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[WFLY-18370] Test the application classloader is used for the sar lif…
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…ecycle methods

Also, double-check this is the case when accessing attributes and invoking methods.
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kabir committed Sep 18, 2023
1 parent 69db5fd commit f311c4c
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2023, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.test.integration.sar.context.classloader.app;

import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.security.AccessController;
import java.security.PrivilegedExceptionAction;
import java.util.Properties;

public class MBeanAppClassLoaderTCCLCheckService implements MBeanAppClassLoaderTCCLCheckServiceMBean {

public static final String APP_CL = "application-loader";
public static final String CONSTRUCTOR_TCCL = "constructor-tccl";
public static final String ATTR_WRITE_TCCL = "attr-write-tccl";
public static final String ATTR_READ_TCCL = "attr-read-tccl";
public static final String INVOKE_TCCL = "invoke-tccl";
public static final String CREATE_TCCL = "create-tccl";
public static final String START_TCCL = "start-tccl";
public static final String STOP_TCCL = "stop-tccl";
public static final String DESTROY_TCCL = "destroy-tccl";

private final Properties properties = new Properties();
private volatile Path file;

public MBeanAppClassLoaderTCCLCheckService() {
properties.put(APP_CL, String.valueOf(System.identityHashCode(this.getClass().getClassLoader())));
storeTccl(CONSTRUCTOR_TCCL);
}

@Override
public void create() throws Exception {
storeTccl(CREATE_TCCL);
}

@Override
public void start() throws Exception {
storeTccl(START_TCCL);
}

@Override
public void stop() {
storeTccl(STOP_TCCL);
}

@Override
public void destroy() {
storeTccl(DESTROY_TCCL);
}

@Override
public void setFile(String path) throws Exception {
System.out.println("setFile " + path);
storeTccl(ATTR_WRITE_TCCL);
if (file == null) {
file = Path.of(path);
properties.store(new BufferedOutputStream(new FileOutputStream(file.toFile())), "Test");
} else {
throw new IllegalStateException("Only called once");
}
}

@Override
public String getFile() {
storeTccl(ATTR_READ_TCCL);
return null;
}

@Override
public void method() {
storeTccl(INVOKE_TCCL);
}

private void storeTccl(String id) {
System.out.println("storeTccl " + id);
ClassLoader cl = Thread.currentThread().getContextClassLoader();
String clId = String.valueOf(System.identityHashCode(cl));
if (file == null) {
properties.put(id, clId);
} else {
try {
String s = id + "=" + clId + "\n";
AccessController.doPrivileged((PrivilegedExceptionAction<Void>) () -> {
Files.write(file, s.getBytes(StandardCharsets.UTF_8), StandardOpenOption.APPEND);
return null;
});
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}

}
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2023, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/package org.jboss.as.test.integration.sar.context.classloader.app;

public interface MBeanAppClassLoaderTCCLCheckServiceMBean {
// Service lifecycle methods
void create() throws Exception;
void start() throws Exception;
void stop();
void destroy();
// Attribute
void setFile(String path) throws Exception;
String getFile();
// A method
void method();
}
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2023, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.test.integration.sar.context.classloader.app;

import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.container.test.api.RunAsClient;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.as.arquillian.api.ContainerResource;
import org.jboss.as.arquillian.container.ManagementClient;
import org.jboss.as.controller.PathAddress;
import org.jboss.as.controller.operations.common.Util;
import org.jboss.as.test.integration.common.DefaultConfiguration;
import org.jboss.dmr.ModelNode;
import org.jboss.shrinkwrap.api.Archive;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.shrinkwrap.api.spec.JavaArchive;
import org.junit.After;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.xnio.IoUtils;

import javax.management.Attribute;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import java.io.BufferedReader;
import java.io.FilePermission;
import java.io.FileReader;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Properties;

import static org.jboss.as.test.shared.PermissionUtils.createPermissionsXmlAsset;

@RunWith(Arquillian.class)
@RunAsClient
public class MBeanAppClassLoaderTCCLTestCase {

@ContainerResource
private ManagementClient managementClient;

private JMXConnector connector;

private static final String SAR_NAME = "test-app-tccl.sar";

static Path outputPath = Path.of("target/app-cl" + System.currentTimeMillis() + "/tccl.properties");

@Deployment
public static Archive createDeployment() {
final JavaArchive sar = ShrinkWrap.create(JavaArchive.class, SAR_NAME);
// add the jboss-service.xml to the META-INF of the .sar
sar.addAsManifestResource(MBeanAppClassLoaderTCCLCheckService.class.getPackage(), "tccl-app-test-service.xml", "jboss-service.xml");
// add some (dummy) classes to the .sar. These classes will then be attempted to be loaded from the MBean class (which resides in a module)
sar.addClasses(MBeanAppClassLoaderTCCLCheckService.class, MBeanAppClassLoaderTCCLCheckServiceMBean.class);
sar.addAsManifestResource(createPermissionsXmlAsset(
new FilePermission(outputPath.toAbsolutePath().toString(), "read"),
new FilePermission(outputPath.toAbsolutePath().toString(), "write")
), "permissions.xml");

return sar;
}

@After
public void closeConnector() {
IoUtils.safeClose(connector);
}

/**
* Tests the MBean was deployed successfully and can be invoked. The fact that the MBean deployed successfully is a sign that the TCCL access from within the MBean code, worked fine
*
* @throws Exception
*/
@Test
public void testTCCLInMBeanInvocation() throws Exception {
final MBeanServerConnection mBeanServerConnection = this.getMBeanServerConnection();
final ObjectName mbeanObjectName = new ObjectName("wildfly:name=tccl-app-test-mbean");

//Path tmp = Path.of("target/app-cl" + System.currentTimeMillis() + "/tccl.properties");
try {
Files.createDirectories(outputPath.getParent());
Files.createFile(outputPath);
mBeanServerConnection.setAttribute(mbeanObjectName, new Attribute("File", outputPath.toAbsolutePath().toString()));
mBeanServerConnection.getAttribute(mbeanObjectName, "File");
mBeanServerConnection.invoke(mbeanObjectName, "method", new Object[0], new String[0]);

// Undeploy so that the stop and destroy methods get called
ModelNode removeOp = Util.createRemoveOperation(PathAddress.pathAddress("deployment", SAR_NAME));
managementClient.getControllerClient().execute(removeOp);

Properties props = new Properties();
props.load(new BufferedReader(new FileReader(outputPath.toFile())));
String appCl = props.getProperty(MBeanAppClassLoaderTCCLCheckService.APP_CL);
Assert.assertNotNull(MBeanAppClassLoaderTCCLCheckService.APP_CL, appCl);

checkProperty(props, MBeanAppClassLoaderTCCLCheckService.CONSTRUCTOR_TCCL, appCl);
checkProperty(props, MBeanAppClassLoaderTCCLCheckService.CREATE_TCCL, appCl);
checkProperty(props, MBeanAppClassLoaderTCCLCheckService.START_TCCL, appCl);
checkProperty(props, MBeanAppClassLoaderTCCLCheckService.ATTR_WRITE_TCCL, appCl);
checkProperty(props, MBeanAppClassLoaderTCCLCheckService.ATTR_READ_TCCL, appCl);
checkProperty(props, MBeanAppClassLoaderTCCLCheckService.INVOKE_TCCL, appCl);
checkProperty(props, MBeanAppClassLoaderTCCLCheckService.STOP_TCCL, appCl);
checkProperty(props, MBeanAppClassLoaderTCCLCheckService.DESTROY_TCCL, appCl);

} finally {
Files.delete(outputPath);
Files.delete(outputPath.getParent());
}
}

private void checkProperty(Properties props, String key, String expected) {
Object value = props.get(key);
Assert.assertNotNull(key, value);
Assert.assertEquals(key, expected, value);
}

private MBeanServerConnection getMBeanServerConnection() throws IOException {
connector = JMXConnectorFactory.connect(managementClient.getRemoteJMXURL(), DefaultConfiguration.credentials());
return connector.getMBeanServerConnection();
}
}
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<!--
~ JBoss, Home of Professional Open Source.
~ Copyright 2023, Red Hat, Inc., and individual contributors
~ as indicated by the @author tags. See the copyright.txt file in the
~ distribution for a full listing of individual contributors.
~
~ This is free software; you can redistribute it and/or modify it
~ under the terms of the GNU Lesser General Public License as
~ published by the Free Software Foundation; either version 2.1 of
~ the License, or (at your option) any later version.
~
~ This software 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
~ Lesser General Public License for more details.
~
~ You should have received a copy of the GNU Lesser General Public
~ License along with this software; if not, write to the Free
~ Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
~ 02110-1301 USA, or see the FSF site: http://www.fsf.org.
-->
<server xmlns="urn:jboss:service:7.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:jboss:service:7.0 jboss-service_7_0.xsd">

<mbean name="wildfly:name=tccl-app-test-mbean" code="org.jboss.as.test.integration.sar.context.classloader.app.MBeanAppClassLoaderTCCLCheckService">
</mbean>
</server>

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