)

// errOutOfEntropy indicates that the a source of randomness (PRNG) wasn't able
// to produce enough random data. This is fatal error and should cause a panic.

// ObjectKey is a 256 bit secret key used to encrypt the object.
// It must never be stored in plaintext.
type ObjectKey [32]byte

// GenerateKey generates a unique ObjectKey from a 256 bit external key
// and a source of randomness. If random is nil the default PRNG of the
// system (crypto/rand) is used.
func GenerateKey(extKey []byte, random io.Reader) (key ObjectKey) {
	if random == nil {
		random = rand.Reader
	}

java.nio.file.Files#getFileStore(java.nio.file.Path) @ Use org.elasticsearch.env.Environment.getFileStore() instead, impacted by JDK-8034057

@defaultMessage Use org.elasticsearch.common.Randomness#get for reproducible sources of randomness
java.util.Random#<init>()
java.util.concurrent.ThreadLocalRandom

java.security.MessageDigest#clone() @ use org.elasticsearch.common.hash.MessageDigests

java.util.Collections#EMPTY_MAP
java.util.Collections#EMPTY_SET

java.util.Collections#shuffle(java.util.List) @ Use java.util.Collections#shuffle(java.util.List, java.util.Random) with a reproducible source of randomness

@defaultMessage Avoid creating FilePermission objects directly, but use FilePermissionUtils instead