122 lines
5.0 KiB
Java
122 lines
5.0 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 8309034 8334545
|
|
* @summary Test that when saving a class initialization failure caused by
|
|
* a StackOverflowError, that we record the SOE as the underlying
|
|
* cause, even if we can't create the ExceptionInInitializerError
|
|
* @comment This test could easily be perturbed so don't allow flag settings.
|
|
* @requires vm.flagless
|
|
* @comment Run with the smallest stack possible to limit the execution time.
|
|
* This is the smallest stack that is supported by all platforms.
|
|
* @run main/othervm -Xss384K -Xint TestStackOverflowDuringInit
|
|
*/
|
|
|
|
import java.io.ByteArrayOutputStream;
|
|
import java.io.PrintStream;
|
|
|
|
public class TestStackOverflowDuringInit {
|
|
|
|
// The setup for this is somewhat intricate. We need to trigger a
|
|
// StackOverflowError during execution of the static initializer
|
|
// for a class, but we need there to be insufficient stack left
|
|
// for the creation of the ExceptionInInitializerError that would
|
|
// occur in that case. So we can't just recurse in a static initializer
|
|
// as that would unwind all the way allowing plenty of stack for the
|
|
// EIIE. Instead we recurse outside of a static initializer context
|
|
// and have a finally clause that will trigger class initialization
|
|
// of another class, which is where we will fail to create the EIIE.
|
|
// Even then this is non-trivial, only the use of Long.valueOf from
|
|
// the original reproducer seems to trigger SOE in just the right places.
|
|
// Later changes to the JDK meant that LongCache was initialized before
|
|
// the test even started under jtreg so we define local versions.
|
|
|
|
static class LongCache {
|
|
// Must have a static initializer
|
|
static {
|
|
System.out.println("LongCache is initializing");
|
|
}
|
|
static java.lang.Long valueOf(long l) {
|
|
return Long.valueOf(l);
|
|
}
|
|
}
|
|
|
|
static class MyLong {
|
|
static java.lang.Long valueOf(long l) {
|
|
if (l > -128 && l < 127) {
|
|
return LongCache.valueOf(l);
|
|
} else {
|
|
return Long.valueOf(l);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void recurse() {
|
|
try {
|
|
// This will initialize MyLong but not touch LongCache.
|
|
MyLong.valueOf(1024L);
|
|
recurse();
|
|
} finally {
|
|
// This will require initializing LongCache, which will
|
|
// initially fail due to StackOverflowError and so LongCache
|
|
// will be marked erroneous. As we unwind and again execute this
|
|
// we will throw NoClassDefFoundError due to the erroneous
|
|
// state of LongCache.
|
|
MyLong.valueOf(0);
|
|
}
|
|
}
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
String expected = "java.lang.NoClassDefFoundError: Could not initialize class TestStackOverflowDuringInit$LongCache";
|
|
String cause = "Caused by: java.lang.StackOverflowError";
|
|
|
|
// Pre-load, but not initialize, LongCache, else we will
|
|
// hit SOE during class loading.
|
|
System.out.println("Pre-loading ...");
|
|
Class<?> c = Class.forName("TestStackOverflowDuringInit$LongCache",
|
|
false,
|
|
TestStackOverflowDuringInit.class.getClassLoader());
|
|
try {
|
|
recurse();
|
|
} catch (Throwable ex) {
|
|
// ex.printStackTrace();
|
|
verify_stack(ex, expected, cause);
|
|
}
|
|
}
|
|
|
|
private static void verify_stack(Throwable e, String expected, String cause) throws Exception {
|
|
ByteArrayOutputStream byteOS = new ByteArrayOutputStream();
|
|
try (PrintStream printStream = new PrintStream(byteOS)) {
|
|
e.printStackTrace(printStream);
|
|
}
|
|
String stackTrace = byteOS.toString("ASCII");
|
|
System.out.println(stackTrace);
|
|
if (!stackTrace.contains(expected) ||
|
|
(cause != null && !stackTrace.contains(cause))) {
|
|
throw new RuntimeException(expected + " and/or " + cause + " missing from stacktrace");
|
|
}
|
|
}
|
|
}
|