84 lines
3.1 KiB
Java
84 lines
3.1 KiB
Java
/*
|
|
* Copyright (c) 2020, 2022, 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
|
|
* @summary Test stack traces in exceptions and stack frames waslked by the StackWalker
|
|
* API do not include the carrier stack frames
|
|
* @requires vm.continuations
|
|
* @modules java.management
|
|
* @library /test/lib
|
|
* @compile --enable-preview -source ${jdk.version} StackTraces.java
|
|
* @run testng/othervm --enable-preview StackTraces
|
|
* @run testng/othervm --enable-preview -XX:+UnlockDiagnosticVMOptions -XX:+ShowCarrierFrames StackTraces
|
|
*/
|
|
|
|
import java.lang.management.ManagementFactory;
|
|
import java.util.Arrays;
|
|
import java.util.Set;
|
|
import java.util.concurrent.ForkJoinPool;
|
|
import static java.lang.StackWalker.Option.*;
|
|
|
|
import jdk.test.lib.thread.VThreadRunner;
|
|
import org.testng.annotations.Test;
|
|
import static org.testng.Assert.*;
|
|
|
|
public class StackTraces {
|
|
|
|
/**
|
|
* Test that the stack trace in exceptions does not include the carrier thread
|
|
* frames, except when running with -XX:+ShowCarrierFrames.
|
|
*/
|
|
@Test
|
|
public void testStackTrace() throws Exception {
|
|
VThreadRunner.run(() -> {
|
|
Exception e = new Exception();
|
|
boolean found = Arrays.stream(e.getStackTrace())
|
|
.map(StackTraceElement::getClassName)
|
|
.anyMatch("java.util.concurrent.ForkJoinPool"::equals);
|
|
assertTrue(found == hasJvmArgument("-XX:+ShowCarrierFrames"));
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Test that StackWalker does not include carrier thread frames.
|
|
*/
|
|
@Test
|
|
public void testStackWalker() throws Exception {
|
|
VThreadRunner.run(() -> {
|
|
StackWalker walker = StackWalker.getInstance(Set.of(RETAIN_CLASS_REFERENCE));
|
|
boolean found = walker.walk(sf ->
|
|
sf.map(StackWalker.StackFrame::getDeclaringClass)
|
|
.anyMatch(c -> c == ForkJoinPool.class));
|
|
assertFalse(found);
|
|
});
|
|
}
|
|
|
|
private static boolean hasJvmArgument(String arg) {
|
|
for (String argument : ManagementFactory.getRuntimeMXBean().getInputArguments()) {
|
|
if (argument.equals(arg)) return true;
|
|
}
|
|
return false;
|
|
}
|
|
}
|