if (sharedCacheEnv != null) {
assert sharedCache;
evictor = sharedCacheEnv.evictor;
} else if (sharedCache) {
evictor = new SharedEvictor(this,
evictorWakeupInterval,
"SharedEvictor");
} else {
evictor = new PrivateEvictor(this,
evictorWakeupInterval,