@GwtIncompatible("removalListener")
public void testNullCache() {
CountingRemovalListener<Object, Object> listener = countingRemovalListener();
LoadingCache<Object, Object> nullCache =
new CacheBuilder<Object, Object>()
.maximumSize(0)
.removalListener(listener)
.build(identityLoader());
assertEquals(0, nullCache.size());
Object key = new Object();
assertSame(key, nullCache.getUnchecked(key));
assertEquals(1, listener.getCount());
assertEquals(0, nullCache.size());
CacheTesting.checkEmpty(nullCache.asMap());
}
