xref: /external/apache-harmony/luni/src/test/api/common/org/apache/harmony/luni/tests/java/io/SerializationStressTest1.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.apache.harmony.luni.tests.java.io;

import java.io.IOException;
import java.io.NotSerializableException;
import java.io.Serializable;
import java.util.Arrays;
import java.util.Hashtable;
import java.util.Vector;

@SuppressWarnings( { "serial", "unused" })
public class SerializationStressTest1 extends SerializationStressTest {

	// The purpose of these two classes is to test if serialization, when
	// loading, runs the object's constructor (wrong) or the constructor defined
	// at the topmost Serializable superclass(correct).
	static final int INIT_INT_VALUE = 7;

	// HAS to be static class so that our constructor signature will remain
	// untouched (no synthetic param)
	private static class SerializationTest implements java.io.Serializable {
		int anInt = INIT_INT_VALUE;

		public SerializationTest() {
			super();
		}
	}

	static final String INIT_STR_VALUE = "a string that is blortz";

	// HAS to be static class so that our constructor signature will remain
	// untouched (no synthetic param)
	private static class SerializationTestSubclass1 extends SerializationTest {
		String aString = INIT_STR_VALUE;

		public SerializationTestSubclass1() {
			super();
			// Just to change default superclass init value
			anInt = INIT_INT_VALUE / 2;
		}
	}

	// -----------------------------------------------------------------------------------

	private static class SpecTestSuperClass implements Runnable {
		protected java.lang.String instVar;

		public void run() {
		}
	}

	private static class SpecTest extends SpecTestSuperClass implements
			Cloneable, Serializable {
		public java.lang.String instVar1;

		public static java.lang.String staticVar1;

		public static java.lang.String staticVar2;
		{
			instVar1 = "NonStaticInitialValue";
		}
		static {
			staticVar1 = "StaticInitialValue";
			staticVar1 = new String(staticVar1);
		}

		public Object method(Object objParam, Object objParam2) {
			return new Object();
		}

		public boolean method(boolean bParam, Object objParam) {
			return true;
		}

		public boolean method(boolean bParam, Object objParam, Object objParam2) {
			return true;
		}

	}

	private static class SpecTestSubclass extends SpecTest {
		public transient java.lang.String transientInstVar = "transientValue";
	}

	// -----------------------------------------------------------------------------------

	// This one tests what happens if the read/writeObject methods are defined
	// Serialization should work fine.
	private static class ReadWriteObject implements java.io.Serializable {
		public boolean calledWriteObject = false;

		public boolean calledReadObject = false;

		public ReadWriteObject() {
			super();
		}

		private void readObject(java.io.ObjectInputStream in)
				throws java.io.IOException, ClassNotFoundException {
			calledReadObject = true;
			in.readObject();
		}

		private void writeObject(java.io.ObjectOutputStream out)
				throws java.io.IOException {
			calledWriteObject = true;
			out.writeObject(FOO);
		}
	}

	// This one tests what happens if the read/writeObject methods are not
	// private.
	// Serialization should fail.
	private static class PublicReadWriteObject implements java.io.Serializable {
		public boolean calledWriteObject = false;

		public boolean calledReadObject = false;

		public PublicReadWriteObject() {
			super();
		}

		public void readObject(java.io.ObjectInputStream in)
				throws java.io.IOException, ClassNotFoundException {
			calledReadObject = true;
			in.readObject();
		}

		public void writeObject(java.io.ObjectOutputStream out)
				throws java.io.IOException {
			calledWriteObject = true;
			out.writeObject(FOO);
		}
	}

	// This one tests if field names are serialized in the same way (sorting)
	// across different VMs
	private static class FieldOrder implements Serializable {
		String aaa1NonPrimitive = "aaa1";

		int bbb1PrimitiveInt = 5;

		boolean aaa2PrimitiveBoolean = true;

		String bbb2NonPrimitive = "bbb2";
	}

	// This one tests what happens if you define just readObject, but not
	// writeObject.
	// Does it run or not ?
	private static class JustReadObject implements java.io.Serializable {
		public boolean calledReadObject = false;

		public JustReadObject() {
			super();
		}

		private void readObject(java.io.ObjectInputStream in)
				throws java.io.IOException, ClassNotFoundException {
			calledReadObject = true;
			in.defaultReadObject();
		}
	}

	// This one tests what happens if you define just writeObject, but not
	// readObject.
	// Does it run or not ?
	private static class JustWriteObject implements java.io.Serializable {
		public boolean calledWriteObject = false;

		public JustWriteObject() {
			super();
		}

		private void writeObject(java.io.ObjectOutputStream out)
				throws java.io.IOException, ClassNotFoundException {
			calledWriteObject = true;
			out.defaultWriteObject();
		}
	}

	// This one tests class-based replacement when dumping
	private static class ClassBasedReplacementWhenDumping implements
			java.io.Serializable {
		public boolean calledReplacement = false;

		public ClassBasedReplacementWhenDumping() {
			super();
		}

		private Object writeReplace() {
			calledReplacement = true;
			return FOO; // Replacement is a String
		}
	}

	// This one tests whether class-based replacement supports multiple levels.
	// MultipleClassBasedReplacementWhenDumping -> C1 -> C2 -> C3 -> FOO
	private static class MultipleClassBasedReplacementWhenDumping implements
			java.io.Serializable {
		private static class C1 implements java.io.Serializable {
			private Object writeReplace() {
				return new C2();
			}
		}

		private static class C2 implements java.io.Serializable {
			private Object writeReplace() {
				return new C3();
			}
		}

		private static class C3 implements java.io.Serializable {
			private Object writeReplace() {
				return FOO;
			}
		}

		public MultipleClassBasedReplacementWhenDumping() {
			super();
		}

		private Object writeReplace() {
			return new C1();
		}
	}

	// This one tests class-based replacement when loading
	private static class ClassBasedReplacementWhenLoading implements
			java.io.Serializable {
		public ClassBasedReplacementWhenLoading() {
			super();
		}

		private Object readResolve() {
			return FOO; // Replacement is a String
		}
	}

	// This one tests what happens if a loading-replacement is not
	// type-compatible with the original object
	private static class ClassBasedReplacementWhenLoadingViolatesFieldType
			implements java.io.Serializable {
		public ClassBasedReplacementWhenLoading classBasedReplacementWhenLoading = new ClassBasedReplacementWhenLoading();

		public ClassBasedReplacementWhenLoadingViolatesFieldType() {
			super();
		}
	}

	// What happens if dumping causes an error and you try to reload ?
	// Should the load throw the same exception ?
	private static class MyExceptionWhenDumping1 implements
			java.io.Serializable {
		private static class MyException extends java.io.IOException {
		};

		// A primitive instance variable exposes a bug in the serialization
		// spec.
		// Primitive instance variables are written without primitive data tags
		// and so are read without checking for tags. If an exception is
		// written, reading primitive data will just read bytes from the stream
		// which may be tags
		public boolean anInstanceVar = false;

		public MyExceptionWhenDumping1() {
			super();
		}

		private void readObject(java.io.ObjectInputStream in)
				throws java.io.IOException, ClassNotFoundException {
			in.defaultReadObject();
		}

		private void writeObject(java.io.ObjectOutputStream out)
				throws java.io.IOException, ClassNotFoundException {
			throw new MyException();
		}
	}

	// What happens if dumping causes an error and you try to reload ?
	// Should the load throw the same exception ?
	private static class MyExceptionWhenDumping2 implements
			java.io.Serializable {
		private static class MyException extends java.io.IOException {
		};

		public Integer anInstanceVar = new Integer(0xA1);

		public MyExceptionWhenDumping2() {
			super();
		}

		private void readObject(java.io.ObjectInputStream in)
				throws java.io.IOException, ClassNotFoundException {
			in.defaultReadObject();
		}

		private void writeObject(java.io.ObjectOutputStream out)
				throws java.io.IOException, ClassNotFoundException {
			throw new MyException();
		}
	}

	// What happens if dumping causes an error (NonSerializable inst var) and
	// you try to reload ?
	// Should the load throw the same exception ?
	private static class NonSerializableExceptionWhenDumping implements
			java.io.Serializable {
		public Object anInstanceVar = new Object();

		public NonSerializableExceptionWhenDumping() {
			super();
		}
	}

	// What happens if dumping causes an error (which is not serializable) and
	// you try to reload ?
	// Should the load throw the same exception ?
	private static class MyUnserializableExceptionWhenDumping implements
			java.io.Serializable {
		private static class MyException extends java.io.IOException {
			private Object notSerializable = new Object();
		};

		public boolean anInstanceVar = false;

		public MyUnserializableExceptionWhenDumping() {
			super();
		}

		private void readObject(java.io.ObjectInputStream in)
				throws java.io.IOException, ClassNotFoundException {
			in.defaultReadObject();
		}

		private void writeObject(java.io.ObjectOutputStream out)
				throws java.io.IOException, ClassNotFoundException {
			throw new MyException();
		}
	}

	public SerializationStressTest1(String name) {
		super(name);
	}

	public void test_18_1_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			objToSave = "HelloWorld";
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, (((String) objLoaded)
					.equals((String) objToSave)));

		} catch (IOException e) {
			fail("IOException serializing data : " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type: "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_2_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			objToSave = null;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, objLoaded == objToSave);

		} catch (IOException e) {
			fail("IOException serializing data : " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_3_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			byte[] bytes = { 0, 1, 2, 3 };
			objToSave = bytes;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, Arrays.equals(
					(byte[]) objLoaded, (byte[]) objToSave));

		} catch (IOException e) {
			fail("IOException serializing data : " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_4_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			int[] ints = { 0, 1, 2, 3 };
			objToSave = ints;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, Arrays.equals(
					(int[]) objLoaded, (int[]) objToSave));

		} catch (IOException e) {
			fail("IOException serializing data : " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			throw err;
		}
	}

	public void test_18_5_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {

			short[] shorts = { 0, 1, 2, 3 };
			objToSave = shorts;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, Arrays.equals(
					(short[]) objLoaded, (short[]) objToSave));

		} catch (IOException e) {
			fail("IOException serializing data : " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_6_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			long[] longs = { 0, 1, 2, 3 };
			objToSave = longs;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, Arrays.equals(
					(long[]) objLoaded, (long[]) objToSave));

		} catch (IOException e) {
			fail("IOException serializing data : " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_7_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			float[] floats = { 0.0f, 1.1f, 2.2f, 3.3f };
			objToSave = floats;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, Arrays.equals(
					(float[]) objLoaded, (float[]) objToSave));

		} catch (IOException e) {
			fail("IOException serializing data: " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_8_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			double[] doubles = { 0.0, 1.1, 2.2, 3.3 };
			objToSave = doubles;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, Arrays.equals(
					(double[]) objLoaded, (double[]) objToSave));

		} catch (IOException e) {
			fail("IOException serializing data : " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_9_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			boolean[] booleans = { true, false, false, true };
			objToSave = booleans;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, Arrays.equals(
					(boolean[]) objLoaded, (boolean[]) objToSave));

		} catch (IOException e) {
			fail("IOException serializing data : " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : " + e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_10_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {

			String[] strings = { "foo", "bar", "java" };
			objToSave = strings;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue(MSG_TEST_FAILED + objToSave, Arrays.equals(
					(Object[]) objLoaded, (Object[]) objToSave));

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("Unable to read Object type: " + e.toString());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_11_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
        Object objLoaded;

		try {

			objToSave = new Object(); // Not serializable
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			boolean passed = false;
			Throwable t = null;
			try {
				objLoaded = dumpAndReload(objToSave);
			} catch (NotSerializableException ns) {
				passed = true;
				t = ns;
			} catch (Exception wrongExc) {
				passed = false;
				t = wrongExc;
			}
			assertTrue(
					"Failed to throw NotSerializableException when serializing "
							+ objToSave + " Threw(if non-null) this: " + t,
					passed);
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_12_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		try {
			if (DEBUG)
				System.out.println("Obj = <mixed>");
			t_MixPrimitivesAndObjects();
		} catch (IOException e) {
			fail("IOException serializing data : " + e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when dumping mixed types");
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_13_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			SerializationTestSubclass1 st = new SerializationTestSubclass1();
			// Just change the default ivar values
			st.anInt = Integer.MAX_VALUE;
			st.aString = FOO;
			objToSave = st;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// non-serializable inst var has to be initialized from top
			// constructor
			assertTrue(
					MSG_TEST_FAILED + objToSave,
					((SerializationTestSubclass1) objLoaded).anInt == Integer.MAX_VALUE);
			// but serialized var has to be restored as it was in the object
			// when dumped
			assertTrue(MSG_TEST_FAILED + objToSave,
					((SerializationTestSubclass1) objLoaded).aString
							.equals(FOO));
		} catch (IOException e) {
			fail("Exception serializing " + objToSave + "\t->"
					+ e.toString());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			err.printStackTrace();
			throw err;
		}
	}

	public void test_18_14_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			SpecTest specTest = new SpecTest();
			// Just change the default ivar values
			specTest.instVar = FOO;
			specTest.instVar1 = specTest.instVar;
			objToSave = specTest;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// non-serializable inst var has to be initialized from top
			// constructor
			assertNull(MSG_TEST_FAILED + objToSave,
					((SpecTest) objLoaded).instVar);
			// instVar from non-serialized class, cant  be  saved/restored
			// by serialization but serialized ivar has to be restored as it
			// was in the object when dumped
			assertTrue(MSG_TEST_FAILED + objToSave,
					((SpecTest) objLoaded).instVar1.equals(FOO));

		} catch (IOException e) {
			fail("Exception serializing " + objToSave + "\t->"
					+ e.toString());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_15_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			SpecTestSubclass specTestSubclass = new SpecTestSubclass();
			// Just change the default ivar values
			specTestSubclass.transientInstVar = FOO;
			objToSave = specTestSubclass;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// non-serializable inst var cant be saved, and it is not init'ed
			// from top constructor in this case
			assertNull(MSG_TEST_FAILED + objToSave,
					((SpecTestSubclass) objLoaded).transientInstVar);
			// transient slot, cant be saved/restored by serialization
		} catch (IOException e) {
			fail("Exception serializing " + objToSave + "\t->"
					+ e.toString());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_16_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {

			String[] strings = new String[2];
			strings[0] = FOO;
			strings[1] = (" " + FOO + " ").trim(); // Safe way to get a copy
			// that is not ==
			objToSave = strings;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			String[] stringsLoaded = (String[]) objLoaded;
			// Serialization has to use identity-based table for assigning IDs
			assertTrue(MSG_TEST_FAILED + objToSave,
					!(stringsLoaded[0] == stringsLoaded[1]));
		} catch (IOException e) {
			fail("Exception serializing " + objToSave + "\t->"
					+ e.toString());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_17_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {

			ReadWriteObject readWrite = new ReadWriteObject();
			objToSave = readWrite;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// has to have called the writeObject on the instance to dump
			assertTrue(MSG_TEST_FAILED + objToSave, readWrite.calledWriteObject);
			// has to have called the readObject on the instance loaded
			assertTrue(MSG_TEST_FAILED + objToSave,
					((ReadWriteObject) objLoaded).calledReadObject);

		} catch (IOException e) {
			fail("Exception serializing " + objToSave + "\t->"
					+ e.toString());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_18_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			PublicReadWriteObject publicReadWrite = new PublicReadWriteObject();
			objToSave = publicReadWrite;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Can't have called the writeObject on the instance to dump
			assertTrue(MSG_TEST_FAILED + objToSave,
					!publicReadWrite.calledWriteObject);
			// Can't have called the readObject on the instance loaded
			assertTrue(MSG_TEST_FAILED + objToSave,
					!((PublicReadWriteObject) objLoaded).calledReadObject);

		} catch (IOException e) {
			fail("Exception serializing " + objToSave + "\t->"
					+ e.toString());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_19_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			FieldOrder fieldOrder = new FieldOrder();
			objToSave = fieldOrder;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// This test is only useful for X-loading, so if it managed to
			// dump&load, we passed the test
			assertTrue(MSG_TEST_FAILED + objToSave, true);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_20_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			objToSave = Class.forName("java.lang.Integer");
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Classes with the same name are unique, so test for ==
			assertTrue(MSG_TEST_FAILED + objToSave, objLoaded == objToSave);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_21_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			// Even though instances of java.lang.Object are not Serializable,
			// instances of java.lang.Class are. So, the object
			// java.lang.Object.class
			// should be serializable
			objToSave = Class.forName("java.lang.Object");
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Classes with the same name are unique, so test for ==
			assertTrue(MSG_TEST_FAILED + objToSave, objLoaded == objToSave);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_22_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			java.net.URL url = new java.net.URL("http://localhost/a.txt");
			objToSave = url;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			assertTrue("URLs are not the same: " + url + "\t,\t" + objLoaded,
					url.equals(objLoaded));

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_23_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {

			JustReadObject justReadObject = new JustReadObject();
			objToSave = justReadObject;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Only calls readObject on the instance loaded if writeObject was
			// also defined
			assertTrue("Called readObject on an object without a writeObject",
					!((JustReadObject) objLoaded).calledReadObject);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_24_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {

			JustWriteObject justWriteObject = new JustWriteObject();
			objToSave = justWriteObject;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Call writeObject on the instance even if it does not define
			// readObject
			assertTrue(MSG_TEST_FAILED + objToSave,
					justWriteObject.calledWriteObject);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type: "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_25_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			Vector<String> vector = new Vector<String>(1);
			vector.add(FOO);
			objToSave = vector;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to have the string there
			assertTrue(MSG_TEST_FAILED + objToSave, FOO
					.equals(((java.util.Vector) objLoaded).elementAt(0)));

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			throw err;
		}
	}

	public void test_18_26_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			Hashtable<String, String> hashTable = new Hashtable<String, String>(
                    5);
            hashTable.put(FOO, FOO);
            objToSave = hashTable;
            if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			java.util.Hashtable loadedHashTable = (java.util.Hashtable) objLoaded;
			// Has to have the key/value there (FOO -> FOO)
			assertTrue(MSG_TEST_FAILED + objToSave, FOO.equals(loadedHashTable
					.get(FOO)));

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			throw err;
		}
	}

	public void test_18_27_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			ClassBasedReplacementWhenDumping classBasedReplacementWhenDumping = new ClassBasedReplacementWhenDumping();
			objToSave = classBasedReplacementWhenDumping;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to have run the replacement method
			assertTrue("Did not run writeReplace",
					classBasedReplacementWhenDumping.calledReplacement);

			// Has to have loaded a String (replacement object)
			assertTrue("Did not replace properly", FOO.equals(objLoaded));

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_28_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			MultipleClassBasedReplacementWhenDumping multipleClassBasedReplacementWhenDumping = new MultipleClassBasedReplacementWhenDumping();
			objToSave = multipleClassBasedReplacementWhenDumping;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to have loaded a String (replacement object)
			assertTrue(
					"Executed multiple levels of replacement (see PR 1F9RNT1), loaded= "
							+ objLoaded,
					objLoaded instanceof MultipleClassBasedReplacementWhenDumping.C1);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.toString());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_29_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			ClassBasedReplacementWhenLoading classBasedReplacementWhenLoading = new ClassBasedReplacementWhenLoading();
			objToSave = classBasedReplacementWhenLoading;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to have loaded a String (replacement object)
			assertTrue("Did not run readResolve", FOO.equals(objLoaded));

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_30_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			ClassBasedReplacementWhenLoadingViolatesFieldType classBasedReplacementWhenLoadingViolatesFieldType = new ClassBasedReplacementWhenLoadingViolatesFieldType();
			objToSave = classBasedReplacementWhenLoadingViolatesFieldType;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// We cannot gere here, the load replacement must have caused a
			// field type violation
			fail(
					"Loading replacements can cause field type violation in this implementation");

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (ClassCastException e) {
			assertTrue(
					"Loading replacements can NOT cause field type violation in this implementation",
					true);
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_31_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			MyExceptionWhenDumping1 exceptionWhenDumping = new MyExceptionWhenDumping1();
			objToSave = exceptionWhenDumping;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			boolean causedException = false;
			try {
				dump(objToSave);
			} catch (MyExceptionWhenDumping1.MyException e) {
				causedException = true;
			}
			;
			assertTrue("Should have caused an exception when dumping",
					causedException);
			causedException = false;
			try {
				objLoaded = reload();
				// Although the spec says we should get a WriteAbortedException,
				// the serialization format handle an Exception when reading
				// primitive data so we get ClassCastException instead
			} catch (ClassCastException e) {
				causedException = true;
			}
			;
			assertTrue("Should have caused a ClassCastException when loading",
					causedException);
		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_32_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			MyExceptionWhenDumping2 exceptionWhenDumping = new MyExceptionWhenDumping2();
			objToSave = exceptionWhenDumping;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			boolean causedException = false;
			try {
				dump(objToSave);
			} catch (MyExceptionWhenDumping2.MyException e) {
				causedException = true;
			}
			;
			assertTrue("Should have caused an exception when dumping",
					causedException);
			causedException = false;
			try {
				objLoaded = reload();
			} catch (java.io.WriteAbortedException e) {
				causedException = true;
			}
			;
			assertTrue(
					"Should have caused a java.io.WriteAbortedException when loading",
					causedException);
		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (ClassCastException e) {
			fail("ClassCastException : " + e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			throw err;
		}
	}

	public void test_NonSerializableExceptionWhenDumping() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			NonSerializableExceptionWhenDumping nonSerializableExceptionWhenDumping = new NonSerializableExceptionWhenDumping();
			objToSave = nonSerializableExceptionWhenDumping;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			boolean causedException = false;
			try {
				dump(objToSave);
			} catch (java.io.NotSerializableException e) {
				causedException = true;
			}
			;
			assertTrue("Should have caused an exception when dumping",
					causedException);
			causedException = false;
			try {
				objLoaded = reload();
			} catch (java.io.WriteAbortedException e) {
				causedException = true;
			}
			;
			assertTrue(
					"Should have caused a java.io.WriteAbortedException when loading",
					causedException);
		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_33_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			MyUnserializableExceptionWhenDumping exceptionWhenDumping = new MyUnserializableExceptionWhenDumping();
			objToSave = exceptionWhenDumping;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			boolean causedException = false;
			try {
				dump(objToSave);
			} catch (java.io.StreamCorruptedException e) {
				causedException = true;
			}
			;
			assertTrue("Should have caused an exception when dumping",
					causedException);
			// As the stream is corrupted, reading the stream will have
			// undefined results
		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_34_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			java.io.IOException ioe = new java.io.IOException();
			objToSave = ioe;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to be able to save/load an exception
			assertTrue(MSG_TEST_FAILED + objToSave, true);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_35_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			objToSave = Class.forName("java.util.Hashtable");
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Classes with the same name are unique, so test for ==
			assertTrue(MSG_TEST_FAILED + objToSave, objLoaded == objToSave);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_36_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			java.io.IOException ex = new java.io.InvalidClassException(FOO);
			objToSave = ex;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to be able to save/load an exception
			assertTrue(MSG_TEST_FAILED + objToSave, true);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_37_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			java.io.IOException ex = new java.io.InvalidObjectException(FOO);
			objToSave = ex;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to be able to save/load an exception
			assertTrue(MSG_TEST_FAILED + objToSave, true);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_38_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			java.io.IOException ex = new java.io.NotActiveException(FOO);
			objToSave = ex;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to be able to save/load an exception
			assertTrue(MSG_TEST_FAILED + objToSave, true);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_39_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			java.io.IOException ex = new java.io.NotSerializableException(FOO);
			objToSave = ex;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to be able to save/load an exception
			assertTrue(MSG_TEST_FAILED + objToSave, true);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}

	public void test_18_40_writeObject() {
		// Test for method void
		// java.io.ObjectOutputStream.writeObject(java.lang.Object)

		Object objToSave = null;
		Object objLoaded;

		try {
			java.io.IOException ex = new java.io.StreamCorruptedException(FOO);
			objToSave = ex;
			if (DEBUG)
				System.out.println("Obj = " + objToSave);
			objLoaded = dumpAndReload(objToSave);
			// Has to be able to save/load an exception
			assertTrue(MSG_TEST_FAILED + objToSave, true);

		} catch (IOException e) {
			fail("IOException serializing " + objToSave + " : "
					+ e.getMessage());
		} catch (ClassNotFoundException e) {
			fail("ClassNotFoundException reading Object type : "
					+ e.getMessage());
		} catch (Error err) {
			System.out.println("Error when obj = " + objToSave);
			// err.printStackTrace();
			throw err;
		}
	}
}