1 /* 2 * Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.event.runtime; 27 28 import java.time.Duration; 29 import java.util.List; 30 31 import jdk.jfr.Recording; 32 import jdk.jfr.consumer.RecordedClass; 33 import jdk.jfr.consumer.RecordedEvent; 34 import jdk.jfr.consumer.RecordedFrame; 35 import jdk.jfr.consumer.RecordedStackTrace; 36 import jdk.jfr.consumer.RecordedThread; 37 import jdk.testlibrary.Asserts; 38 import jdk.testlibrary.jfr.EventNames; 39 import jdk.testlibrary.jfr.Events; 40 41 /* 42 * @test 43 * @key jfr 44 * @library /lib/testlibrary 45 * @run main/othervm jdk.jfr.event.runtime.TestExceptionEvents 46 */ 47 public class TestExceptionEvents { 48 49 private static final String EXCEPTION_EVENT_PATH = EventNames.JavaExceptionThrow; 50 private static final String ERROR_EVENT_PATH = EventNames.JavaErrorThrow; 51 private static final String EXCEPTION_STATISTICS_PATH = EventNames.ExceptionStatistics; 52 53 private static final String EXCEPTION_MESSAGE = "exceptiontest"; 54 private static final String ERROR_MESSAGE = "errortest"; 55 private static final String THROWABLE_MESSAGE = "throwabletest"; 56 57 private static final int ITERATIONS = 10; 58 59 private static int exceptionCount = 0; 60 61 public static void main(String[] args) throws Throwable { 62 Recording recording = createRecording(); 63 64 List<RecordedEvent> events = Events.fromRecording(recording); 65 checkStatisticsEvent(events, exceptionCount); 66 checkThrowableEvents(events, EXCEPTION_EVENT_PATH, ITERATIONS, MyException.class, EXCEPTION_MESSAGE); 67 checkThrowableEvents(events, ERROR_EVENT_PATH, ITERATIONS, MyError.class, ERROR_MESSAGE); 68 checkThrowableEvents(events, EXCEPTION_EVENT_PATH, ITERATIONS, MyThrowable.class, THROWABLE_MESSAGE); 69 checkExceptionStackTrace(); 70 } 71 72 private static void checkExceptionStackTrace() throws Exception { 73 @SuppressWarnings("serial") 74 class TestError extends Error { 75 } 76 @SuppressWarnings("serial") 77 class TestException extends Exception { 78 } 79 80 try (Recording r = new Recording()) { 81 r.enable(EventNames.JavaErrorThrow).withStackTrace(); 82 r.enable(EventNames.JavaExceptionThrow).withStackTrace(); 83 r.start(); 84 try { 85 throw new TestError(); 86 } catch (Error e) { 87 System.out.println(e.getClass() + " thrown!"); 88 } 89 try { 90 throw new TestException(); 91 } catch (Exception e) { 92 System.out.println(e.getClass() + " thrown!"); 93 } 94 try { 95 throw new Exception(); 96 } catch (Exception e) { 97 System.out.println(e.getClass() + " thrown!"); 98 } 99 r.stop(); 100 List<RecordedEvent> events = Events.fromRecording(r); 101 Events.hasEvents(events); 102 for (RecordedEvent e : events) { 103 RecordedStackTrace rs = e.getStackTrace(); 104 RecordedClass rc = e.getValue("thrownClass"); 105 List<RecordedFrame> frames = rs.getFrames(); 106 RecordedFrame topFrame = frames.get(0); 107 System.out.println(rc.getName() + " Top frame: " + topFrame.getMethod().getName()); 108 if (!topFrame.getMethod().getName().equals("<init>")) { 109 throw new Exception("Expected name of top frame to be <init>"); 110 } 111 } 112 } 113 } 114 115 private static Recording createRecording() throws Exception { 116 Recording recording = new Recording(); 117 recording.enable(EXCEPTION_STATISTICS_PATH); 118 recording.enable(EXCEPTION_EVENT_PATH).withThreshold(Duration.ofMillis(0)); 119 recording.enable(ERROR_EVENT_PATH).withThreshold(Duration.ofMillis(0)); 120 recording.start(); 121 122 for (int i = 0; i < ITERATIONS; i++) { 123 try { 124 throw new MyException(EXCEPTION_MESSAGE); 125 } catch (MyException e) { 126 exceptionCount++; 127 } 128 try { 129 throw new MyError(ERROR_MESSAGE); 130 } catch (MyError e) { 131 exceptionCount++; 132 } 133 try { 134 throw new MyThrowable(THROWABLE_MESSAGE); 135 } catch (MyThrowable t) { 136 exceptionCount++; 137 } 138 } 139 recording.stop(); 140 return recording; 141 } 142 143 144 private static void checkStatisticsEvent(List<RecordedEvent> events, long minCount) throws Exception { 145 // Events are not guaranteed to be in chronological order, take highest value. 146 long count = -1; 147 for(RecordedEvent event : events) { 148 if (Events.isEventType(event, EXCEPTION_STATISTICS_PATH)) { 149 System.out.println("Event: " + event); 150 count = Math.max(count, Events.assertField(event, "throwables").getValue()); 151 System.out.println("count=" + count); 152 } 153 } 154 Asserts.assertTrue(count != -1, "No events of type " + EXCEPTION_STATISTICS_PATH); 155 Asserts.assertGreaterThanOrEqual(count, minCount, "Too few exception count in statistics event"); 156 } 157 158 private static void checkThrowableEvents(List<RecordedEvent> events, String eventName, 159 int excpectedEvents, Class<?> expectedClass, String expectedMessage) throws Exception { 160 int count = 0; 161 for(RecordedEvent event : events) { 162 if (Events.isEventType(event, eventName)) { 163 String message = Events.assertField(event, "message").getValue(); 164 if (expectedMessage.equals(message)) { 165 RecordedThread t = event.getThread(); 166 String threadName = t.getJavaName(); 167 if (threadName != null && threadName.equals(Thread.currentThread().getName())) { 168 RecordedClass jc = event.getValue("thrownClass"); 169 if (jc.getName().equals(expectedClass.getName())) { 170 count++; 171 } 172 } 173 } 174 } 175 } 176 Asserts.assertEquals(count, excpectedEvents, "Wrong event count for type " + eventName); 177 } 178 179 private static class MyException extends Exception { 180 private static final long serialVersionUID = -2614309279743448910L; 181 public MyException(String msg) { 182 super(msg); 183 } 184 } 185 186 private static class MyError extends Error { 187 private static final long serialVersionUID = -8519872786387358196L; 188 public MyError(String msg) { 189 super(msg); 190 } 191 } 192 193 private static class MyThrowable extends Throwable { 194 private static final long serialVersionUID = -7929442863511070361L; 195 public MyThrowable(String msg) { 196 super(msg); 197 } 198 } 199 }