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/*
* Copyright (c) 2005, 2015, 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 6783290
* @summary Test correct reading of an empty Descriptor.
* @author Jaroslav Bachorik
*
* @run clean SerializationTest1
* @run build SerializationTest1
* @run main SerializationTest1
*/
import java.io.*;
import javax.management.*;
public class SerializationTest1 {
public static void main(String[] args) throws Exception {
MBeanInfo mi1 = new MBeanInfo("",
"",
new MBeanAttributeInfo[]{},
new MBeanConstructorInfo[]{},
new MBeanOperationInfo[]{},
new MBeanNotificationInfo[]{},
ImmutableDescriptor.EMPTY_DESCRIPTOR);
test(mi1);
MBeanFeatureInfo mfi2 = new MBeanFeatureInfo("",
"",
ImmutableDescriptor.EMPTY_DESCRIPTOR);
test(mfi2);
}
public static void test(Object obj) throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(obj);
final boolean[] failed = new boolean[]{false};
ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
final ObjectInputStream ois = new ObjectInputStream(bais) {
protected Class<?> resolveClass(ObjectStreamClass desc) throws IOException, ClassNotFoundException {
System.out.println("*** " + desc.getName());
if (desc.getName().equals("[Ljava.lang.Object;")) { // javax.management.Descriptor fields
Thread.dumpStack();
for(StackTraceElement e : Thread.currentThread().getStackTrace()) { // checking for the deserialization location
if (e.getMethodName().equals("skipCustomData")) { // indicates the presence of unread values from the custom object serialization
failed[0] = true;
}
}
}
return super.resolveClass(desc); //To change body of generated methods, choose Tools | Templates.
}
};
Object newObj = ois.readObject();
if (failed[0]) {
throw new RuntimeException("Zero-length descriptor not read back");
}
}
}
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