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How to use close method of sun.tools.attach.LinuxVirtualMachine class

Best Powermock code snippet using sun.tools.attach.LinuxVirtualMachine.close

Source:LinuxVirtualMachine.java

...112        int s = socket();113        try {114            connect(s, path);115        } finally {116            close(s);117        }118    }119    /**120     * Detach from the target VM121     */122    public void detach() throws IOException {123        synchronized (this) {124            if (this.path != null) {125                this.path = null;126            }127        }128    }129    // protocol version130    private final static String PROTOCOL_VERSION = "1";131    // known errors132    private final static int ATTACH_ERROR_BADVERSION = 101;133    /**134     * Execute the given command in the target VM.135     */136    InputStream execute(String cmd, Object ... args) throws AgentLoadException, IOException {137        assert args.length <= 3;                // includes null138        // did we detach?139        String p;140        synchronized (this) {141            if (this.path == null) {142                throw new IOException("Detached from target VM");143            }144            p = this.path;145        }146        // create UNIX socket147        int s = socket();148        // connect to target VM149        try {150            connect(s, p);151        } catch (IOException x) {152            close(s);153            throw x;154        }155        IOException ioe = null;156        // connected - write request157        // <ver> <cmd> <args...>158        try {159            writeString(s, PROTOCOL_VERSION);160            writeString(s, cmd);161            for (int i=0; i<3; i++) {162                if (i < args.length && args[i] != null) {163                    writeString(s, (String)args[i]);164                } else {165                    writeString(s, "");166                }167            }168        } catch (IOException x) {169            ioe = x;170        }171        // Create an input stream to read reply172        SocketInputStream sis = new SocketInputStream(s);173        // Read the command completion status174        int completionStatus;175        try {176            completionStatus = readInt(sis);177        } catch (IOException x) {178            sis.close();179            if (ioe != null) {180                throw ioe;181            } else {182                throw x;183            }184        }185        if (completionStatus != 0) {186            sis.close();187            // In the event of a protocol mismatch then the target VM188            // returns a known error so that we can throw a reasonable189            // error.190            if (completionStatus == ATTACH_ERROR_BADVERSION) {191                throw new IOException("Protocol mismatch with target VM");192            }193            // Special-case the "load" command so that the right exception is194            // thrown.195            if (cmd.equals("load")) {196                throw new AgentLoadException("Failed to load agent library");197            } else {198                throw new IOException("Command failed in target VM");199            }200        }201        // Return the input stream so that the command output can be read202        return sis;203    }204    /*205     * InputStream for the socket connection to get target VM206     */207    private class SocketInputStream extends InputStream {208        int s;209        public SocketInputStream(int s) {210            this.s = s;211        }212        public synchronized int read() throws IOException {213            byte b[] = new byte[1];214            int n = this.read(b, 0, 1);215            if (n == 1) {216                return b[0] & 0xff;217            } else {218                return -1;219            }220        }221        public synchronized int read(byte[] bs, int off, int len) throws IOException {222            if ((off < 0) || (off > bs.length) || (len < 0) ||223                ((off + len) > bs.length) || ((off + len) < 0)) {224                throw new IndexOutOfBoundsException();225            } else if (len == 0)226                return 0;227            return LinuxVirtualMachine.read(s, bs, off, len);228        }229        public void close() throws IOException {230            LinuxVirtualMachine.close(s);231        }232    }233    // Return the socket file for the given process.234    private String findSocketFile(int pid) {235        File f = new File(tmpdir, ".java_pid" + pid);236        if (!f.exists()) {237            return null;238        }239        return f.getPath();240    }241    // On Solaris/Linux a simple handshake is used to start the attach mechanism242    // if not already started. The client creates a .attach_pid<pid> file in the243    // target VM's working directory (or temp directory), and the SIGQUIT handler244    // checks for the file.245    private File createAttachFile(int pid) throws IOException {246        String fn = ".attach_pid" + pid;247        String path = "/proc/" + pid + "/cwd/" + fn;248        File f = new File(path);249        try {250            f.createNewFile();251        } catch (IOException x) {252            f = new File(tmpdir, fn);253            f.createNewFile();254        }255        return f;256    }257    /*258     * Write/sends the given to the target VM. String is transmitted in259     * UTF-8 encoding.260     */261    private void writeString(int fd, String s) throws IOException {262        if (s.length() > 0) {263            byte b[];264            try {265                b = s.getBytes("UTF-8");266            } catch (java.io.UnsupportedEncodingException x) {267                throw new InternalError();268            }269            LinuxVirtualMachine.write(fd, b, 0, b.length);270        }271        byte b[] = new byte[1];272        b[0] = 0;273        write(fd, b, 0, 1);274    }275    //-- native methods276    static native boolean isLinuxThreads();277    static native int getLinuxThreadsManager(int pid) throws IOException;278    static native void sendQuitToChildrenOf(int pid) throws IOException;279    static native void sendQuitTo(int pid) throws IOException;280    static native void checkPermissions(String path) throws IOException;281    static native int socket() throws IOException;282    static native void connect(int fd, String path) throws IOException;283    static native void close(int fd) throws IOException;284    static native int read(int fd, byte buf[], int off, int bufLen) throws IOException;285    static native void write(int fd, byte buf[], int off, int bufLen) throws IOException;286    static {287        System.loadLibrary("attach");288        isLinuxThreads = isLinuxThreads();289    }290}...

Using AI Code Generation

1LinuxVirtualMachine vm = (LinuxVirtualMachine)VirtualMachine.attach(pid);2vm.close();3WindowsVirtualMachine vm = (WindowsVirtualMachine)VirtualMachine.attach(pid);4vm.close();5BsdVirtualMachine vm = (BsdVirtualMachine)VirtualMachine.attach(pid);6vm.close();7SolarisVirtualMachine vm = (SolarisVirtualMachine)VirtualMachine.attach(pid);8vm.close();9MacOSXVirtualMachine vm = (MacOSXVirtualMachine)VirtualMachine.attach(pid);10vm.close();11LinuxVirtualMachine vm = (LinuxVirtualMachine)VirtualMachine.attach(pid);12vm.close();13WindowsVirtualMachine vm = (WindowsVirtualMachine)VirtualMachine.attach(pid);14vm.close();15BsdVirtualMachine vm = (BsdVirtualMachine)VirtualMachine.attach(pid);16vm.close();17SolarisVirtualMachine vm = (SolarisVirtualMachine)VirtualMachine.attach(pid);18vm.close();19MacOSXVirtualMachine vm = (MacOSXVirtualMachine)VirtualMachine.attach(pid);20vm.close();21LinuxVirtualMachine vm = (LinuxVirtualMachine)VirtualMachine.attach(pid);22vm.close();23WindowsVirtualMachine vm = (WindowsVirtualMachine)VirtualMachine.attach(pid);24vm.close();25BsdVirtualMachine vm = (BsdVirtualMachine)VirtualMachine.attach(pid);26vm.close();27SolarisVirtualMachine vm = (SolarisVirtualMachine)VirtualMachine.attach(pid);28vm.close();

Using AI Code Generation

1    try {2        Class<?> clazz = Class.forName("sun.tools.attach.LinuxVirtualMachine");3        Method closeMethod = clazz.getDeclaredMethod("close");4        closeMethod.setAccessible(true);5        closeMethod.invoke(vm);6    } catch (Exception e) {7        e.printStackTrace();8    }

Using AI Code Generation

1public class CloseVM {2    public static void main(String[] args) throws Exception {3        if (args.length != 1) {4            System.err.println("Usage: java CloseVM pid");5            System.exit(1);6        }7        int pid = Integer.parseInt(args[0]);8        Class<?> vmClass = Class.forName("sun.tools.attach.LinuxVirtualMachine");9        Method attachMethod = vmClass.getMethod("attach", int.class);10        Method closeMethod = vmClass.getMethod("close");11        Object vm = attachMethod.invoke(null, pid);12        closeMethod.invoke(vm);13    }14}15public class List {16    public static void main(String[] args) throws Exception {17        List<VirtualMachineDescriptor> vms = VirtualMachine.list();18        for (VirtualMachineDescriptor vmd: vms) {19            System.out.println(vmd.id() + "\t" + vmd.displayName());20        }21    }22}23public class GetDisplayName {24    public static void main(String[] args) throws Exception {25        if (args.length != 1) {26            System.err.println("Usage: java Get

Using AI Code Generation

1import java.io.*;2import java.util.*;3import sun.tools.attach.*;4public class CloseProcess {5    public static void main(String[] args) throws Exception {6        if (args.length != 1) {7            System.out.println("Usage: java CloseProcess pid");8            System.exit(1);9        }10        LinuxVirtualMachine vm = LinuxVirtualMachine.attach(args[0]);11        vm.close();12    }13}

Using AI Code Generation

1import sun.tools.attach.LinuxVirtualMachine;2public class Close {3        public static void main(String[] args) throws Exception {4                LinuxVirtualMachine vm = LinuxVirtualMachine.attach("12345");5                vm.close();6        }7}8Exception in thread "main" java.lang.NoSuchMethodError: sun.tools.attach.LinuxVirtualMachine.close()V9        at Close.main(Close.java:8)

Using AI Code Generation

1import java.io.IOException;2import java.lang.reflect.Field;3import java.lang.reflect.InvocationTargetException;4import java.lang.reflect.Method;5import java.util.List;6import com.sun.tools.attach.VirtualMachine;7import com.sun.tools.attach.VirtualMachineDescriptor;8public class DetachProcessFromJVM {9	public static void main(String[] args) throws Exception {10		VirtualMachine vm = null;11		try {12			vm = VirtualMachine.attach("1234");13			Method method = vm.getClass().getDeclaredMethod("close");14			method.setAccessible(true);15			method.invoke(vm);16		} catch (Exception e) {17			e.printStackTrace();18		}19	}20}

Using AI Code Generation

1import java.lang.reflect.Method;2import java.lang.reflect.InvocationTargetException;3import sun.tools.attach.LinuxVirtualMachine;4public class DetachTest {5    public static void main(String[] args) throws Exception {6        String pid = args[0];7        Class<?> c = Class.forName("sun.tools.attach.LinuxVirtualMachine");8        Method m = c.getDeclaredMethod("close");9        m.setAccessible(true);10        LinuxVirtualMachine vm = new LinuxVirtualMachine(pid);11        m.invoke(vm);12    }13}

Using AI Code Generation

1import java.lang.reflect.*;2import sun.tools.attach.*;3public class CloseProcess {4    public static void main(String[] args) throws Exception {5        String pid = "1234";6        LinuxVirtualMachine vm = LinuxVirtualMachine.attach(pid);7        Method closeMethod = vm.getClass().getDeclaredMethod("close");8        closeMethod.setAccessible(true);9        closeMethod.invoke(vm);10    }11}

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