Best Powermock code snippet using com.sun.tools.attach.VirtualMachine.attach
Source:VirtualMachine.java
...21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,22 * CA 95054 USA or visit www.sun.com if you need additional information or23 * have any questions.24 */25package com.sun.tools.attach;26import com.sun.tools.attach.spi.AttachProvider;27import java.io.IOException;28import java.util.ArrayList;29import java.util.List;30import java.util.Properties;31/**32 * A Java virtual machine.33 * <p/>34 * <p> A <code>VirtualMachine</code> represents a Java virtual machine to which this35 * Java virtual machine has attached. The Java virtual machine to which it is36 * attached is sometimes called the <i>target virtual machine</i>, or <i>target VM</i>.37 * An application (typically a tool such as a managemet console or profiler) uses a38 * VirtualMachine to load an agent into the target VM. For example, a profiler tool39 * written in the Java Language might attach to a running application and load its40 * profiler agent to profile the running application. </p>41 * <p/>42 * <p> A VirtualMachine is obtained by invoking the {@link #attach(String) attach} method43 * with an identifier that identifies the target virtual machine. The identifier is44 * implementation-dependent but is typically the process identifier (or pid) in45 * environments where each Java virtual machine runs in its own operating system process.46 * Alternatively, a <code>VirtualMachine</code> instance is obtained by invoking the47 * {@link #attach(VirtualMachineDescriptor) attach} method with a {@link48 * com.sun.tools.attach.VirtualMachineDescriptor VirtualMachineDescriptor} obtained49 * from the list of virtual machine descriptors returned by the {@link #list list} method.50 * Once a reference to a virtual machine is obtained, the {@link #loadAgent loadAgent},51 * {@link #loadAgentLibrary loadAgentLibrary}, and {@link #loadAgentPath loadAgentPath}52 * methods are used to load agents into target virtual machine. The {@link53 * #loadAgent loadAgent} method is used to load agents that are written in the Java54 * Language and deployed in a {@link java.util.jar.JarFile JAR file}. (See55 * {@link java.lang.instrument} for a detailed description on how these agents56 * are loaded and started). The {@link #loadAgentLibrary loadAgentLibrary} and57 * {@link #loadAgentPath loadAgentPath} methods are used to load agents that58 * are deployed in a dynamic library and make use of the <a59 * href="../../../../../../../../technotes/guides/jvmti/index.html">JVM Tools60 * Interface</a>. </p>61 * <p/>62 * <p> In addition to loading agents a VirtualMachine provides read access to the63 * {@link java.lang.System#getProperties() system properties} in the target VM.64 * This can be useful in some environments where properties such as65 * <code>java.home</code>, <code>os.name</code>, or <code>os.arch</code> are66 * used to construct the path to agent that will be loaded into the target VM.67 * <p/>68 * <p> The following example demonstrates how VirtualMachine may be used:</p>69 * <p/>70 * <pre>71 * <p/>72 * // attach to target VM73 * VirtualMachine vm = VirtualMachine.attach("2177");74 * <p/>75 * // get system properties in target VM76 * Properties props = vm.getSystemProperties();77 * <p/>78 * // construct path to management agent79 * String home = props.getProperty("java.home");80 * String agent = home + File.separator + "lib" + File.separator81 * + "management-agent.jar";82 * <p/>83 * // load agent into target VM84 * vm.loadAgent(agent, "com.sun.management.jmxremote.port=5000");85 * <p/>86 * // detach87 * vm.detach();88 * <p/>89 * </pre>90 * <p/>91 * <p> In this example we attach to a Java virtual machine that is identified by92 * the process identifier <code>2177</code>. The system properties from the target93 * VM are then used to construct the path to a <i>management agent</i> which is then94 * loaded into the target VM. Once loaded the client detaches from the target VM. </p>95 * <p/>96 * <p> A VirtualMachine is safe for use by multiple concurrent threads. </p>97 *98 * @since 1.699 */100public abstract class VirtualMachine101{102 private final AttachProvider provider;103 private final String id;104 private volatile int hash; // 0 => not computed105 /**106 * Initializes a new instance of this class.107 *108 * @param provider The attach provider creating this class.109 * @param id The abstract identifier that identifies the Java virtual machine.110 */111 protected VirtualMachine(AttachProvider provider, String id)112 {113 this.provider = provider;114 this.id = id;115 }116 /**117 * Return a list of Java virtual machines.118 * <p/>119 * This method returns a list of Java {@link com.sun.tools.attach.VirtualMachineDescriptor}120 * elements. The list is an aggregation of the virtual machine descriptor lists obtained by121 * invoking the {@link com.sun.tools.attach.spi.AttachProvider#listVirtualMachines122 * listVirtualMachines} method of all installed {@link com.sun.tools.attach.spi.AttachProvider123 * attach providers}. If there are no Java virtual machines known to any provider then an empty124 * list is returned.125 *126 * @return The list of virtual machine descriptors.127 */128 public static List<VirtualMachineDescriptor> list()129 {130 List<VirtualMachineDescriptor> l = new ArrayList<VirtualMachineDescriptor>();131 List<AttachProvider> providers = AttachProvider.providers();132 for (AttachProvider provider : providers) {133 l.addAll(provider.listVirtualMachines());134 }135 return l;136 }137 /**138 * Attaches to a Java virtual machine.139 * <p/>140 * This method obtains the list of attach providers by invoking the141 * {@link com.sun.tools.attach.spi.AttachProvider#providers() AttachProvider.providers()} method.142 * It then iterates overs the list and invokes each provider's {@link143 * com.sun.tools.attach.spi.AttachProvider#attachVirtualMachine(java.lang.String)144 * attachVirtualMachine} method in turn. If a provider successfully145 * attaches then the iteration terminates, and the VirtualMachine created146 * by the provider that successfully attached is returned by this method.147 * If the <code>attachVirtualMachine</code> method of all providers throws148 * {@link com.sun.tools.attach.AttachNotSupportedException AttachNotSupportedException}149 * then this method also throws <code>AttachNotSupportedException</code>.150 * This means that <code>AttachNotSupportedException</code> is thrown when151 * the identifier provided to this method is invalid, or the identifier152 * corresponds to a Java virtual machine that does not exist, or none153 * of the providers can attach to it. This exception is also thrown if154 * {@link com.sun.tools.attach.spi.AttachProvider#providers()155 * AttachProvider.providers()} returns an empty list. </p>156 *157 * @param id The abstract identifier that identifies the Java virtual machine.158 * @return A VirtualMachine representing the target VM.159 * @throws SecurityException If a security manager has been installed and it denies160 * {@link com.sun.tools.attach.AttachPermission AttachPermission}161 * <tt>("attachVirtualMachine")</tt>, or another permission162 * required by the implementation.163 * @throws IOException If an I/O error occurs164 */165 public static VirtualMachine attach(String id) throws AttachNotSupportedException, IOException166 {167 List<AttachProvider> providers = AttachProvider.providers();168 AttachNotSupportedException lastExc = null;169 for (AttachProvider provider : providers) {170 try {171 return provider.attachVirtualMachine(id);172 }173 catch (AttachNotSupportedException x) {174 lastExc = x;175 }176 }177 throw lastExc;178 }179 /**180 * Attaches to a Java virtual machine.181 * <p/>182 * This method first invokes the {@link com.sun.tools.attach.VirtualMachineDescriptor#provider()183 * provider()} method of the given virtual machine descriptor to obtain the attach provider.184 * It then invokes the attach provider's {@link185 * com.sun.tools.attach.spi.AttachProvider#attachVirtualMachine(VirtualMachineDescriptor)186 * attachVirtualMachine} to attach to the target VM.187 *188 * @param vmd The virtual machine descriptor.189 *190 * @return A VirtualMachine representing the target VM.191 *192 * @throws SecurityException193 * If a security manager has been installed and it denies194 * {@link com.sun.tools.attach.AttachPermission AttachPermission}195 * <tt>("attachVirtualMachine")</tt>, or another permission196 * required by the implementation.197 *198 * @throws AttachNotSupportedException199 * If the attach provider's <code>attachVirtualmachine</code>200 * throws <code>AttachNotSupportedException</code>.201 *202 * @throws IOException If an I/O error occurs203 *204 * @throws NullPointerException If <code>vmd</code> is <code>null</code>.205 */206 public static VirtualMachine attach(VirtualMachineDescriptor vmd)207 throws AttachNotSupportedException, IOException208 {209 return vmd.provider().attachVirtualMachine(vmd);210 }211 /**212 * Detach from the virtual machine.213 * <p/>214 * After detaching from the virtual machine, any further attempt to invoke215 * operations on that virtual machine will cause an {@link java.io.IOException216 * IOException} to be thrown. If an operation (such as {@link #loadAgent217 * loadAgent} for example) is in progress when this method is invoked then218 * the behaviour is implementation dependent. In other words, it is219 * implementation specific if the operation completes or throws <tt>IOException</tt>.220 * <p/>221 * If already detached from the virtual machine then invoking this method has no effect.222 *223 * @throws IOException If an I/O error occurs224 */225 public abstract void detach() throws IOException;226 /**227 * Returns the provider that created this virtual machine.228 */229 public final AttachProvider provider()230 {231 return provider;232 }233 /**234 * Returns the identifier for this Java virtual machine.235 */236 public final String id()237 {238 return id;239 }240 /**241 * Loads an agent library.242 * <p/>243 * A <a href="../../../../../../../../technotes/guides/jvmti/index.html">JVM244 * TI</a> client is called an <i>agent</i>. It is developed in a native language.245 * A JVM TI agent is deployed in a platform specific manner but it is typically the246 * platform equivalent of a dynamic library. This method causes the given agent247 * library to be loaded into the target VM (if not already loaded).248 * It then causes the target VM to invoke the <code>Agent_OnAttach</code> function249 * as specified in the250 * <a href="../../../../../../../../technotes/guides/jvmti/index.html"> JVM Tools251 * Interface</a> specification. Note that the <code>Agent_OnAttach</code>252 * function is invoked even if the agent library was loaded prior to invoking253 * this method.254 * <p/>255 * The agent library provided is the name of the agent library. It is interpreted256 * in the target virtual machine in an implementation-dependent manner. Typically an257 * implementation will expand the library name into an operating system specific file258 * name. For example, on UNIX systems, the name <tt>foo</tt> might be expanded to259 * <tt>libfoo.so</tt>, and located using the search path specified by the260 * <tt>LD_LIBRARY_PATH</tt> environment variable.261 * <p/>262 * If the <code>Agent_OnAttach</code> function in the agent library returns263 * an error then an {@link com.sun.tools.attach.AgentInitializationException} is264 * thrown. The return value from the <code>Agent_OnAttach</code> can then be265 * obtained by invoking the {@link266 * com.sun.tools.attach.AgentInitializationException#returnValue() returnValue}267 * method on the exception.268 *269 * @param agentLibrary The name of the agent library.270 * @param options The options to provide to the <code>Agent_OnAttach</code>271 * function (can be <code>null</code>).272 * @throws AgentLoadException If the agent library does not exist, or cannot be loaded for273 * another reason.274 * @throws AgentInitializationException If the <code>Agent_OnAttach</code> function returns an error275 * @throws IOException If an I/O error occurs276 * @throws NullPointerException If <code>agentLibrary</code> is <code>null</code>.277 * @see com.sun.tools.attach.AgentInitializationException#returnValue()278 */279 public abstract void loadAgentLibrary(String agentLibrary, String options)280 throws AgentLoadException, AgentInitializationException, IOException;281 /**282 * Loads an agent library.283 * <p/>284 * This convenience method works as if by invoking:285 * <p/>286 * <blockquote><tt>287 * {@link #loadAgentLibrary(String, String) loadAgentLibrary}(agentLibrary, null);288 * </tt></blockquote>289 *290 * @param agentLibrary The name of the agent library.291 * @throws AgentLoadException If the agent library does not exist, or cannot be loaded for292 * another reason.293 * @throws AgentInitializationException If the <code>Agent_OnAttach</code> function returns an error294 * @throws IOException If an I/O error occurs295 * @throws NullPointerException If <code>agentLibrary</code> is <code>null</code>.296 */297 public void loadAgentLibrary(String agentLibrary)298 throws AgentLoadException, AgentInitializationException, IOException299 {300 loadAgentLibrary(agentLibrary, null);301 }302 /**303 * Load a native agent library by full pathname.304 * <p/>305 * A <a href="../../../../../../../../technotes/guides/jvmti/index.html">JVM TI</a> client is306 * called an <i>agent</i>. It is developed in a native language.307 * A JVM TI agent is deployed in a platform specific manner but it is typically the308 * platform equivalent of a dynamic library. This method causes the given agent309 * library to be loaded into the target VM (if not already loaded).310 * It then causes the target VM to invoke the <code>Agent_OnAttach</code> function311 * as specified in the312 * <a href="../../../../../../../../technotes/guides/jvmti/index.html"> JVM Tools313 * Interface</a> specification. Note that the <code>Agent_OnAttach</code>314 * function is invoked even if the agent library was loaded prior to invoking315 * this method.316 * <p/>317 * The agent library provided is the absolute path from which to load the318 * agent library. Unlike {@link #loadAgentLibrary loadAgentLibrary}, the library name319 * is not expanded in the target virtual machine.320 * <p/>321 * If the <code>Agent_OnAttach</code> function in the agent library returns322 * an error then an {@link com.sun.tools.attach.AgentInitializationException} is323 * thrown. The return value from the <code>Agent_OnAttach</code> can then be324 * obtained by invoking the {@link325 * com.sun.tools.attach.AgentInitializationException#returnValue() returnValue}326 * method on the exception.327 *328 * @param agentPath The full path of the agent library.329 * @param options The options to provide to the <code>Agent_OnAttach</code>330 * function (can be <code>null</code>).331 * @throws AgentLoadException If the agent library does not exist, or cannot be loaded for332 * another reason.333 * @throws AgentInitializationException If the <code>Agent_OnAttach</code> function returns an error334 * @throws IOException If an I/O error occurs335 * @throws NullPointerException If <code>agentPath</code> is <code>null</code>.336 * @see com.sun.tools.attach.AgentInitializationException#returnValue()337 */338 public abstract void loadAgentPath(String agentPath, String options)339 throws AgentLoadException, AgentInitializationException, IOException;340 /**341 * Load a native agent library by full pathname.342 * <p/>343 * This convenience method works as if by invoking:344 * <p/>345 * <blockquote><tt>346 * {@link #loadAgentPath(String, String) loadAgentPath}(agentLibrary, null);347 * </tt></blockquote>348 *349 * @param agentPath The full path to the agent library.350 * @throws AgentLoadException If the agent library does not exist, or cannot be loaded for...
Source:AttachToolMain.java
1package geym.zbase.ch11.agent.attach;23import java.io.IOException;4import java.util.List;56import com.sun.tools.attach.AgentInitializationException;7import com.sun.tools.attach.AgentLoadException;8import com.sun.tools.attach.AttachNotSupportedException;9import com.sun.tools.attach.VirtualMachine;10import com.sun.tools.attach.VirtualMachineDescriptor;1112/**13 * Add tools.jar14 * @author geym15 *16 */17public class AttachToolMain {18 public static void main(String[] args) throws AttachNotSupportedException, IOException, AgentLoadException, AgentInitializationException {19 List<VirtualMachineDescriptor> list = VirtualMachine.list(); 20 for (VirtualMachineDescriptor vmd : list) 21 { 22 if(vmd.displayName().endsWith("RunLoopAccountMain")){ 23 VirtualMachine virtualmachine = VirtualMachine.attach(vmd.id()); 24 virtualmachine.loadAgent("D:\\ja.jar", "argument for agent");25 System.out.println("ok");26 virtualmachine.detach();27 }28 } 29 }30}
...
attach
Using AI Code Generation
1import java.io.IOException;2import java.util.List;3import java.util.ArrayList;4import com.sun.tools.attach.VirtualMachine;5import com.sun.tools.attach.VirtualMachineDescriptor;6public class 4 {7 public static void main(String[] args) throws IOException {8 List<VirtualMachineDescriptor> vmds = VirtualMachine.list();9 List<VirtualMachine> vms = new ArrayList<VirtualMachine>();10 for (VirtualMachineDescriptor vmd : vmds) {11 if (vmd.displayName().equals("4")) {12 vms.add(VirtualMachine.attach(vmd));13 }14 }15 for (VirtualMachine vm : vms) {16 vm.detach();17 }18 }19}20import java.io.IOException;21import java.util.List;22import java.util.ArrayList;23import com.sun.tools.attach.VirtualMachine;24import com.sun.tools.attach.VirtualMachineDescriptor;25public class 4 {26 public static void main(String[] args) throws IOException {27 List<VirtualMachineDescriptor> vmds = VirtualMachine.list();28 List<VirtualMachine> vms = new ArrayList<VirtualMachine>();29 for (VirtualMachineDescriptor vmd : vmds) {30 if (vmd.displayName().equals("4")) {31 vms.add(VirtualMachine.attach(vmd));32 }33 }34 for (VirtualMachine vm : vms) {35 vm.detach();36 }37 }38}
attach
Using AI Code Generation
1import com.sun.tools.attach.*;2public class 4 {3 public static void main(String[] args) throws Exception {4 VirtualMachine vm = VirtualMachine.attach("PID");5 vm.loadAgent("/path/to/agent.jar");6 vm.detach();7 }8}9import com.sun.tools.attach.*;10public class 5 {11 public static void main(String[] args) throws Exception {12 VirtualMachine vm = VirtualMachine.attach("PID");13 vm.loadAgent("/path/to/agent.jar","argument1");14 vm.detach();15 }16}17import com.sun.tools.attach.*;18public class 6 {19 public static void main(String[] args) throws Exception {20 VirtualMachine vm = VirtualMachine.attach("PID");21 vm.loadAgent("/path/to/agent.jar","argument1 argument2");22 vm.detach();23 }24}25import com.sun.tools.attach.*;26public class 7 {27 public static void main(String[] args) throws Exception {28 VirtualMachine vm = VirtualMachine.attach("PID");29 vm.loadAgent("/path/to/agent.jar","argument1 argument2 argument3");30 vm.detach();31 }32}33import com.sun.tools.attach.*;34public class 8 {35 public static void main(String[] args) throws Exception {36 VirtualMachine vm = VirtualMachine.attach("PID");37 vm.loadAgent("/path/to/agent.jar","argument1 argument2 argument3 argument4");38 vm.detach();39 }40}41import com.sun.tools.attach.*;42public class 9 {43 public static void main(String[] args) throws Exception {44 VirtualMachine vm = VirtualMachine.attach("PID");45 vm.loadAgent("/path/to/agent.jar","argument1 argument2 argument3 argument4 argument5");46 vm.detach();47 }48}49import com.sun.tools.attach.*;50public class 10 {51 public static void main(String[] args
attach
Using AI Code Generation
1import java.io.IOException;2import java.lang.management.ManagementFactory;3import java.lang.management.RuntimeMXBean;4import java.lang.reflect.InvocationTargetException;5import java.lang.reflect.Method;6import java.util.List;7import com.sun.tools.attach.AttachNotSupportedException;8import com.sun.tools.attach.VirtualMachine;9import com.sun.tools.attach.VirtualMachineDescriptor;10public class 4 {11public static void main(String[] args) throws AttachNotSupportedException, IOException, ClassNotFoundException, NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {12VirtualMachineDescriptor vmd = null;13for(VirtualMachineDescriptor desc : VirtualMachine.list())14{15if(desc.displayName().contains("sun.tools.jps.Jps"))16{17vmd = desc;18break;19}20}21VirtualMachine vm = VirtualMachine.attach(vmd.id());22RuntimeMXBean bean = ManagementFactory.newPlatformMXBeanProxy(vm.getManagementAgent(), ManagementFactory.RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);23List<String> arguments = bean.getInputArguments();
attach
Using AI Code Generation
1import java.io.*;2import java.util.*;3import com.sun.tools.attach.*;4public class 4 {5 public static void main(String[] args) throws Exception {6 String processID = args[0];7 String classPath = args[1];8 String className = args[2];9 String methodName = args[3];10 VirtualMachine vm = VirtualMachine.attach(processID);11 vm.loadAgent(classPath, className + " " + methodName);12 vm.detach();13 }14}15import java.io.*;16import java.lang.reflect.*;17public class 4Agent {18 public static void agentmain(String args, Instrumentation inst) throws Exception {19 String[] arguments = args.split(" ");20 String className = arguments[0];21 String methodName = arguments[1];22 Class<?> c = Class.forName(className);23 Method m = c.getMethod(methodName);24 ClassLoader cl = m.getDeclaringClass().getClassLoader();25 System.out.println("ClassLoader of " + className + " is " + cl);26 }27}28public class 4Main {29 public static void main(String[] args) throws Exception {30 System.out.println("Hello World!");31 }32}33java -cp .;4Main.jar 4 4Main 4Main main34java -cp .;4Agent.jar 4 4Main 4
attach
Using AI Code Generation
1import java.io.File;2import java.io.IOException;3import java.lang.management.ManagementFactory;4import java.lang.management.RuntimeMXBean;5import java.util.List;6import com.sun.tools.attach.VirtualMachine;7import com.sun.tools.attach.VirtualMachineDescriptor;8public class 4 {9 public static void main(String[] args) throws IOException {10 RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();11 String pid = runtimeMXBean.getName().split("@")[0];12 List<VirtualMachineDescriptor> list = VirtualMachine.list();13 for (VirtualMachineDescriptor vmd : list) {14 if (vmd.id().equals(pid)) {15 VirtualMachine vm = VirtualMachine.attach(vmd);16 File file = new File("C:\\Users\\user\\Desktop\\Agent.jar");17 vm.loadAgent(file.getAbsolutePath());18 vm.detach();19 }20 }21 }22}23import java.lang.instrument.Instrumentation;24public class Agent {25 public static void premain(String agentArguments, Instrumentation instrumentation) {26 System.out.println("Premain called");27 }28 public static void agentmain(String agentArguments, Instrumentation instrumentation) {29 System.out.println("Agentmain called");30 }31}
attach
Using AI Code Generation
1import com.sun.tools.attach.*;2public class 4 {3public static void main(String[] args) {4try{5VirtualMachine vm = VirtualMachine.attach("1234");6vm.detach();7}8catch(Exception e){9System.out.println(e);10}11}12}13import com.sun.tools.attach.*;14public class 5 {15public static void main(String[] args) {16try{17VirtualMachine vm = VirtualMachine.attach("
attach
Using AI Code Generation
1import com.sun.tools.attach.*;2import java.util.*;3public class 4 {4public static void main(String[] args) {5List l = VirtualMachine.list();6for (int i = 0; i < l.size(); i++) {7VirtualMachineDescriptor vmd = (VirtualMachineDescriptor) l.get(i);8System.out.println(vmd.id() + " " + vmd.displayName());9}10VirtualMachine vm = VirtualMachine.attach("pid");11vm.loadAgent("path to agent library");12vm.detach();13}14}15import com.sun.tools.attach.*;16import java.util.*;17public class 5 {18public static void main(String[] args) {19List l = VirtualMachine.list();20for (int i = 0; i < l.size(); i++) {21VirtualMachineDescriptor vmd = (VirtualMachineDescriptor) l.get(i);22System.out.println(vmd.id() + " " + vmd.displayName());23}24VirtualMachine vm = VirtualMachine.attach("pid");25vm.loadAgent("path to agent library");26vm.detach();27}28}29import com.sun.tools.attach.*;30import java.util.*;31public class 6 {32public static void main(String[] args) {33List l = VirtualMachine.list();34for (int i = 0; i < l.size(); i++) {35VirtualMachineDescriptor vmd = (VirtualMachineDescriptor) l.get(i);36System.out.println(vmd.id() + " " + vmd.displayName());37}38VirtualMachine vm = VirtualMachine.attach("pid");39vm.loadAgent("path to agent library");40vm.detach();41}42}
attach
Using AI Code Generation
1import java.util.*;2import com.sun.tools.attach.*;3public class 4 {4 public static void main(String[] args) throws Exception {5 String pid = args[0];6 Properties props = VirtualMachine.attach(pid).getSystemProperties();7 System.out.println(props);8 }9}
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