1 /* 2 * Copyright (C) 2007 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.testing; 18 19 import static com.google.common.base.Preconditions.checkNotNull; 20 import static java.util.Objects.requireNonNull; 21 22 import com.google.common.annotations.GwtCompatible; 23 import java.io.ByteArrayInputStream; 24 import java.io.ByteArrayOutputStream; 25 import java.io.IOException; 26 import java.io.ObjectInputStream; 27 import java.io.ObjectOutputStream; 28 29 /** 30 * Methods factored out so that they can be emulated differently in GWT. 31 * 32 * @author Chris Povirk 33 */ 34 @GwtCompatible(emulated = true) 35 @ElementTypesAreNonnullByDefault 36 final class Platform { 37 /** Serializes and deserializes the specified object. */ 38 @SuppressWarnings("unchecked") reserialize(T object)39 static <T> T reserialize(T object) { 40 checkNotNull(object); 41 ByteArrayOutputStream bytes = new ByteArrayOutputStream(); 42 try { 43 ObjectOutputStream out = new ObjectOutputStream(bytes); 44 out.writeObject(object); 45 ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(bytes.toByteArray())); 46 return (T) requireNonNull(in.readObject()); 47 } catch (IOException | ClassNotFoundException e) { 48 throw new RuntimeException(e); 49 } 50 } 51 Platform()52 private Platform() {} 53 } 54