}
// Note that this identity-check is intentional. We don't *want* to call actualValue.equals() since that defeats the purpose.
// the implicit "versioning" we have in R_R creates a new wrapper "value" instance for every update.
if (actualValue != null && actualValue != valueToCompare) {
log.unableToCopyEntryForUpdate(getKey());
throw new WriteSkewException("Detected write skew.", key);
}
if (valueToCompare != null && ice == null && !isCreated()) {
// We still have a write-skew here. When this wrapper was created there was an entry in the data container
// (hence isCreated() == false) but 'ice' is now null.
log.unableToCopyEntryForUpdate(getKey());
throw new WriteSkewException("Detected write skew - concurrent removal of entry!", key);
}
}