/*
* Copyright ( c ) 2014 , 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 .
*
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*/
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import jdk.test.lib.process.ProcessTools;
import com.sun.jdi.Bootstrap;
import com.sun.jdi.VirtualMachine;
import com.sun.jdi.connect.AttachingConnector;
import com.sun.jdi.connect.Connector;
import com.sun.jdi.connect.IllegalConnectorArgumentsException;
/**
* @ test
* @ bug 4527279
* @ summary Unit test for ProcessAttachingConnector
*
* @ library / test / lib
* @ modules java . management
* jdk . jdi
* @ build ProcessAttachTest
* @ run driver ProcessAttachTest
*/
class ProcessAttachTestTarg {
public static void main(String args[]) throws Exception {
// Write something that can be read by the driver
System.out.println("Debuggee started" );
System.out.flush();
for (;;) {
Thread .sleep(100 );
}
}
}
public class ProcessAttachTest {
public static final String TESTCLASSES = System.getProperty("test.classes" );
public static void main(String[] args) throws Exception {
System.out.println("Test 1: Debuggee start with suspend=n" );
runTest("-agentlib:jdwp=transport=dt_socket,server=y,suspend=n" );
System.out.println("Test 2: Debuggee start with suspend=y" );
runTest("-agentlib:jdwp=transport=dt_socket,server=y,suspend=y" );
}
private static void runTest(String jdwpArg) throws Exception {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
jdwpArg,
"-classpath" , TESTCLASSES,
"ProcessAttachTestTarg" );
Process p = null ;
try {
p = pb.start();
// Wait for the process to start
InputStream is = p.getInputStream();
is.read();
// Attach a debugger
tryDebug(p.pid());
} finally {
p.destroyForcibly();
}
}
private static void tryDebug(long pid) throws IOException,
IllegalConnectorArgumentsException {
AttachingConnector ac = Bootstrap.virtualMachineManager().attachingConnectors()
.stream()
.filter(c -> c.name().equals("com.sun.jdi.ProcessAttach" ))
.findFirst()
.orElseThrow(() -> new RuntimeException("Unable to locate ProcessAttachingConnector" ));
Map<String, Connector.Argument> args = ac.defaultArguments();
Connector.StringArgument arg = (Connector.StringArgument) args
.get("pid" );
arg.setValue("" + pid);
System.out.println("Debugger is attaching to: " + pid + " ..." );
VirtualMachine vm = ac.attach(args);
// list all threads
System.out.println("Attached! Now listing threads ..." );
vm.allThreads().stream().forEach(System.out::println);
System.out.println("Debugger done." );
vm.dispose();
}
}
Messung V0.5 in Prozent C=88 H=92 G=89
¤ Dauer der Verarbeitung: 0.2 Sekunden
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