in src/main/java/software/amazon/encryption/s3/materials/AesKeyring.java [192:201]
public Builder wrappingKey(final SecretKey wrappingKey) {
if (wrappingKey == null) {
throw new S3EncryptionClientException("Wrapping key cannot be null!");
}
if (!wrappingKey.getAlgorithm().equals(KEY_ALGORITHM)) {
throw new S3EncryptionClientException("Invalid algorithm: " + wrappingKey.getAlgorithm() + ", expecting " + KEY_ALGORITHM);
}
_wrappingKey = wrappingKey;
return builder();
}