/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package java.io; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; /** * Dynamically loaded implementation for computing serialVersionUID hashes. Public so that users can * add an explicit dependency to force load this class. */ public class SerialVersionUIDDigest implements ObjectStreamClass.Digest { private final MessageDigest digest; SerialVersionUIDDigest() { try { digest = MessageDigest.getInstance("SHA"); } catch (NoSuchAlgorithmException e) { throw new Error(e); } } public byte[] digest(byte[] input) { return digest.digest(input); } }