russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
111 lines
3.6 KiB
Java
111 lines
3.6 KiB
Java
/*
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* Copyright (c) 2017, 2026, 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 8186046
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* @summary Test bootstrap methods throwing an exception
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* @library /java/lang/invoke/common
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* @build test.java.lang.invoke.lib.InstructionHelper
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* @run junit CondyBSMException
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* @run junit/othervm -XX:+UnlockDiagnosticVMOptions -XX:UseBootstrapCallInfo=3 CondyBSMException
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*/
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import test.java.lang.invoke.lib.InstructionHelper;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.reflect.Constructor;
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import static java.lang.invoke.MethodType.methodType;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.*;
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public class CondyBSMException {
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@Test
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public void testThrowable() {
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test("Throwable", BootstrapMethodError.class, Throwable.class);
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}
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@Test
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public void testError() {
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test("Error", Error.class);
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}
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@Test
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public void testBootstrapMethodError() {
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test("BootstrapMethodError", BootstrapMethodError.class);
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}
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@Test
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public void testRuntimeException() {
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test("RuntimeException", BootstrapMethodError.class, RuntimeException.class);
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}
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@Test
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public void testException() {
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test("Exception", BootstrapMethodError.class, Exception.class);
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}
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static void test(String message, Class<? extends Throwable>... ts) {
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MethodHandle mh = thrower(message, ts[ts.length - 1]);
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Throwable caught = assertThrows(Throwable.class, mh::invoke);
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String actualMessage = null;
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for (int i = 0; i < ts.length; i++) {
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int level = i;
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assertInstanceOf(ts[i], caught, () -> "Level %d".formatted(level));
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actualMessage = caught.getMessage();
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caught = caught.getCause();
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}
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assertEquals(message, actualMessage);
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}
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static Throwable throwingBsm(MethodHandles.Lookup l, String name, Class<Throwable> type) throws Throwable {
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Throwable t;
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try {
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Constructor<Throwable> c = type.getDeclaredConstructor(String.class);
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t = c.newInstance(name);
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} catch (Exception e) {
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throw new InternalError();
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}
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throw t;
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}
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static MethodHandle thrower(String message, Class<? extends Throwable> t) {
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try {
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return InstructionHelper.ldcDynamicConstant(
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MethodHandles.lookup(),
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message, t,
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"throwingBsm",
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methodType(Throwable.class, MethodHandles.Lookup.class, String.class, Class.class)
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);
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} catch (Exception e) {
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throw new Error(e);
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}
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}
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}
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