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/*
* Copyright (c) 2019, 2020, 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 8246774
* @summary Tests constructor invocation exceptions are handled appropriately
* @run testng ThrowingConstructorTest
* @run testng/othervm/java.security.policy=empty_security.policy ThrowingConstructorTest
*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import static java.lang.System.out;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.expectThrows;
/**
* If the constructor invocation throws an exception, an
* `InvalidObjectException` is thrown with that exception as its cause.
*/
public class ThrowingConstructorTest {
/** "big switch" that can be used to allow/disallow record construction
* set to true after the data provider has constructed all record objects */
private static volatile boolean firstDataSetCreated;
record R1 () implements Serializable {
public R1() {
if (firstDataSetCreated)
throw new NullPointerException("thrown from R1");
}
}
record R2 (int x) implements Serializable {
public R2(int x) {
if (firstDataSetCreated)
throw new IllegalArgumentException("thrown from R2");
this.x = x;
}
}
record R3 (int x, int y) implements Serializable {
public R3(int x, int y) {
if (firstDataSetCreated)
throw new NumberFormatException("thrown from R3");
this.x = x;
this.y = y;
}
}
static class C implements Serializable {
final Object obj ;
C(Object obj) { this.obj= obj; }
@Override public String toString() { return "C[" + obj + "]"; }
}
static final Class<InvalidObjectException> IOE = InvalidObjectException.class;
@DataProvider(name = "exceptionInstances")
public Object[][] exceptionInstances() {
Object[][] objs = new Object[][] {
new Object[] { new R1(), NullPointerException.class, "thrown from R1" },
new Object[] { new R2(1), IllegalArgumentException.class, "thrown from R2" },
new Object[] { new R3(2, 3), NumberFormatException .class, "thrown from R3" },
new Object[] { new C(new R1()), NullPointerException.class, "thrown from R1" },
new Object[] { new C(new R2(4)), IllegalArgumentException.class, "thrown from R2" },
new Object[] { new C(new R3(5, 6)), NumberFormatException .class, "thrown from R3" },
};
firstDataSetCreated = true;
return objs;
}
@Test(dataProvider = "exceptionInstances")
public void testExceptions(Object objectToSerialize,
Class<? extends Throwable> expectedExType,
String expectedExMessage)
throws Exception
{
out.println("\n---");
out.println("serializing: " + objectToSerialize);
byte[] bytes = serialize(objectToSerialize);
InvalidObjectException ioe = expectThrows(IOE, () -> deserialize(bytes));
out.println("caught expected IOE: " + ioe);
Throwable t = ioe.getCause();
assertTrue(t.getClass().equals(expectedExType),
"Expected:" + expectedExType + ", got:" + t);
out.println("expected cause " + expectedExType +" : " + t);
assertEquals(t.getMessage(), expectedExMessage);
}
// -- errors ( pass through unwrapped )
private static volatile boolean secondDataSetCreated;
record R4 () implements Serializable {
public R4() {
if (secondDataSetCreated)
throw new OutOfMemoryError("thrown from R4"); }
}
record R5 (int x) implements Serializable {
public R5(int x) {
if (secondDataSetCreated)
throw new StackOverflowError("thrown from R5");
this.x = x;
}
}
record R6 (int x, int y) implements Serializable {
public R6(int x, int y) {
if (secondDataSetCreated)
throw new AssertionError("thrown from R6");
this.x = x;
this.y = y;
}
}
@DataProvider(name = "errorInstances")
public Object[][] errorInstances() {
Object[][] objs = new Object[][] {
new Object[] { new R4(), OutOfMemoryError.class, "thrown from R4" },
new Object[] { new R5(11), StackOverflowError.class, "thrown from R5" },
new Object[] { new R6(12, 13), AssertionError .class, "thrown from R6" },
new Object[] { new C(new R4()), OutOfMemoryError.class, "thrown from R4" },
new Object[] { new C(new R5(14)), StackOverflowError.class, "thrown from R5" },
new Object[] { new C(new R6(15, 16)), AssertionError .class, "thrown from R6" },
};
secondDataSetCreated = true;
return objs;
}
@Test(dataProvider = "errorInstances")
public void testErrors(Object objectToSerialize,
Class<? extends Throwable> expectedExType,
String expectedExMessage)
throws Exception
{
out.println("\n---");
out.println("serializing: " + objectToSerialize);
byte[] bytes = serialize(objectToSerialize);
Throwable t = expectThrows(expectedExType, () -> deserialize(bytes));
assertTrue(t.getClass().equals(expectedExType),
"Expected:" + expectedExType + ", got:" + t);
out.println("caught expected " + expectedExType +" : " + t);
assertEquals(t.getMessage(), expectedExMessage);
}
// --- infra
static <T> byte[] serialize(T obj) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(obj);
oos.close();
return baos.toByteArray();
}
@SuppressWarnings("unchecked")
static <T> T deserialize(byte[] streamBytes)
throws IOException, ClassNotFoundException
{
ByteArrayInputStream bais = new ByteArrayInputStream(streamBytes);
ObjectInputStream ois = new ObjectInputStream(bais);
return (T) ois.readObject();
}
static <T> T serializeDeserialize(T obj)
throws IOException, ClassNotFoundException
{
return deserialize(serialize(obj));
}
}
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