/*
* Copyright ( c ) 2020 , 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
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
package jdk.jfr.jmx.streaming;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.lang.management.ManagementFactory;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import jdk.management.jfr.FlightRecorderMXBean;
import jdk.management.jfr.RemoteRecordingStream;
/**
* @ test
* @ key jfr
* @ summary Test constructors of RemoteRecordingStream
* @ requires vm . hasJFR
* @ library / test / lib / test / jdk
* @ run main / othervm jdk . jfr . jmx . streaming . TestNew
*/
public class TestNew {
private final static ObjectName MXBEAN = createObjectName();
public static void main(String... args) throws Exception {
testNullArguments();
testMissingDirectory();
testNotDirectory();
testDefaultDIrectory();
TestUserDefinedDirectory();
testMissingFlightRecorderMXBean();
}
private static void TestUserDefinedDirectory() throws IOException {
Path p = Paths.get("user-repository-" + System.currentTimeMillis());
Files.createDirectory(p);
MBeanServerConnection conn = ManagementFactory.getPlatformMBeanServer();
try (RemoteRecordingStream s = new RemoteRecordingStream(conn, p)) {
// success
}
}
private static void testDefaultDIrectory() throws IOException {
MBeanServerConnection conn = ManagementFactory.getPlatformMBeanServer();
try (RemoteRecordingStream s = new RemoteRecordingStream(conn)) {
// success
}
}
private static void testNotDirectory() throws Exception {
Path p = Paths.get("file.txt" );
RandomAccessFile raf = new RandomAccessFile(p.toFile(), "rw" );
raf.close();
MBeanServerConnection conn = ManagementFactory.getPlatformMBeanServer();
try (var s = new RemoteRecordingStream(conn, p)) {
throw new Exception("Expected IOException" );
} catch (IOException ioe) {
if (!ioe.getMessage().contains("Download location must be a directory" )) {
throw new Exception("Unexpected message " + ioe.getMessage());
}
}
}
private static void testMissingDirectory() throws Exception {
Path p = Paths.get("/missing" );
MBeanServerConnection conn = ManagementFactory.getPlatformMBeanServer();
try (var s = new RemoteRecordingStream(conn, p)) {
throw new Exception("Expected IOException" );
} catch (IOException ioe) {
if (!ioe.getMessage().contains("Download directory doesn't exist" )) {
throw new Exception("Unexpected message " + ioe.getMessage());
}
}
}
private static void testNullArguments() throws Exception {
try (var s = new RemoteRecordingStream(null )) {
throw new Exception("Expected NullPointerException" );
} catch (NullPointerException npe) {
// as expected
}
MBeanServerConnection conn = ManagementFactory.getPlatformMBeanServer();
try (var s = new RemoteRecordingStream(conn, null )) {
throw new Exception("Expected NullPointerException" );
} catch (NullPointerException npe) {
// as expected
}
}
private static void testMissingFlightRecorderMXBean() throws Exception {
MBeanServerConnection conn = ManagementFactory.getPlatformMBeanServer();
conn.unregisterMBean(MXBEAN);
try (var s = new RemoteRecordingStream(conn)) {
throw new Exception("Expected IOException" );
} catch (IOException npe) {
// as expected
}
}
private static ObjectName createObjectName() {
try {
return new ObjectName(FlightRecorderMXBean.MXBEAN_NAME);
} catch (Exception e) {
throw new InternalError("Unexpected exception" , e);
}
}
}
Messung V0.5 in Prozent C=94 H=90 G=91
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
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