/*
* Copyright ( c ) 2018 , 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
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*/
package jdk.jfr.api.consumer;
import static jdk.test.lib.Asserts.assertEquals;
import static jdk.test.lib.Asserts.assertNotNull;
import static jdk.test.lib.Asserts.assertNull;
import static jdk.test.lib.Asserts.assertTrue;
import java.util.List;
import jdk.jfr.Recording;
import jdk.jfr.consumer.RecordedEvent;
import jdk.jfr.consumer.RecordedFrame;
import jdk.jfr.consumer.RecordedMethod;
import jdk.jfr.consumer.RecordedStackTrace;
import jdk.test.lib.Asserts;
import jdk.test.lib.jfr.Events;
import jdk.test.lib.jfr.SimpleEvent;
/**
* @ test
* @ summary Verifies that a recorded JFR event has the correct stack trace info
* @ key jfr
* @ requires vm . hasJFR
* @ library / test / lib
* @ run main / othervm jdk . jfr . api . consumer . TestGetStackTrace
*/
public class TestGetStackTrace {
public static void main(String[] args) throws Throwable {
testWithoutStackTrace(recordEvent("stackTrace" , "false" ));
testWithStackTrace(recordEvent("stackTrace" , "true" ));
}
private static RecordedEvent recordEvent(String key, String value) throws Throwable {
try (Recording r = new Recording()) {
r.enable(SimpleEvent.class ).with(key, value);
r.start();
SimpleEvent event = new SimpleEvent();
event.commit();
r.stop();
return Events.fromRecording(r).get(0 );
}
}
private static void testWithoutStackTrace(RecordedEvent re) {
assertNull(re.getStackTrace());
}
private static void testWithStackTrace(RecordedEvent re) {
assertNotNull(re.getStackTrace());
RecordedStackTrace strace = re.getStackTrace();
assertEquals(strace.isTruncated(), false );
List<RecordedFrame> frames = strace.getFrames();
assertTrue(frames.size() > 0 );
for (RecordedFrame frame : frames) {
assertFrame(frame);
}
}
private static void assertFrame(RecordedFrame frame) {
int bci = frame.getBytecodeIndex();
int line = frame.getLineNumber();
boolean javaFrame = frame.isJavaFrame();
RecordedMethod method = frame.getMethod();
String type = frame.getType();
System.out.println("*** Frame Info ***" );
System.out.println("bci=" + bci);
System.out.println("line=" + line);
System.out.println("type=" + type);
System.out.println("method=" + method);
System.out.println("***" );
Asserts.assertTrue(javaFrame, "Only Java frame are currently supported" );
Asserts.assertGreaterThanOrEqual(bci, -1 );
Asserts.assertNotNull(method, "Method should not be null" );
}
}
Messung V0.5 in Prozent C=97 H=85 G=91
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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