/// <exception cref="System.Exception"/> protected internal virtual void VerifyDestroy(DelegationTokenManager tm, Configuration conf) { AbstractDelegationTokenSecretManager sm = tm.GetDelegationTokenSecretManager(); ZKDelegationTokenSecretManager zksm = (ZKDelegationTokenSecretManager)sm; ExecutorService es = zksm.GetListenerThreadPool(); tm.Destroy(); Assert.True(es.IsShutdown()); // wait for the pool to terminate long timeout = conf.GetLong(ZKDelegationTokenSecretManager.ZkDtsmZkShutdownTimeout , ZKDelegationTokenSecretManager.ZkDtsmZkShutdownTimeoutDefault); Thread.Sleep(timeout * 3); Assert.True(es.IsTerminated()); }