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/*
* Copyright (c) 2003, 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 4838379
* @summary Verify that unshared write and read operations work properly with
* enum constants.
*/
import java.io.*;
enum Foo { foo, bar, baz }
abstract class WriteReadTest {
abstract void write(ObjectOutputStream out) throws Exception;
abstract void read(ObjectInputStream in) throws Exception;
void run() throws Exception {
ByteArrayOutputStream bout = new ByteArrayOutputStream();
ObjectOutputStream oout = new ObjectOutputStream(bout);
write(oout);
oout.close();
read(new ObjectInputStream(
new ByteArrayInputStream(bout.toByteArray())));
}
}
public class Test {
public static void main(String[] args) throws Exception {
WriteReadTest[] tests = {
new WriteReadTest() {
void write(ObjectOutputStream out) throws Exception {
out.writeObject(Foo.foo);
out.writeObject(Foo.foo);
}
void read(ObjectInputStream in) throws Exception {
Object obj = in.readObject();
if (obj != Foo.foo) {
throw new Error(
"expected " + Foo.foo + " instead of " + obj);
}
try {
obj = in.readUnshared();
throw new Error(
"read of " + obj + " should not have succeeded");
} catch (ObjectStreamException e) {
System.out.println("caught expected exception " + e);
}
}
},
new WriteReadTest() {
void write(ObjectOutputStream out) throws Exception {
out.writeObject(Foo.foo);
out.writeObject(Foo.foo);
}
void read(ObjectInputStream in) throws Exception {
Object obj = in.readUnshared();
if (obj != Foo.foo) {
throw new Error(
"expected " + Foo.foo + " instead of " + obj);
}
try {
obj = in.readObject();
throw new Error(
"read of " + obj + " should not have succeeded");
} catch (ObjectStreamException e) {
System.out.println("caught expected exception " + e);
}
}
},
new WriteReadTest() {
void write(ObjectOutputStream out) throws Exception {
out.writeObject(Foo.foo);
out.writeUnshared(Foo.foo);
}
void read(ObjectInputStream in) throws Exception {
Object obj = in.readUnshared();
if (obj != Foo.foo) {
throw new Error(
"expected " + Foo.foo + " instead of " + obj);
}
obj = in.readUnshared();
if (obj != Foo.foo) {
throw new Error(
"expected " + Foo.foo + " instead of " + obj);
}
}
},
new WriteReadTest() {
void write(ObjectOutputStream out) throws Exception {
out.writeUnshared(Foo.foo);
out.writeObject(Foo.foo);
}
void read(ObjectInputStream in) throws Exception {
Object obj = in.readUnshared();
if (obj != Foo.foo) {
throw new Error(
"expected " + Foo.foo + " instead of " + obj);
}
obj = in.readUnshared();
if (obj != Foo.foo) {
throw new Error(
"expected " + Foo.foo + " instead of " + obj);
}
}
}
};
for (int i = 0; i < tests.length; i++) {
tests[i].run();
}
}
}
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