startup or to have a param to specify tokenRenewalInterval