/*
* Copyright ( c ) 2005 , 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
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
import com.sun.tools.attach.VirtualMachine;
import com.sun.tools.attach.AttachNotSupportedException;
import java.io.File;
import jdk.test.lib.thread .ProcessThread;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
/*
* @ test
* @ bug 6173612 6273707 6277253 6335921 6348630 6342019 6381757
* @ summary Basic unit tests for the VM attach mechanism . Unit test for Attach
* API - this checks that a SecurityException is thrown as expected .
*
* @ library / test / lib
* @ modules jdk . attach
* jdk . jartool / sun . tools . jar
*
* @ run build Application
* @ run main PermissionTest
*/
public class PermissionTest {
/*
* The actual test is in the nested class TestMain .
* The responsibility of this class is to :
* 1 . Start the Application class in a separate process .
* 2 . Find the pid and shutdown port of the running Application .
* 3 . Run the tests in TstMain that will attach to the Application .
* 4 . Shut down the Application .
*/
public static void main(String args[]) throws Throwable {
ProcessThread processThread = null ;
try {
processThread = RunnerUtil.startApplication();
runTests(processThread.getPid());
} catch (Throwable t) {
System.out.println("TestPermission got unexpected exception: " + t);
t.printStackTrace();
throw t;
} finally {
// Make sure the Application process is stopped.
RunnerUtil.stopApplication(processThread);
}
}
/**
* Runs the actual test the nested class TestMain .
* The test is run in a separate process because we need to add to the classpath .
*/
private static void runTests(long pid) throws Throwable {
final String sep = File.separator;
String classpath =
System.getProperty("test.class.path" , "" );
String testSrc = System.getProperty("test.src" , "" ) + sep;
// Use a policy that will NOT allow attach. Test will verify exception.
String[] args = {
"-classpath" ,
classpath,
"-Djava.security.manager" ,
String.format("-Djava.security.policy=%sjava.policy.deny" , testSrc),
"PermissionTest$TestMain" ,
Long .toString(pid),
"true" };
OutputAnalyzer output = ProcessTools.executeTestJvm(args);
output.shouldHaveExitValue(0 );
// Use a policy that will allow attach.
args = new String[] {
"-classpath" ,
classpath,
"-Djava.security.manager" ,
String.format("-Djava.security.policy=%sjava.policy.allow" , testSrc),
"PermissionTest$TestMain" ,
Long .toString(pid),
"false" };
output = ProcessTools.executeTestJvm(args);
output.shouldHaveExitValue(0 );
}
/**
* This is the actual test code . It will attach to the Application and verify
* that we get a SecurityException when that is expected .
*/
public static class TestMain {
public static void main(String args[]) throws Exception {
SecurityManager sm = System.getSecurityManager();
if (sm == null ) {
throw new RuntimeException("Test configuration error - no security manager set" );
}
String pid = args[0 ];
boolean shouldFail = Boolean .parseBoolean(args[1 ]);
try {
VirtualMachine.attach(pid).detach();
if (shouldFail) {
throw new RuntimeException("SecurityException should be thrown" );
}
System.out.println(" - attached to target VM as expected." );
} catch (Exception x) {
// AttachNotSupportedException thrown when no providers can be loaded
if (shouldFail && ((x instanceof AttachNotSupportedException) ||
(x instanceof SecurityException))) {
System.out.println(" - exception thrown as expected." );
} else {
throw x;
}
}
}
}
}
Messung V0.5 in Prozent C=94 H=84 G=88
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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