/// <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());
}