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/*
* Copyright (c) 2023, 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 static jdk.test.lib.Asserts.*;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.jar.Attributes;
import java.util.jar.Manifest;
import java.util.List;
import com.sun.management.HotSpotDiagnosticMXBean;
import com.sun.management.VMOption;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.Utils;
import jdk.test.lib.util.JarUtils;
/*
* @test id=default
* @bug 8304438
* @summary JVMTI.agent_load should obey EnableDynamicAgentLoading (by default)
* @modules jdk.attach jdk.jcmd
* @library /test/lib
* @build JavaAgent
* @run main/othervm TestJcmdNoAgentLoad
*/
/*
* @test id=disabled
* @bug 8304438
* @summary JVMTI.agent_load should obey EnableDynamicAgentLoading (disabled)
* @modules jdk.attach jdk.jcmd
* @library /test/lib
* @build JavaAgent
* @run main/othervm -XX:-EnableDynamicAgentLoading TestJcmdNoAgentLoad
*/
/*
* @test id=enabled
* @bug 8304438
* @summary JVMTI.agent_load should obey EnableDynamicAgentLoading (enabled)
* @modules jdk.attach jdk.jcmd
* @library /test/lib
* @build JavaAgent
* @run main/othervm -XX:+EnableDynamicAgentLoading TestJcmdNoAgentLoad
*/
public class TestJcmdNoAgentLoad {
private static final String PTRN = "Dynamic agent loading is not enabled";
private static boolean dynamicLoadingEnabled = true;
private static final String TEST_CLASSES = System.getProperty("test.classes");
private static String javaAgent;
static {
// get VM option EnableDynamicAgentLoading value
HotSpotDiagnosticMXBean bean = ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
VMOption dynamicLoadingEnabledOpt = bean.getVMOption("EnableDynamicAgentLoading");
dynamicLoadingEnabled = dynamicLoadingEnabledOpt.getValue().equals("true");
}
public static void main(String[] args) throws Exception {
setup();
testNoAgentLoad(new String[] { "JVMTI.agent_load", javaAgent });
}
private static void setup() throws Exception {
// create JAR file with Java agent
Manifest man = new Manifest();
Attributes attrs = man.getMainAttributes();
attrs.put(Attributes.Name.MANIFEST_VERSION, "1.0");
attrs.put(new Attributes.Name("Agent-Class"), "JavaAgent");
Path jarfile = Path.of("javaagent.jar");
Path classes = Path.of(TEST_CLASSES);
JarUtils.createJarFile(jarfile, man, classes, Path.of("JavaAgent.class"));
javaAgent = jarfile.toString();
}
private static void testNoAgentLoad(String... jcmdArgs) throws Exception {
OutputAnalyzer output = JcmdBase.jcmd(jcmdArgs);
output.shouldHaveExitValue(0);
if (dynamicLoadingEnabled) {
output.shouldNotContain(PTRN);
} else {
output.shouldContain(PTRN);
}
}
}
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