112 lines
4.6 KiB
Java
112 lines
4.6 KiB
Java
/*
|
|
* Copyright (c) 2023, 2024, 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 8297977
|
|
* @summary Test that throwing OOM from reflected method gets InvocationTargetException
|
|
* @run main/othervm -Xmx128m ReflectOutOfMemoryError
|
|
*/
|
|
import java.lang.reflect.*;
|
|
|
|
// This test salvaged out of vmTestbase except tests.
|
|
public class ReflectOutOfMemoryError {
|
|
|
|
private static volatile Object pool[] = null;
|
|
|
|
public static void raiseOutOfMemory() throws OutOfMemoryError {
|
|
try {
|
|
// Repository for objects, which should be allocated:
|
|
int index = 0;
|
|
for (int size = 1 << 30; size > 0 && pool == null; size >>= 1)
|
|
try {
|
|
pool = new Object[size];
|
|
} catch (OutOfMemoryError oome) {
|
|
}
|
|
if (pool == null)
|
|
throw new Error("HS bug: cannot allocate new Object[1]");
|
|
|
|
// Sum up time spent, when it was hard to JVM to allocate next object
|
|
// (i.e.: when JVM has spent more than 1 second to allocate new object):
|
|
double totalDelay = 0;
|
|
long timeMark = System.currentTimeMillis();
|
|
|
|
for (; index < pool.length; index++) {
|
|
//-------------------------
|
|
pool[index] = new Object();
|
|
long nextTimeMark = System.currentTimeMillis();
|
|
long elapsed = nextTimeMark - timeMark;
|
|
timeMark = nextTimeMark;
|
|
//----------------------
|
|
if (elapsed > 1000) {
|
|
double seconds = elapsed / 1000.0;
|
|
System.out.println(
|
|
"pool[" + index +
|
|
"]=new Object(); // elapsed " + seconds + "s");
|
|
totalDelay += seconds;
|
|
if (totalDelay > 300) {
|
|
System.out.println(
|
|
"Memory allocation became slow: so heap seems exhausted.");
|
|
throw new OutOfMemoryError();
|
|
}
|
|
}
|
|
}
|
|
|
|
// This method should never return:
|
|
throw new Error("TEST_BUG: failed to provoke OutOfMemoryError");
|
|
} finally {
|
|
// Make sure there will be enough memory for next object allocation
|
|
pool = null;
|
|
}
|
|
}
|
|
|
|
public static void main(java.lang.String[] unused) throws Exception {
|
|
System.out.println("Starting test");
|
|
Class testClass = ReflectOutOfMemoryError.class;
|
|
try {
|
|
Method testMethod = testClass.getMethod("raiseOutOfMemory", new Class [0]);
|
|
Object junk = testMethod.invoke(null, new Object [0]);
|
|
throw new RuntimeException("InvocationTargetException should be thrown");
|
|
} catch (InvocationTargetException ite) {
|
|
// We may not directly get OOME but it could have caused
|
|
// secondary exceptions, so walk the chain of exceptions
|
|
// and see if there is an OOME somewhere.
|
|
for (Throwable cause = ite.getTargetException();
|
|
cause != null;
|
|
cause = cause.getCause()) {
|
|
if (cause instanceof OutOfMemoryError) {
|
|
System.out.println("OutOfMemoryError thrown as expected.");
|
|
ite.printStackTrace(System.out);
|
|
System.out.println("Test passed.");
|
|
return;
|
|
}
|
|
}
|
|
|
|
throw new RuntimeException("Unexpected InvocationTargetException: ",
|
|
ite.getTargetException());
|
|
} catch (Exception exception) {
|
|
throw new RuntimeException("Unexpected exception: ", exception);
|
|
}
|
|
}
|
|
}
|