Shutdown can happen concurrently with initAndListen, for example if a SIGTERM signal is received while startup is still occurring. Our initialization logic in general does not handle this case, and we see crashes every now and then as a result. BF-35824 is one such example, and as part of fixing it, I tried to add a test and discovered a similar issue with OCSPManager. Rather than fixing this one by one, it may make more sense to holistically ensure that initialization is shutdown-aware.