| /* |
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 8026344 |
| * @summary Exercise classes in j.u.c.atomic that use serialization proxies |
| */ |
| |
| import java.util.concurrent.atomic.DoubleAdder; |
| import java.util.concurrent.atomic.DoubleAccumulator; |
| import java.util.concurrent.atomic.LongAdder; |
| import java.util.concurrent.atomic.LongAccumulator; |
| import java.util.function.DoubleBinaryOperator; |
| import java.util.function.LongBinaryOperator; |
| import java.io.ByteArrayOutputStream; |
| import java.io.ByteArrayInputStream; |
| import java.io.DataInputStream; |
| import java.io.Serializable; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.IOException; |
| |
| /** |
| * Basic test to exercise the j.u.c.atomic classes that use serialization |
| * proxies. |
| */ |
| public class Serial { |
| |
| public static void main(String[] args) { |
| testDoubleAdder(); |
| testDoubleAccumulator(); |
| testLongAdder(); |
| testLongAccumulator(); |
| } |
| |
| static void testDoubleAdder() { |
| DoubleAdder a = new DoubleAdder(); |
| a.add(20.1d); |
| DoubleAdder result = echo(a); |
| if (result.doubleValue() != a.doubleValue()) |
| throw new RuntimeException("Unexpected doubleValue"); |
| |
| checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy"); |
| } |
| |
| static void testDoubleAccumulator() { |
| DoubleBinaryOperator plus = (DoubleBinaryOperator & Serializable) (x, y) -> x + y; |
| DoubleAccumulator a = new DoubleAccumulator(plus, 13.9d); |
| a.accumulate(17.5d); |
| DoubleAccumulator result = echo(a); |
| if (result.get() != a.get()) |
| throw new RuntimeException("Unexpected value"); |
| a.reset(); |
| result.reset(); |
| if (result.get() != a.get()) |
| throw new RuntimeException("Unexpected value after reset"); |
| |
| checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAccumulator$SerializationProxy"); |
| } |
| |
| static void testLongAdder() { |
| LongAdder a = new LongAdder(); |
| a.add(45); |
| LongAdder result = echo(a); |
| if (result.longValue() != a.longValue()) |
| throw new RuntimeException("Unexpected longValue"); |
| |
| checkSerialClassName(a, "java.util.concurrent.atomic.LongAdder$SerializationProxy"); |
| } |
| |
| static void testLongAccumulator() { |
| LongBinaryOperator plus = (LongBinaryOperator & Serializable) (x, y) -> x + y; |
| LongAccumulator a = new LongAccumulator(plus, -2); |
| a.accumulate(34); |
| LongAccumulator result = echo(a); |
| if (result.get() != a.get()) |
| throw new RuntimeException("Unexpected value"); |
| a.reset(); |
| result.reset(); |
| if (result.get() != a.get()) |
| throw new RuntimeException("Unexpected value after reset"); |
| |
| checkSerialClassName(a, "java.util.concurrent.atomic.LongAccumulator$SerializationProxy"); |
| } |
| |
| /** |
| * Serialize the given object, returning the reconstituted object. |
| */ |
| @SuppressWarnings("unchecked") |
| static <T extends Serializable> T echo(T obj) { |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| try (ObjectOutputStream oos = new ObjectOutputStream(out)) { |
| oos.writeObject(obj); |
| } catch (IOException e) { |
| throw new RuntimeException("Serialization failed: " + e); |
| } |
| ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray()); |
| try (ObjectInputStream ois = new ObjectInputStream(in)) { |
| return (T) ois.readObject(); |
| } catch (IOException | ClassNotFoundException e) { |
| throw new RuntimeException("Deserialization failed: " + e); |
| } |
| } |
| |
| /** |
| * Checks that the given object serializes to the expected class. |
| */ |
| static void checkSerialClassName(Serializable obj, String expected) { |
| String cn = serialClassName(obj); |
| if (!cn.equals(expected)) |
| throw new RuntimeException(obj.getClass() + " serialized as " + cn |
| + ", expected " + expected); |
| } |
| |
| /** |
| * Returns the class name that the given object serializes as. |
| */ |
| static String serialClassName(Serializable obj) { |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| try (ObjectOutputStream oos = new ObjectOutputStream(out)) { |
| oos.writeObject(obj); |
| } catch (IOException e) { |
| throw new RuntimeException("Serialization failed: " + e); |
| } |
| ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray()); |
| try (DataInputStream dis = new DataInputStream(in)) { |
| dis.readShort(); // STREAM_MAGIC |
| dis.readShort(); // STREAM_VERSION |
| dis.readByte(); // TC_OBJECT |
| dis.readByte(); // TC_CLASSDESC |
| return dis.readUTF(); // className |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |