public boolean isCredentialStoreSupported() {
    if (credentialStoreInfo != null) {
      if (credentialStoreInfo.isSupported() != null) {
        return credentialStoreInfo.isSupported();
      }
    }

    return false;
  }
Indicates if this service supports credential store.
False, it was not specified.

@return true or false
ambari-server/src/main/java/org/apache/ambari/server/state/ServiceInfo.java