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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):

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