b52c5bbd67
Implement stack walking using javaVFrame instead of vframeStream Reviewed-by: mchung, vlivanov
75 lines
2.4 KiB
Java
75 lines
2.4 KiB
Java
/*
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* Copyright (c) 2016 Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8147039
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* @summary Test for -Xcomp crash that happened before 8147039 fix
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* @run testng/othervm -Xcomp LocalsCrash
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*/
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import org.testng.annotations.*;
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import java.lang.reflect.*;
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import java.util.List;
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import java.util.stream.Collectors;
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public class LocalsCrash {
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static Class<?> liveStackFrameClass;
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static Method getStackWalker;
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static {
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try {
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liveStackFrameClass = Class.forName("java.lang.LiveStackFrame");
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getStackWalker = liveStackFrameClass.getMethod("getStackWalker");
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getStackWalker.setAccessible(true);
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} catch (Throwable t) { throw new RuntimeException(t); }
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}
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private StackWalker walker;
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LocalsCrash() {
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try {
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walker = (StackWalker) getStackWalker.invoke(null);
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} catch (Exception e) { throw new RuntimeException(e); }
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}
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@Test
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public void test00() { doStackWalk(); }
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@Test
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public void test01() { doStackWalk(); }
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private synchronized List<StackWalker.StackFrame> doStackWalk() {
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try {
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// Unused local variables will become dead
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int x = 10;
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char c = 'z';
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String hi = "himom";
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long l = 1000000L;
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double d = 3.1415926;
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return walker.walk(s -> s.collect(Collectors.toList()));
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} catch (Exception e) { throw new RuntimeException(e); }
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}
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}
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