8044135: Add API to start JMX agent from attach framework

Reviewed-by: alanb
This commit is contained in:
Staffan Larsen 2014-06-11 15:47:53 +02:00
parent 66135672e1
commit 855f7c421e
9 changed files with 393 additions and 266 deletions

View File

@ -76,16 +76,10 @@ import java.io.IOException;
* // attach to target VM
* VirtualMachine vm = VirtualMachine.attach("2177");
*
* // get system properties in target VM
* Properties props = vm.getSystemProperties();
*
* // construct path to management agent
* String home = props.getProperty("java.home");
* String agent = home + File.separator + "lib" + File.separator
* + "management-agent.jar";
*
* // load agent into target VM
* vm.loadAgent(agent, "com.sun.management.jmxremote.port=5000");
* // start management agent
* Properties props = new Properties();
* props.put("com.sun.management.jmxremote.port", "5000");
* vm.startManagementAgent(props);
*
* // detach
* vm.detach();
@ -93,9 +87,9 @@ import java.io.IOException;
* </pre>
*
* <p> In this example we attach to a Java virtual machine that is identified by
* the process identifier <code>2177</code>. The system properties from the target
* VM are then used to construct the path to a <i>management agent</i> which is then
* loaded into the target VM. Once loaded the client detaches from the target VM. </p>
* the process identifier <code>2177</code>. Then the JMX management agent is
* started in the target process using the supplied arguments. Finally, the
* client detaches from the target VM. </p>
*
* <p> A VirtualMachine is safe for use by multiple concurrent threads. </p>
*
@ -610,6 +604,68 @@ public abstract class VirtualMachine {
*/
public abstract Properties getAgentProperties() throws IOException;
/**
* Starts the JMX management agent in the target virtual machine.
*
* <p> The configuration properties are the same as those specified on
* the command line when starting the JMX management agent. In the same
* way as on the command line, you need to specify at least the
* {@code com.sun.management.jmxremote.port} property.
*
* <p> See the online documentation for <a
* href="../../../../../../../../technotes/guides/management/agent.html">
* Monitoring and Management Using JMX Technology</a> for further details.
*
* @param agentProperties
* A Properties object containing the configuration properties
* for the agent.
*
* @throws AttachOperationFailedException
* If the target virtual machine is unable to complete the
* attach operation. A more specific error message will be
* given by {@link AttachOperationFailedException#getMessage()}.
*
* @throws IOException
* If an I/O error occurs, a communication error for example,
* that cannot be identified as an error to indicate that the
* operation failed in the target VM.
*
* @throws IllegalArgumentException
* If keys or values in agentProperties are invalid.
*
* @throws NullPointerException
* If agentProperties is null.
*
* @since 1.9
*/
public abstract void startManagementAgent(Properties agentProperties) throws IOException;
/**
* Starts the local JMX management agent in the target virtual machine.
*
* <p> See the online documentation for <a
* href="../../../../../../../../technotes/guides/management/agent.html">
* Monitoring and Management Using JMX Technology</a> for further details.
*
* @return The String representation of the local connector's service address.
* The value can be parsed by the
* {@link javax.management.remote.JMXServiceURL#JMXServiceURL(String)}
* constructor.
*
* @throws AttachOperationFailedException
* If the target virtual machine is unable to complete the
* attach operation. A more specific error message will be
* given by {@link AttachOperationFailedException#getMessage()}.
*
* @throws IOException
* If an I/O error occurs, a communication error for example,
* that cannot be identified as an error to indicate that the
* operation failed in the target VM.
*
* @since 1.9
*/
public abstract String startLocalManagementAgent() throws IOException;
/**
* Returns a hash-code value for this VirtualMachine. The hash
* code is based upon the VirtualMachine's components, and satifies

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@ -33,7 +33,7 @@ import com.sun.tools.attach.spi.AttachProvider;
import java.io.InputStream;
import java.io.IOException;
import java.util.Properties;
import java.util.Map;
import java.util.stream.Collectors;
/*
* The HotSpot implementation of com.sun.tools.attach.VirtualMachine.
@ -161,6 +161,50 @@ public abstract class HotSpotVirtualMachine extends VirtualMachine {
return props;
}
private static final String MANAGMENT_PREFIX = "com.sun.management.";
private static boolean checkedKeyName(Object key) {
if (!(key instanceof String)) {
throw new IllegalArgumentException("Invalid option (not a String): "+key);
}
if (!((String)key).startsWith(MANAGMENT_PREFIX)) {
throw new IllegalArgumentException("Invalid option: "+key);
}
return true;
}
private static String stripKeyName(Object key) {
return ((String)key).substring(MANAGMENT_PREFIX.length());
}
@Override
public void startManagementAgent(Properties agentProperties) throws IOException {
if (agentProperties == null) {
throw new NullPointerException("agentProperties cannot be null");
}
// Convert the arguments into arguments suitable for the Diagnostic Command:
// "ManagementAgent.start jmxremote.port=5555 jmxremote.authenticate=false"
String args = agentProperties.entrySet().stream()
.filter(entry -> checkedKeyName(entry.getKey()))
.map(entry -> stripKeyName(entry.getKey()) + "=" + escape(entry.getValue()))
.collect(Collectors.joining(" "));
executeJCmd("ManagementAgent.start " + args);
}
private String escape(Object arg) {
String value = arg.toString();
if (value.contains(" ")) {
return "'" + value + "'";
}
return value;
}
@Override
public String startLocalManagementAgent() throws IOException {
executeJCmd("ManagementAgent.start_local");
return getAgentProperties().getProperty("com.sun.management.jmxremote.localConnectorAddress");
}
// --- HotSpot specific methods ---
// same as SIGQUIT

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@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2014, 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
@ -32,8 +32,6 @@ import java.io.File;
// Sun specific
import com.sun.tools.attach.VirtualMachine;
import com.sun.tools.attach.VirtualMachineDescriptor;
import com.sun.tools.attach.AgentInitializationException;
import com.sun.tools.attach.AgentLoadException;
import com.sun.tools.attach.AttachNotSupportedException;
// Sun private
@ -238,35 +236,7 @@ public class LocalVirtualMachine {
throw ioe;
}
String home = vm.getSystemProperties().getProperty("java.home");
// Normally in ${java.home}/jre/lib/management-agent.jar but might
// be in ${java.home}/lib in build environments.
String agent = home + File.separator + "jre" + File.separator +
"lib" + File.separator + "management-agent.jar";
File f = new File(agent);
if (!f.exists()) {
agent = home + File.separator + "lib" + File.separator +
"management-agent.jar";
f = new File(agent);
if (!f.exists()) {
throw new IOException("Management agent not found");
}
}
agent = f.getCanonicalPath();
try {
vm.loadAgent(agent, "com.sun.management.jmxremote");
} catch (AgentLoadException x) {
IOException ioe = new IOException(x.getMessage());
ioe.initCause(x);
throw ioe;
} catch (AgentInitializationException x) {
IOException ioe = new IOException(x.getMessage());
ioe.initCause(x);
throw ioe;
}
vm.startLocalManagementAgent();
// get the connector address
Properties agentProps = vm.getAgentProperties();

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@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2014, 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
@ -100,4 +100,12 @@ class SimpleVirtualMachine extends VirtualMachine {
public void dataDumpRequest() throws IOException {
}
public String startLocalManagementAgent() {
return null;
}
public void startManagementAgent(Properties agentProperties) {
}
}

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@ -0,0 +1,211 @@
/*
* Copyright (c) 2014 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.AttachOperationFailedException;
import com.sun.tools.attach.VirtualMachine;
import java.io.File;
import java.io.FileWriter;
import java.util.Properties;
import java.util.HashMap;
import javax.management.remote.JMXServiceURL;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import jdk.testlibrary.ProcessThread;
import jdk.testlibrary.Utils;
/*
* @test
* @summary Test for VirtualMachine.startManagementAgent and VirtualMachine.startLocalManagementAgent
* @library /lib/testlibrary
* @run build Application Shutdown
* @run main StartManagementAgent
*/
/*
* This test is not meant to test all possible configuration parameters to
* the JMX agent, there are other tests for that. This test makes sure it is
* possible to start the agent via attach.
*/
public class StartManagementAgent {
public static void main(String[] args) throws Throwable {
final String pidFile = "StartManagementAgent.Application.pid";
ProcessThread processThread = null;
RunnerUtil.ProcessInfo info = null;
try {
processThread = RunnerUtil.startApplication(pidFile);
info = RunnerUtil.readProcessInfo(pidFile);
runTests(info.pid);
} catch (Throwable t) {
System.out.println("StartManagementAgent got unexpected exception: " + t);
t.printStackTrace();
throw t;
} finally {
// Make sure the Application process is stopped.
RunnerUtil.stopApplication(info.shutdownPort, processThread);
}
}
private static void basicTests(VirtualMachine vm) throws Exception {
// Try calling with null argument
boolean exception = false;
try {
vm.startManagementAgent(null);
} catch (NullPointerException e) {
exception = true;
}
if (!exception) {
throw new Exception("startManagementAgent(null) should throw NPE");
}
// Try calling with a property value with a space in it
Properties p = new Properties();
File f = new File("file with space");
try (FileWriter fw = new FileWriter(f)) {
fw.write("com.sun.management.jmxremote.port=apa");
}
p.put("com.sun.management.config.file", f.getAbsolutePath());
try {
vm.startManagementAgent(p);
} catch(AttachOperationFailedException ex) {
// We expect parsing of "apa" above to fail, but if the file path
// can't be read we get a different exception message
if (!ex.getMessage().contains("java.lang.NumberFormatException")) {
throw ex;
}
}
}
private static final String LOCAL_CONNECTOR_ADDRESS_PROP =
"com.sun.management.jmxremote.localConnectorAddress";
private static final int MAX_RETRIES = 10;
public static void runTests(int pid) throws Exception {
VirtualMachine vm = VirtualMachine.attach(""+pid);
try {
basicTests(vm);
testLocalAgent(vm);
// we retry the remote case several times in case the error
// was caused by a port conflict
int i = 0;
boolean success = false;
do {
try {
System.err.println("Trying remote agent. Try #" + i);
testRemoteAgent(vm);
success = true;
} catch(Exception ex) {
System.err.println("testRemoteAgent failed with exception:");
ex.printStackTrace();
System.err.println("Retrying.");
}
i++;
} while(!success && i < MAX_RETRIES);
if (!success) {
throw new Exception("testRemoteAgent failed after " + MAX_RETRIES + " tries");
}
} finally {
vm.detach();
}
}
public static void testLocalAgent(VirtualMachine vm) throws Exception {
Properties agentProps = vm.getAgentProperties();
String address = (String) agentProps.get(LOCAL_CONNECTOR_ADDRESS_PROP);
if (address != null) {
throw new Exception("Local management agent already started");
}
String result = vm.startLocalManagementAgent();
// try to parse the return value as a JMXServiceURL
new JMXServiceURL(result);
agentProps = vm.getAgentProperties();
address = (String) agentProps.get(LOCAL_CONNECTOR_ADDRESS_PROP);
if (address == null) {
throw new Exception("Local management agent could not be started");
}
}
public static void testRemoteAgent(VirtualMachine vm) throws Exception {
int port = Utils.getFreePort();
// try to connect - should fail
tryConnect(port, false);
// start agent
System.out.println("Starting agent on port: " + port);
Properties mgmtProps = new Properties();
mgmtProps.put("com.sun.management.jmxremote.port", port);
mgmtProps.put("com.sun.management.jmxremote.authenticate", "false");
mgmtProps.put("com.sun.management.jmxremote.ssl", "false");
vm.startManagementAgent(mgmtProps);
// try to connect - should work
tryConnect(port, true);
// try to start again - should fail
boolean exception = false;
try {
vm.startManagementAgent(mgmtProps);
} catch(AttachOperationFailedException ex) {
// expected
exception = true;
}
if (!exception) {
throw new Exception("Expected the second call to vm.startManagementAgent() to fail");
}
}
private static void tryConnect(int port, boolean shouldSucceed) throws Exception {
String jmxUrlStr =
String.format(
"service:jmx:rmi:///jndi/rmi://localhost:%d/jmxrmi",
port);
JMXServiceURL url = new JMXServiceURL(jmxUrlStr);
HashMap<String, ?> env = new HashMap<>();
boolean succeeded;
try {
JMXConnector c = JMXConnectorFactory.connect(url, env);
c.getMBeanServerConnection();
succeeded = true;
} catch(Exception ex) {
succeeded = false;
}
if (succeeded && !shouldSucceed) {
throw new Exception("Could connect to agent, but should not have been possible");
}
if (!succeeded && shouldSucceed) {
throw new Exception("Could not connect to agent");
}
}
}

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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 2014, 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
@ -143,9 +143,12 @@ public class JvmstatCountersTest {
String vmid = name.substring(0, name.indexOf("@"));
System.out.println("vmid = " + vmid);
VirtualMachine vm = VirtualMachine.attach(vmid);
String agent = vm.getSystemProperties().getProperty("java.home") +
File.separator + "lib" + File.separator + "management-agent.jar";
vm.loadAgent(agent, "com.sun.management.jmxremote.port=0,com.sun.management.jmxremote.authenticate=false,com.sun.management.jmxremote.ssl=false");
Properties p = new Properties();
p.put("com.sun.management.jmxremote.port", "0");
p.put("com.sun.management.jmxremote.authenticate", "false");
p.put("com.sun.management.jmxremote.ssl", "false");
vm.startManagementAgent(p);
vm.startLocalManagementAgent();
vm.detach();
String localAddress2 = ConnectorAddressLink.importFrom(0);
if (localAddress2 == null) {

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@ -1,5 +1,5 @@
/*
* Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2013, 2014, 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
@ -22,13 +22,8 @@
*/
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
@ -47,19 +42,12 @@ import java.util.concurrent.atomic.AtomicReference;
*/
import jdk.testlibrary.ProcessTools;
import jdk.testlibrary.Utils;
public class LocalManagementTest {
private static final String TEST_CLASSPATH = System.getProperty("test.class.path");
private static final String TEST_JDK = System.getProperty("test.jdk");
private static int MAX_GET_FREE_PORT_TRIES = 10;
public static void main(String[] args) throws Exception {
try {
MAX_GET_FREE_PORT_TRIES = Integer.parseInt(System.getProperty("test.getfreeport.max.tries", "10"));
} catch (NumberFormatException ex) {
}
int failures = 0;
for(Method m : LocalManagementTest.class.getDeclaredMethods()) {
if (Modifier.isStatic(m.getModifiers()) &&
@ -84,110 +72,27 @@ public class LocalManagementTest {
}
}
@SuppressWarnings("unused")
private static boolean test1() throws Exception {
return doTest("1", "-Dcom.sun.management.jmxremote");
}
private static boolean test2() throws Exception {
Path agentPath = findAgent();
if (agentPath != null) {
String agent = agentPath.toString();
return doTest("2", "-javaagent:" + agent);
} else {
return false;
}
}
/**
* no args (blank) - manager should attach and start agent
*/
@SuppressWarnings("unused")
private static boolean test3() throws Exception {
return doTest("3", null);
}
/**
* sanity check arguments to management-agent.jar
*/
private static boolean test4() throws Exception {
Path agentPath = findAgent();
if (agentPath != null) {
for (int i = 0; i < MAX_GET_FREE_PORT_TRIES; ++i) {
ProcessBuilder builder = ProcessTools.createJavaProcessBuilder(
"-javaagent:" + agentPath.toString() +
"=com.sun.management.jmxremote.port=" + Utils.getFreePort() + "," +
"com.sun.management.jmxremote.authenticate=false," +
"com.sun.management.jmxremote.ssl=false",
"-cp",
TEST_CLASSPATH,
"TestApplication",
"-exit"
);
Process prc = null;
final AtomicReference<Boolean> isBindExceptionThrown = new AtomicReference<>();
isBindExceptionThrown.set(new Boolean(false));
try {
prc = ProcessTools.startProcess(
"TestApplication",
builder,
(String line) -> {
if (line.contains("Exception thrown by the agent : " +
"java.rmi.server.ExportException: Port already in use")) {
isBindExceptionThrown.set(new Boolean(true));
}
});
prc.waitFor();
if (prc.exitValue() == 0) {
return true;
}
if (isBindExceptionThrown.get().booleanValue()) {
System.out.println("'Port already in use' error detected. Try again");
} else {
return false;
}
} finally {
if (prc != null) {
prc.destroy();
prc.waitFor();
}
}
}
}
return false;
}
/**
* use DNS-only name service
*/
@SuppressWarnings("unused")
private static boolean test5() throws Exception {
return doTest("5", "-Dsun.net.spi.namservice.provider.1=\"dns,sun\"");
}
private static Path findAgent() {
FileSystem FS = FileSystems.getDefault();
Path agentPath = FS.getPath(
TEST_JDK, "jre", "lib", "management-agent.jar"
);
if (!isFileOk(agentPath)) {
agentPath = FS.getPath(
TEST_JDK, "lib", "management-agent.jar"
);
}
if (!isFileOk(agentPath)) {
System.err.println("Can not locate management-agent.jar");
return null;
}
return agentPath;
}
private static boolean isFileOk(Path path) {
return Files.isRegularFile(path) && Files.isReadable(path);
}
private static boolean doTest(String testId, String arg) throws Exception {
List<String> args = new ArrayList<>();
args.add("-cp");
@ -267,4 +172,4 @@ public class LocalManagementTest {
}
}
}
}
}

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@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2014, 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
@ -40,7 +40,6 @@ import java.lang.management.RuntimeMXBean;
import static java.lang.management.ManagementFactory.*;
import java.net.Socket;
import java.net.InetSocketAddress;
import java.io.File;
import java.io.IOException;
// Sun specific
@ -55,28 +54,8 @@ public class TestManager {
* Starts the management agent in the target VM
*/
private static void startManagementAgent(String pid) throws IOException {
/*
* JAR file normally in ${java.home}/jre/lib but may be in ${java.home}/lib
* with development/non-images builds
*/
String home = System.getProperty("java.home");
String agent = home + File.separator + "jre" + File.separator + "lib"
+ File.separator + "management-agent.jar";
File f = new File(agent);
if (!f.exists()) {
agent = home + File.separator + "lib" + File.separator +
"management-agent.jar";
f = new File(agent);
if (!f.exists()) {
throw new RuntimeException("management-agent.jar missing");
}
}
agent = f.getCanonicalPath();
System.out.println("Loading " + agent + " into target VM ...");
try {
VirtualMachine.attach(pid).loadAgent(agent);
VirtualMachine.attach(pid).startLocalManagementAgent();
} catch (Exception x) {
throw new IOException(x.getMessage());
}
@ -122,8 +101,7 @@ public class TestManager {
if (agentPropLocalConnectorAddress == null &&
jvmstatLocalConnectorAddress == null) {
// No JMX Connector address so attach to VM, and load
// management-agent.jar
// No JMX Connector address so attach to VM, and start local agent
startManagementAgent(pid);
agentPropLocalConnectorAddress = (String)
vm.getAgentProperties().get(LOCAL_CONNECTOR_ADDRESS_PROP);

View File

@ -31,16 +31,13 @@ import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Consumer;
import javax.management.*;
@ -60,7 +57,6 @@ import jdk.testlibrary.JDKToolLauncher;
* JCMD achieves the desired results
*/
public class JMXStartStopTest {
private static final String TEST_JDK = System.getProperty("test.jdk");
private static final String TEST_SRC = System.getProperty("test.src");
private static final boolean verbose = false;
@ -117,8 +113,8 @@ public class JMXStartStopTest {
QueryExp query)
throws Exception {
Set names = server.queryNames(pattern,query);
for (Iterator i=names.iterator(); i.hasNext(); ) {
Set<ObjectName> names = server.queryNames(pattern,query);
for (Iterator<ObjectName> i = names.iterator(); i.hasNext(); ) {
ObjectName name = (ObjectName)i.next();
MBeanInfo info = server.getMBeanInfo(name);
dbg_print("Got MBean: " + name);
@ -128,7 +124,7 @@ public class JMXStartStopTest {
continue;
for (MBeanAttributeInfo attr : attrs) {
if (attr.isReadable()) {
Object o = server.getAttribute(name, attr.getName());
server.getAttribute(name, attr.getName());
}
}
}
@ -149,9 +145,8 @@ public class JMXStartStopTest {
}
JMXServiceURL url = new JMXServiceURL(jmxUrlStr);
Map m = new HashMap();
JMXConnector c = JMXConnectorFactory.connect(url,m);
JMXConnector c = JMXConnectorFactory.connect(url, null);
MBeanServerConnection conn = c.getMBeanServerConnection();
ObjectName pattern = new ObjectName("java.lang:type=Memory,*");
@ -221,9 +216,8 @@ public class JMXStartStopTest {
port);
JMXServiceURL url = new JMXServiceURL(jmxUrlStr);
Map m = new HashMap();
JMXConnector c = JMXConnectorFactory.connect(url,m);
JMXConnector c = JMXConnectorFactory.connect(url, null);
MBeanServerConnection conn = c.getMBeanServerConnection();
ObjectName pattern = new ObjectName("java.lang:type=Memory,*");
@ -314,25 +308,6 @@ public class JMXStartStopTest {
}
}
/**
* Retrieves the PID of the test application using JCMD
* @return The PID of the test application
* @throws InterruptedException
* @throws IOException
*/
private static String getPID() throws InterruptedException, IOException {
final AtomicReference<String> pid = new AtomicReference<>();
jcmd(
null,
line -> {
if (line.endsWith("JMXStartStopDoSomething")) {
pid.set(line.split(" ")[0]);
}
}
);
return pid.get();
}
private static class Something {
private Process p;
private final ProcessBuilder pb;
@ -473,7 +448,7 @@ public class JMXStartStopTest {
private static final String CMD_START= "ManagementAgent.start";
private static final String CMD_START_LOCAL = "ManagementAgent.start_local";
private static void test_01() throws Exception {
static void test_01() throws Exception {
// Run an app with JMX enabled stop it and
// restart on other port
@ -499,7 +474,7 @@ public class JMXStartStopTest {
}
}
private static void test_02() throws Exception {
static void test_02() throws Exception {
// Run an app without JMX enabled
// start JMX by jcmd
@ -520,7 +495,7 @@ public class JMXStartStopTest {
}
}
private static void test_03() throws Exception {
static void test_03() throws Exception {
// Run an app without JMX enabled
// start JMX by jcmd on one port than on other one
@ -550,7 +525,7 @@ public class JMXStartStopTest {
}
}
private static void test_04() throws Exception {
static void test_04() throws Exception {
// Run an app without JMX enabled
// start JMX by jcmd on one port, specify rmi port explicitly
@ -571,7 +546,7 @@ public class JMXStartStopTest {
}
}
private static void test_05() throws Exception {
static void test_05() throws Exception {
// Run an app without JMX enabled, it will enable local server
// but should leave remote server disabled
@ -589,7 +564,7 @@ public class JMXStartStopTest {
}
}
private static void test_06() throws Exception {
static void test_06() throws Exception {
// Run an app without JMX enabled
// start JMX by jcmd on one port, specify rmi port explicitly
// attempt to start it again
@ -636,38 +611,39 @@ public class JMXStartStopTest {
jcmd(CMD_STOP);
jcmd(CMD_STOP);
ServerSocket ss = new ServerSocket(0);
try (ServerSocket ss = new ServerSocket(0))
{
jcmd(
line -> {
if (line.contains("Port already in use: " + ss.getLocalPort())) {
checks[2] = true;
}
},
CMD_START,
"jmxremote.port=" + ss.getLocalPort(),
"jmxremote.rmi.port=" + pa.getPort2(),
"jmxremote.authenticate=false",
"jmxremote.ssl=false");
jcmd(
line -> {
if (line.contains("Port already in use: " + ss.getLocalPort())) {
checks[2] = true;
}
},
CMD_START,
"jmxremote.port=" + ss.getLocalPort(),
"jmxremote.rmi.port=" + pa.getPort2(),
"jmxremote.authenticate=false",
"jmxremote.ssl=false");
if (!checks[0]) {
throw new Exception("Starting agent on port " + pa.getPort1() + " should " +
"report an invalid agent state");
}
if (!checks[1]) {
throw new Exception("Starting agent on poprt " + pa.getPort2() + " should " +
"report an invalid agent state");
}
if (!checks[2]) {
throw new Exception("Starting agent on port " + ss.getLocalPort() + " should " +
"report port in use");
if (!checks[0]) {
throw new Exception("Starting agent on port " + pa.getPort1() + " should " +
"report an invalid agent state");
}
if (!checks[1]) {
throw new Exception("Starting agent on poprt " + pa.getPort2() + " should " +
"report an invalid agent state");
}
if (!checks[2]) {
throw new Exception("Starting agent on port " + ss.getLocalPort() + " should " +
"report port in use");
}
}
} finally {
s.stop();
}
}
private static void test_07() throws Exception {
static void test_07() throws Exception {
// Run an app without JMX enabled, but with some properties set
// in command line.
// make sure these properties overridden corectly
@ -694,7 +670,7 @@ public class JMXStartStopTest {
}
}
private static void test_08() throws Exception {
static void test_08() throws Exception {
// Run an app with JMX enabled and with some properties set
// in command line.
// stop JMX agent and then start it again with different property values
@ -729,7 +705,7 @@ public class JMXStartStopTest {
}
}
private static void test_09() throws Exception {
static void test_09() throws Exception {
// Run an app with JMX enabled and with some properties set
// in command line.
// stop JMX agent and then start it again with different property values
@ -766,7 +742,7 @@ public class JMXStartStopTest {
}
}
private static void test_10() throws Exception {
static void test_10() throws Exception {
// Run an app with JMX enabled and with some properties set
// in command line.
// stop JMX agent and then start it again with different property values
@ -803,7 +779,7 @@ public class JMXStartStopTest {
}
}
private static void test_11() throws Exception {
static void test_11() throws Exception {
// Run an app with JMX enabled
// stop remote agent
// make sure local agent is not affected
@ -825,7 +801,7 @@ public class JMXStartStopTest {
}
}
private static void test_12() throws Exception {
static void test_12() throws Exception {
// Run an app with JMX disabled
// start local agent only
@ -845,28 +821,4 @@ public class JMXStartStopTest {
}
}
private static void test_13() throws Exception {
// Run an app with -javaagent make sure it works as expected -
// system properties are ignored
System.out.println("**** Test thirteen ****");
PortAllocator pa = new PortAllocator();
String agent = TEST_JDK + "/jre/lib/management-agent.jar";
if (!new File(agent).exists()) {
agent = TEST_JDK + "/lib/management-agent.jar";
}
Something s = doSomething("test_14",
"-javaagent:" + agent + "=com.sun.management.jmxremote.port=" +
pa.getPort1() + ",com.sun.management.jmxremote.authenticate=false",
"-Dcom.sun.management.jmxremote.ssl=false"
);
try {
testNoConnect(pa.port1);
} finally {
s.stop();
}
}
}