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/*
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* Copyright (c) 2014, 2018, 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. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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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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package jdk.jfr.jvm;
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import java.io.FileReader;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.ArrayList;
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import java.util.concurrent.Callable;
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import jdk.jfr.AnnotationElement;
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import jdk.jfr.Configuration;
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import jdk.jfr.Description;
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import jdk.jfr.Event;
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import jdk.jfr.EventFactory;
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import jdk.jfr.EventSettings;
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import jdk.jfr.EventType;
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import jdk.jfr.FlightRecorder;
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import jdk.jfr.FlightRecorderListener;
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import jdk.jfr.FlightRecorderPermission;
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import jdk.jfr.Label;
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import jdk.jfr.Recording;
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import jdk.jfr.RecordingState;
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import jdk.jfr.SettingControl;
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import jdk.jfr.ValueDescriptor;
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import jdk.jfr.consumer.RecordedClass;
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import jdk.jfr.consumer.RecordedEvent;
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import jdk.jfr.consumer.RecordedFrame;
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import jdk.jfr.consumer.RecordedMethod;
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import jdk.jfr.consumer.RecordedObject;
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import jdk.jfr.consumer.RecordedStackTrace;
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import jdk.jfr.consumer.RecordedThread;
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import jdk.jfr.consumer.RecordedThreadGroup;
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import jdk.jfr.consumer.RecordingFile;
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import jdk.management.jfr.ConfigurationInfo;
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import jdk.management.jfr.EventTypeInfo;
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import jdk.management.jfr.FlightRecorderMXBean;
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import jdk.management.jfr.RecordingInfo;
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import jdk.management.jfr.SettingDescriptorInfo;
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/*
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* @test TestUnsupportedVM
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* @key jfr
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*
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* @modules jdk.jfr
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* jdk.management.jfr
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*
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* @run main/othervm -Dprepare-recording=true jdk.jfr.jvm.TestUnsupportedVM
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* @run main/othervm -Djfr.unsupported.vm=true jdk.jfr.jvm.TestUnsupportedVM
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*/
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public class TestUnsupportedVM {
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private static Path RECORDING_FILE = Paths.get("recording.jfr");
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private static Class<?> [] APIClasses = {
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AnnotationElement.class,
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Configuration.class,
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ConfigurationInfo.class,
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Event.class,
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EventFactory.class,
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EventSettings.class,
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EventType.class,
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EventTypeInfo.class,
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FlightRecorder.class,
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FlightRecorderPermission.class,
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FlightRecorderListener.class,
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FlightRecorderMXBean.class,
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RecordedClass.class,
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RecordedEvent.class,
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RecordedFrame.class,
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RecordedMethod.class,
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RecordedObject.class,
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RecordedStackTrace.class,
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RecordedThread.class,
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RecordedThreadGroup.class,
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Recording.class,
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RecordingFile.class,
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RecordingInfo.class,
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RecordingState.class,
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SettingControl.class,
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SettingDescriptorInfo.class,
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ValueDescriptor.class
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};
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// * @run main/othervm -Dprepare-recording=true jdk.jfr.jvm.TestUnsupportedVM
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@Label("My Event")
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@Description("My fine event")
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static class MyEvent extends Event {
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int myValue;
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}
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public static void main(String... args) throws Exception {
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if (Boolean.getBoolean("prepare-recording")) {
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Recording r = new Recording(Configuration.getConfiguration("default"));
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r.start();
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r.stop();
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r.dump(RECORDING_FILE);
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r.close();
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return;
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}
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System.out.println("jdk.jfr.unsupportedvm=" + System.getProperty("jdk.jfr.unsupportedvm"));
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// Class FlightRecorder
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if (FlightRecorder.isAvailable()) {
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throw new AssertionError("JFR should not be available on an unsupported VM");
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}
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if (FlightRecorder.isInitialized()) {
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throw new AssertionError("JFR should not be initialized on an unsupported VM");
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}
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assertIllegalStateException(() -> FlightRecorder.getFlightRecorder());
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assertSwallow(() -> FlightRecorder.addListener(new FlightRecorderListener() {}));
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assertSwallow(() -> FlightRecorder.removeListener(new FlightRecorderListener() {}));
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assertSwallow(() -> FlightRecorder.register(MyEvent.class));
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assertSwallow(() -> FlightRecorder.unregister(MyEvent.class));
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assertSwallow(() -> FlightRecorder.addPeriodicEvent(MyEvent.class, new Runnable() { public void run() {} }));
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assertSwallow(() -> FlightRecorder.removePeriodicEvent(new Runnable() { public void run() {} }));
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// Class Configuration
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if (!Configuration.getConfigurations().isEmpty()) {
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throw new AssertionError("Configuration files should not exist on an unsupported VM");
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}
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Path jfcFile = Files.createTempFile("my", ".jfr");
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assertIOException(() -> Configuration.getConfiguration("default"));
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assertIOException(() -> Configuration.create(jfcFile));
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assertIOException(() -> Configuration.create(new FileReader(jfcFile.toFile())));
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// Class EventType
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assertInternalError(() -> EventType.getEventType(MyEvent.class));
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// Class EventFactory
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assertInternalError(() -> EventFactory.create(new ArrayList<>(), new ArrayList<>()));
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// Create a static event
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MyEvent myEvent = new MyEvent();
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myEvent.begin();
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myEvent.end();
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myEvent.shouldCommit();
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myEvent.commit();
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// Trigger class initialization failure
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for (Class<?> c : APIClasses) {
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assertNoClassInitFailure(c);
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}
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// jdk.jfr.consumer.*
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// Only run this part of tests if we are on VM
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// that can produce a recording file
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if (Files.exists(RECORDING_FILE)) {
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for(RecordedEvent re : RecordingFile.readAllEvents(RECORDING_FILE)) {
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System.out.println(re);
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}
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}
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}
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private static void assertNoClassInitFailure(Class<?> clazz) {
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try {
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Class.forName(clazz.getName(), true, clazz.getClassLoader());
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} catch (ClassNotFoundException e) {
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throw new AssertionError("Could not find public API class on unsupported VM");
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}
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}
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private static void assertInternalError(Runnable r) {
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try {
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r.run();
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} catch (InternalError e) {
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// OK, as expected
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return;
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}
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throw new AssertionError("Expected InternalError on an unsupported JVM");
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}
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private static void assertIOException(Callable<?> c) {
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try {
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c.call();
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} catch (Exception e) {
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if (e.getClass() == IOException.class) {
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return;
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}
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}
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throw new AssertionError("Expected IOException on an unsupported JVM");
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}
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private static void assertIllegalStateException(Runnable r) throws Exception {
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try {
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r.run();
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} catch (IllegalStateException ise) {
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if (!ise.getMessage().equals("Flight Recorder is not supported on this VM")) {
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throw new AssertionError("Expected 'Flight Recorder is not supported on this VM'");
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}
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}
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}
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private static void assertSwallow(Runnable r) throws Exception {
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try {
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r.run();
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} catch (Exception e) {
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throw new AssertionError("Unexpected exception '" + e.getMessage() + " on an unspported VM");
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}
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}
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}
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