KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use SolarisVirtualMachine method of sun.tools.attach.SolarisVirtualMachine class

Best Powermock code snippet using sun.tools.attach.SolarisVirtualMachine.SolarisVirtualMachine

Source:SolarisVirtualMachine.java

...33import java.io.FileNotFoundException;34/*35 * Solaris implementation of HotSpotVirtualMachine.36 */37public class SolarisVirtualMachine extends HotSpotVirtualMachine {38    // "/tmp" is used as a global well-known location for the files39    // .java_pid<pid>. and .attach_pid<pid>. It is important that this40    // location is the same for all processes, otherwise the tools41    // will not be able to find all Hotspot processes.42    // Any changes to this needs to be synchronized with HotSpot.43    private static final String tmpdir = "/tmp";44    // door descriptor;45    private int fd = -1;46    /**47     * Attaches to the target VM48     */49    SolarisVirtualMachine(AttachProvider provider, String vmid)50        throws AttachNotSupportedException, IOException51    {52        super(provider, vmid);53        // This provider only understands process-ids (pids).54        int pid;55        try {56            pid = Integer.parseInt(vmid);57        } catch (NumberFormatException x) {58            throw new AttachNotSupportedException("invalid process identifier");59        }60        // Opens the door file to the target VM. If the file is not61        // found it might mean that the attach mechanism isn't started in the62        // target VM so we attempt to start it and retry.63        try {64            fd = openDoor(pid);65        } catch (FileNotFoundException fnf1) {66            File f = createAttachFile(pid);67            try {68                // kill -QUIT will tickle target VM to check for the69                // attach file.70                sigquit(pid);71                // give the target VM time to start the attach mechanism72                int i = 0;73                long delay = 200;74                int retries = (int)(attachTimeout() / delay);75                do {76                    try {77                        Thread.sleep(delay);78                    } catch (InterruptedException x) { }79                    try {80                        fd = openDoor(pid);81                    } catch (FileNotFoundException fnf2) { }82                    i++;83                } while (i <= retries && fd == -1);84                if (fd == -1) {85                    throw new AttachNotSupportedException(86                        "Unable to open door: target process not responding or " +87                        "HotSpot VM not loaded");88                }89            } finally {90                f.delete();91            }92        }93        assert fd >= 0;94    }95    /**96     * Detach from the target VM97     */98    public void detach() throws IOException {99        synchronized (this) {100            if (fd != -1) {101                close(fd);102                fd = -1;103            }104        }105    }106    /**107     * Execute the given command in the target VM.108     */109    InputStream execute(String cmd, Object ... args) throws AgentLoadException, IOException {110        assert args.length <= 3;                // includes null111        // first check that we are still attached112        int door;113        synchronized (this) {114            if (fd == -1) {115                throw new IOException("Detached from target VM");116            }117            door = fd;118        }119        // enqueue the command via a door call120        int s = enqueue(door, cmd, args);121        assert s >= 0;                          // valid file descriptor122        // The door call returns a file descriptor (one end of a socket pair).123        // Create an input stream around it.124        SocketInputStream sis = new SocketInputStream(s);125        // Read the command completion status126        int completionStatus;127        try {128            completionStatus = readInt(sis);129        } catch (IOException ioe) {130            sis.close();131            throw ioe;132        }133        // If non-0 it means an error but we need to special-case the134        // "load" command to ensure that the right exception is thrown.135        if (completionStatus != 0) {136            // read from the stream and use that as the error message137            String message = readErrorMessage(sis);138            sis.close();139            if (cmd.equals("load")) {140                throw new AgentLoadException("Failed to load agent library");141            } else {142                if (message == null) {143                    throw new AttachOperationFailedException("Command failed in target VM");144                } else {145                    throw new AttachOperationFailedException(message);146                }147            }148        }149        // Return the input stream so that the command output can be read150        return sis;151    }152    // InputStream over a socket153    private class SocketInputStream extends InputStream {154        int s;155        public SocketInputStream(int s) {156            this.s = s;157        }158        public synchronized int read() throws IOException {159            byte b[] = new byte[1];160            int n = this.read(b, 0, 1);161            if (n == 1) {162                return b[0] & 0xff;163            } else {164                return -1;165            }166        }167        public synchronized int read(byte[] bs, int off, int len) throws IOException {168            if ((off < 0) || (off > bs.length) || (len < 0) ||169                ((off + len) > bs.length) || ((off + len) < 0)) {170                throw new IndexOutOfBoundsException();171            } else if (len == 0)172                return 0;173            return SolarisVirtualMachine.read(s, bs, off, len);174        }175        public void close() throws IOException {176            SolarisVirtualMachine.close(s);177        }178    }179    // The door is attached to .java_pid<pid> in the temporary directory.180    private int openDoor(int pid) throws IOException {181        String path = tmpdir + "/.java_pid" + pid;;182        fd = open(path);183        // Check that the file owner/permission to avoid attaching to184        // bogus process185        try {186            checkPermissions(path);187        } catch (IOException ioe) {188            close(fd);189            throw ioe;190        }...

SolarisVirtualMachine

Using AI Code Generation

1import java.io.File;2import java.io.IOException;3import java.lang.reflect.Method;4import java.util.ArrayList;5import java.util.List;6import java.util.Map;7import sun.tools.attach.HotSpotVirtualMachine;8import sun.tools.attach.SolarisVirtualMachine;9import sun.tools.attach.VirtualMachine;10public class SolarisVirtualMachineTest {11    public static void main(String[] args) throws IOException {12        List<String> pids = new ArrayList<String>();13        Map<String, VirtualMachine> vms = VirtualMachine.list();14        for (Map.Entry<String, VirtualMachine> entry : vms.entrySet()) {15            String pid = entry.getKey();16            VirtualMachine vm = entry.getValue();17            if (vm instanceof HotSpotVirtualMachine) {18                HotSpotVirtualMachine hsvm = (HotSpotVirtualMachine) vm;19                if (hsvm.isAttachable()) {20                    try {21                        hsvm.attach();22                        try {23                            Method method = SolarisVirtualMachine.class.getDeclaredMethod("getProcessId");24                            method.setAccessible(true);25                            Object result = method.invoke(hsvm);26                            if (result != null) {27                                pids.add(result.toString());28                            }29                        } finally {30                            hsvm.detach();31                        }32                    } catch (Exception e) {33                        e.printStackTrace();34                    }35                }36            }37        }38        System.out.println(pids);39    }40}

SolarisVirtualMachine

Using AI Code Generation

1import sun.tools.attach.SolarisVirtualMachine;2import sun.tools.attach.HotSpotVirtualMachine;3String pid = "1234";4String jvmPath = "/usr/jdk/jdk1.7.0_45/jre/lib/amd64/server/libjvm.so";5String agentPath = "/path/to/agent.jar";6String agentArgs = "agentArgs";7SolarisVirtualMachine vm = SolarisVirtualMachine.attach(pid, jvmPath);8vm.loadAgent(agentPath, agentArgs);9vm.detach();10HotSpotVirtualMachine vm = HotSpotVirtualMachine.attach(pid);11vm.loadAgent(agentPath, agentArgs);12vm.detach();13HotSpotVirtualMachine vm = HotSpotVirtualMachine.attach(pid);14vm.loadAgentLibrary("agent", "agentArgs");15vm.detach();16HotSpotVirtualMachine vm = HotSpotVirtualMachine.attach(pid);17vm.loadAgentPath("agent", "agentArgs");18vm.detach();19HotSpotVirtualMachine vm = HotSpotVirtualMachine.attach(pid);20vm.loadAgentPath("agent", "agentArgs");21vm.detach();22HotSpotVirtualMachine vm = HotSpotVirtualMachine.attach(pid);23vm.loadAgentPath("agent", "agentArgs");24vm.detach();25HotSpotVirtualMachine vm = HotSpotVirtualMachine.attach(pid);26vm.loadAgentPath("agent", "agentArgs");27vm.detach();28HotSpotVirtualMachine vm = HotSpotVirtualMachine.attach(pid);29vm.loadAgentPath("agent", "agentArgs");30vm.detach();31HotSpotVirtualMachine vm = HotSpotVirtualMachine.attach(pid);32vm.loadAgentPath("agent", "agentArgs");33vm.detach();

SolarisVirtualMachine

Using AI Code Generation

1import sun.tools.attach.SolarisVirtualMachine;2import java.io.File;3import java.io.IOException;4import java.lang.reflect.InvocationTargetException;5import java.lang.reflect.Method;6public class SolarisVirtualMachineTest {7    public static void main(String[] args) throws IOException, ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException {8        String javaHome = System.getProperty("java.home");9        String javaExecutable = javaHome + File.separator + "bin" + File.separator + "java";10        ProcessBuilder processBuilder = new ProcessBuilder(javaExecutable, "-version");11        processBuilder.redirectErrorStream(true);12        Process process = processBuilder.start();13        SolarisVirtualMachine solarisVirtualMachine = new SolarisVirtualMachine(process);14        Method getProcessId = solarisVirtualMachine.getClass().getDeclaredMethod("getProcessId");15        getProcessId.setAccessible(true);16        int pid = (int) getProcessId.invoke(solarisVirtualMachine);17        System.out.println("Process Id of the java process is: " + pid);18    }19}

SolarisVirtualMachine

Using AI Code Generation

1public class GetProcessId {2    public static void main(String[] args) throws Exception {3        int pid = sun.tools.attach.SolarisVirtualMachine.getProcessId();4        System.out.println(pid);5    }6}7The getProcessId() method of the sun.tools.attach.SolarisVirtualMachine class is declared as follows:8public static int getProcessId()9The getProcessId() method of the sun.tools.attach.SolarisVirtualMachine class is used to get the

SolarisVirtualMachine

Using AI Code Generation

1import sun.tools.attach.SolarisVirtualMachine;2public class FindPid {3    public static void main(String[] args) {4        String pid = null;5        if (args.length == 0) {6            System.out.println("Usage: java FindPid <process_name>");7            System.exit(1);8        }9        try {10            SolarisVirtualMachine vm = new SolarisVirtualMachine();11            pid = vm.findProcessId(args[0]);12        } catch (Exception e) {13            e.printStackTrace();14        }15        System.out.println(pid);16    }17}18Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.0-b11 mixed mode):

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.