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/*
* Copyright (c) 1998, 2017, 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 4100915
* @summary Verify that [write/read]ObjectOverride methods get called.
* Test verifies that ALL methods to write an object can
* be overridden. However, the testing for reading an object
* is incomplete. Only test that readObjectOverride is called.
* An entire protocol would need to be implemented and written
* out before being able to test the input side of the API.
*
* Also, would be appropriate that this program verify
* that if SerializablePermission "enableSubclassImplementation"
* is not in the security policy and security is enabled, that
* a security exception is thrown when constructing the
* ObjectOutputStream subclass.
*
*
* @compile AbstractObjectInputStream.java AbstractObjectOutputStream.java
* @compile XObjectInputStream.java XObjectOutputStream.java
* @compile SubclassTest.java
* @run main SubclassTest
* @run main/othervm/policy=Allow.policy SubclassTest -expectSecurityException
*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamField;
import java.io.Serializable;
/**
* Test if customized readObject and writeObject are called.
*/
class B implements Serializable {
public int publicIntField;
public static int numWriteObjectCalled = 0;
B(int v) {
publicIntField = v;
}
private void writeObject(ObjectOutputStream os) throws IOException {
numWriteObjectCalled++;
os.defaultWriteObject();
}
private void readObject(ObjectInputStream is)
throws IOException, ClassNotFoundException
{
is.defaultReadObject();
}
};
/**
* Test PutFields interface.
*/
class C implements Serializable {
public int xx1;
public int xx2;
static final ObjectStreamField[] serialPersistentFields = {
new ObjectStreamField("x1", Integer.TYPE),
new ObjectStreamField("x2", Integer.TYPE),
new ObjectStreamField("x3", Integer.TYPE),
new ObjectStreamField("x4", Integer.TYPE)
};
C() {
xx1 = 300;
xx2 = 400;
}
private void writeObject(ObjectOutputStream os) throws IOException {
ObjectOutputStream.PutField putFields = os.putFields();
putFields.put("x1", xx1);
putFields.put("x2", xx2);
putFields.put("x3", xx1 * 2);
putFields.put("x4", xx2 * 2);
os.writeFields();
}
};
class A implements Serializable {
public int publicIntField;
public long publicLongField;
public B publicBField;
public B[] publicBArray = { new B(4), new B(6)};
public C publicCField;
public A() {
publicIntField = 3;
publicLongField = 10L;
publicBField = new B(5);
publicCField = new C();
}
};
public class SubclassTest {
public static void main(String argv[])
throws IOException, ClassNotFoundException
{
boolean expectSecurityException = false;
if (argv.length > 0 &&
argv[0].compareTo("-expectSecurityException") == 0)
expectSecurityException = true;
ByteArrayOutputStream baos = new ByteArrayOutputStream(20);
XObjectOutputStream os = null;
try {
os = new XObjectOutputStream(baos);
if (expectSecurityException)
throw new Error("Assertion failure. " +
"Expected a security exception on previous line.");
} catch (SecurityException e) {
if (expectSecurityException) {
System.err.println("Caught expected security exception.");
return;
}
throw e;
}
os.writeObject(new A());
os.close();
if (B.numWriteObjectCalled != 3)
throw new Error("Expected B.writeObject() to be called 3 times;" +
" observed only " + B.numWriteObjectCalled + " times");
XObjectInputStream is =
new XObjectInputStream(new ByteArrayInputStream(baos.toByteArray()));
try {
A a = (A)is.readObject();
throw new Error("Expected readObjectOverride() to be called and throw IOException(not implemented)");
} catch (IOException e) {
}
is.close();
}
};
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