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How to use executeCommand method of sun.tools.attach.HotSpotVirtualMachine class

Best Powermock code snippet using sun.tools.attach.HotSpotVirtualMachine.executeCommand

Source:HotSpotVirtualMachine.java

...132   {133      InputStream in = null;134      Properties props = new Properties();135      try {136         in = executeCommand("properties");137         props.load(in);138      }139      finally {140         if (in != null) {141            in.close();142         }143      }144      return props;145   }146   @Override147   public Properties getAgentProperties() throws IOException148   {149      InputStream in = null;150      Properties props = new Properties();151      try {152         in = executeCommand("agentProperties");153         props.load(in);154      }155      finally {156         if (in != null) {157            in.close();158         }159      }160      return props;161   }162   // --- HotSpot specific methods ---163   // same as SIGQUIT164   public void localDataDump() throws IOException165   {166      executeCommand("datadump").close();167   }168   // Remote ctrl-break. The output of the ctrl-break actions can be read from the input stream.169   public InputStream remoteDataDump(Object... args) throws IOException170   {171      return executeCommand("threaddump", args);172   }173   // Remote heap dump. The output (error message) can be read from the returned input stream.174   public InputStream dumpHeap(Object... args) throws IOException175   {176      return executeCommand("dumpheap", args);177   }178   // Heap histogram (heap inspection in HotSpot).179   public InputStream heapHisto(Object... args) throws IOException180   {181      return executeCommand("inspectheap", args);182   }183   // Set JVM command line flag.184   public InputStream setFlag(String name, String value) throws IOException185   {186      return executeCommand("setflag", name, value);187   }188   // Print command line flag.189   public InputStream printFlag(String name) throws IOException190   {191      return executeCommand("printflag", name);192   }193   // -- Supporting methods194   /**195    * Execute the given command in the target VM - specific platform implementation must implement196    * this.197    */198   abstract InputStream execute(String cmd, Object... args) throws AgentLoadException, IOException;199   /**200    * Convenience method for simple commands.201    */202   private InputStream executeCommand(String cmd, Object... args) throws IOException203   {204      try {205         return execute(cmd, args);206      }207      catch (AgentLoadException ignore) {208         throw new InternalError("Should not get here");209      }210   }211   /**212    * Utility method to read an 'int' from the input stream.213    * Ideally we should be using java.util.Scanner here but this implementation guarantees not to214    * read ahead.215    */216   int readInt(InputStream in) throws IOException...

Source:VirtualMachineUtil.java

...57        HotSpotVirtualMachine virtualMachine = null;58        try {59            virtualMachine = (HotSpotVirtualMachine) VirtualMachine.attach(String.valueOf(pid));60            try (InputStream in = command == null ? virtualMachine.remoteDataDump() :61                    virtualMachine.executeCommand("jcmd", command)) {62                ByteArrayOutputStream baos = new ByteArrayOutputStream();63                int count;64                byte[] buf = new byte[256];65                while ((count = in.read(buf)) != -1) {66                    baos.write(buf, 0, count);67                }68                return baos.toByteArray();69            }70        } finally {71            if (virtualMachine != null) {72                try {73                    virtualMachine.detach();74                } catch (IOException ignore) {75                }...

executeCommand

Using AI Code Generation

1import sun.tools.attach.*;2import java.io.IOException;3import java.util.Properties;4public class 4 {5    public static void main(String[] args) throws IOException {6        HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach("1234");7        vm.executeCommand("jcmd 1234 VM.version");8        vm.detach();9    }10}11import sun.tools.attach.*;12import java.io.IOException;13import java.util.Properties;14public class 5 {15    public static void main(String[] args) throws IOException {16        HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach("1234");17        vm.executeDiagnosticCommand("VM.version");18        vm.detach();19    }20}21import sun.tools.attach.*;22import java.io.IOException;23import java.util.Properties;24public class 6 {25    public static void main(String[] args) throws IOException {26        HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach("1234");27        vm.executeJCmd("VM.version");28        vm.detach();29    }30}31import sun.tools.attach.*;32import java.io.IOException;33import java.util.Properties;34public class 7 {35    public static void main(String[] args) throws IOException {36        HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach("1234");37        vm.executeJStack();38        vm.detach();39    }40}41import sun.tools.attach.*;42import java.io.IOException;43import java.util.Properties;44public class 8 {45    public static void main(String[] args) throws IOException {46        HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach("1234");47        vm.executeJMap();48        vm.detach();49    }50}51import sun.tools.attach.*;52import java.io.IOException;53import java.util.Properties;54public class 9 {55    public static void main(String[] args) throws

executeCommand

Using AI Code Generation

1import java.io.*;2import java.util.*;3import com.sun.tools.attach.*;4{5public static void main(String[] args) throws Exception6{7VirtualMachine vm = VirtualMachine.attach("1234");8vm.executeCommand("jcmd 1234 VM.native_memory summary");9vm.detach();10}11}12-                 Java Heap (reserved=1024M, committed=1024M)13-                     (mmap: reserved=1024M, committed=1024M)14-                 Class (reserved=10M, committed=10M)15-                     (mmap: reserved=10M, committed=10M)16-                 Thread (reserved=1M, committed=1M)17-                     (mmap: reserved=1M, committed=1M)18-                 Code Cache (reserved=240M, committed=240M)19-                     (mmap: reserved=240M, committed=240M)20-                 Metaspace (reserved=56M, committed=56M)21-                     (mmap: reserved=56M, committed=56M)22-                     Compressed Class Space (reserved=1M, committed=1M)23-                     (mmap: reserved=1M, committed=1M)24-                 Other (reserved=2M, committed=2M)25-                     (mmap: reserved=2M, committed=2M)26-                 Arena Chunk (reserved=4K, committed=4K)27-                     (mmap: reserved=4K, committed=4K)28import java.io.*;29import java.util.*;30import com.sun.tools.attach.*;31{32public static void main(String[] args) throws Exception33{34VirtualMachine vm = VirtualMachine.attach("1234");35vm.executeCommand("jcmd 1234 VM.uptime");36vm.detach();37}38}

executeCommand

Using AI Code Generation

1import sun.tools.attach.HotSpotVirtualMachine;2public class 4 {3    public static void main(String[] args) throws Exception {4        if (args.length < 1) {5            System.out.println("Usage: java 4 <pid>");6            System.exit(1);7        }8        HotSpotVirtualMachine vm = (HotSpotVirtualMachine) HotSpotVirtualMachine.attach(args[0]);9        String result = vm.executeCommand("jstack");10        System.out.println(result);11        vm.detach();12    }13}14Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.3-b01 mixed mode):15"Finalizer" daemon prio=8 tid=0x00007f9e9c005000 nid=0x2a06 in Object.wait() [0x0000000000000000]16   java.lang.Thread.State: WAITING (on object monitor)17"GC task thread#0 (ParallelGC)" prio=10 tid=0x00007f9e9c008000 nid=0

executeCommand

Using AI Code Generation

1import java.io.IOException;2import java.io.InputStream;3import java.io.OutputStream;4import java.util.Properties;5import sun.tools.attach.HotSpotVirtualMachine;6public class 4 {7    public static void main(String[] args) throws IOException {8        HotSpotVirtualMachine vm = new HotSpotVirtualMachine(pid);9        Properties props = vm.getSystemProperties();10        System.out.println(props);11        InputStream is = vm.remoteDataDump();12        OutputStream os = System.out;13        byte[] buffer = new byte[1024];14        while (true) {15            int n = is.read(buffer);16            if (n < 0)17                break;18            os.write(buffer, 0, n);19        }20        os.flush();21        is.close();22        vm.detach();23    }24}25import java.io.IOException;26import java.io.InputStream;27import java.io.OutputStream;28import java.util.Properties;29import sun.tools.attach.HotSpotVirtualMachine;30public class 5 {31    public static void main(String[] args) throws IOException {32        HotSpotVirtualMachine vm = new HotSpotVirtualMachine(pid);33        Properties props = vm.getSystemProperties();34        System.out.println(props);35        InputStream is = vm.remoteDataDump();36        OutputStream os = System.out;37        byte[] buffer = new byte[1024];38        while (true) {39            int n = is.read(buffer);40            if (n < 0)41                break;42            os.write(buffer, 0, n);43        }44        os.flush();45        is.close();46        vm.detach();47    }48}49import java.io.IOException;50import java.io.InputStream;51import java.io.OutputStream;52import java.util.Properties;53import sun.tools.attach.HotSpotVirtualMachine;54public class 6 {55    public static void main(String[] args) throws IOException {56        HotSpotVirtualMachine vm = new HotSpotVirtualMachine(pid);

executeCommand

Using AI Code Generation

1import java.io.IOException;2import java.lang.management.ManagementFactory;3import java.lang.management.RuntimeMXBean;4import java.lang.reflect.Method;5import java.util.List;6import sun.tools.attach.HotSpotVirtualMachine;7public class 4 {8    public static void main(String[] args) throws Exception {9        RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();10        String name = runtimeMXBean.getName();11        String pid = name.substring(0, name.indexOf("@"));12        HotSpotVirtualMachine hotSpotVirtualMachine = new HotSpotVirtualMachine(pid);13        String result = hotSpotVirtualMachine.executeCommand("jstack " + pid);14        System.out.println(result);15    }16}17import java.io.IOException;18import java.lang.management.ManagementFactory;19import java.lang.management.RuntimeMXBean;20import java.lang.reflect.Method;21import sun.tools.attach.HotSpotVirtualMachine;22public class 5 {23    public static void main(String[] args) throws Exception {24        RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();25        String name = runtimeMXBean.getName();26        String pid = name.substring(0, name.indexOf("@"));27        HotSpotVirtualMachine hotSpotVirtualMachine = new HotSpotVirtualMachine(pid);28        hotSpotVirtualMachine.attach("jstack " + pid);29    }30}31import java.io.IOException;32import java.lang.management.ManagementFactory;33import java.lang.management.RuntimeMXBean;34import java.lang.reflect.Method;35import sun.tools.attach.HotSpotVirtualMachine;36public class 6 {37    public static void main(String[] args) throws Exception {38        RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();39        String name = runtimeMXBean.getName();40        String pid = name.substring(0, name.indexOf("@"));41        HotSpotVirtualMachine hotSpotVirtualMachine = new HotSpotVirtualMachine(pid);42        hotSpotVirtualMachine.detach();43    }44}45import java.io.IOException;46import java.lang.management.ManagementFactory;47import java.lang.management.RuntimeMX

executeCommand

Using AI Code Generation

1import java.io.*;2import java.util.*;3import java.lang.reflect.*;4import java.lang.management.*;5import sun.tools.attach.*;6public class 4 {7    public static void main(String[] args) throws Exception {8        if (args.length != 2) {9            System.out.println("Usage: java 4 <pid> <command>");10            System.exit(1);11        }12        String pid = args[0];13        String command = args[1];14        HotSpotVirtualMachine vm = null;15        try {16            vm = (HotSpotVirtualMachine) VirtualMachine.attach(pid);17            InputStream is = vm.executeCommand(command);18            BufferedReader br = new BufferedReader(new InputStreamReader(is));19            String line;20            while ((line = br.readLine()) != null) {21                System.out.println(line);22            }23            br.close();24        } finally {25            if (vm != null) {26                vm.detach();27            }28        }29    }30}31import java.io.*;32import java.util.*;33import java.lang.reflect.*;34import java.lang.management.*;35import sun.tools.attach.*;36public class 5 {37    public static void main(String[] args) throws Exception {38        if (args.length != 1) {39            System.out.println("Usage: java 5 <pid>");40            System.exit(1);41        }42        String pid = args[0];43        HotSpotVirtualMachine vm = null;44        try {45            vm = (HotSpotVirtualMachine) VirtualMachine.attach(pid);46            System.out.println("Attached to JVM " + pid);47        } finally {48            if (vm != null) {49                vm.detach();50            }51        }52    }53}54import java.io.*;55import java.util.*;56import java.lang.reflect.*;57import java.lang.management.*;58import sun.tools.attach.*;59public class 6 {60    public static void main(String[] args) throws Exception {61        if (args.length != 1) {62            System.out.println("Usage: java 6 <pid>");63            System.exit(1);64        }65        String pid = args[0];66        HotSpotVirtualMachine vm = null;67        try {68            vm = (HotSpotVirtual

executeCommand

Using AI Code Generation

1import com.sun.tools.attach.VirtualMachine;2import java.io.File;3import java.io.IOException;4import java.util.List;5import java.util.ArrayList;6import java.util.Arrays;7import java.util.Properties;8import java.util.Set;9import java.util.TreeSet;10import java.util.logging.Level;11import java.util.logging.Logger;12public class 4 {13    private static final Logger LOGGER = Logger.getLogger(4.class.getName());14    private static final String SUN_TOOLS_ATTACH_JAR = "C:\\Program Files\\Java\\jdk1.8.0_131\\jre\\lib\\management-agent.jar";15    private static final String SUN_TOOLS_ATTACH_JAR_PATH = "C:\\Program Files\\Java\\jdk1.8.0_131\\jre\\lib\\";16    private static final String SUN_TOOLS_ATTACH_JAR_NAME = "management-agent.jar";17    private static final String SUN_TOOLS_ATTACH_CLASS = "com.sun.tools.attach.VirtualMachine";18    private static final String SUN_TOOLS_ATTACH_METHOD = "attach";19    private static final String SUN_TOOLS_ATTACH_METHOD_ARGS = "(Ljava/lang/String;)Lcom/sun/tools/attach/VirtualMachine;";20    private static final String SUN_TOOLS_ATTACH_EXECUTE_COMMAND_METHOD = "executeCommand";21    private static final String SUN_TOOLS_ATTACH_EXECUTE_COMMAND_METHOD_ARGS = "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;";22    private static final String SUN_TOOLS_ATTACH_EXECUTE_COMMAND_METHOD_ARGS2 = "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;";23    private static final String SUN_TOOLS_ATTACH_EXECUTE_COMMAND_METHOD_ARGS3 = "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;";24    private static final String SUN_TOOLS_ATTACH_EXECUTE_COMMAND_METHOD_ARGS4 = "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;";25    private static final String SUN_TOOLS_ATTACH_EXECUTE_COMMAND_METHOD_ARGS5 = "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;";26    private static final String SUN_TOOLS_ATTACH_EXECUTE_COMMAND_METHOD_ARGS6 = "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;";

executeCommand

Using AI Code Generation

1import java.io.*;2import java.lang.reflect.*;3import sun.tools.attach.*;4public class 4 {5    public static void main(String[] args) throws Exception {6        HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach(args[0]);7        vm.executeJCmd("jstack");8        vm.detach();9    }10}11import java.io.*;12import java.lang.reflect.*;13import sun.tools.attach.*;14public class 5 {15    public static void main(String[] args) throws Exception {16        HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach(args[0]);17        vm.executeJCmd("jstack");18        vm.detach();19    }20}21import java.io.*;22import java.lang.reflect.*;23import sun.tools.attach.*;24public class 6 {25    public static void main(String[] args) throws Exception {26        HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach(args[0]);27        vm.executeJCmd("jstack");28        vm.detach();29    }30}

executeCommand

Using AI Code Generation

1import sun.tools.attach.*;2import com.sun.tools.attach.*;3import java.io.*;4import java.util.*;5public class 4 {6public static void main(String[] args) throws Exception {7if (args.length != 2) {8System.err.println("Usage: java 4 <pid> <command>");9System.exit(1);10}11String pid = args[0];12String cmd = args[1];13VirtualMachine vm = VirtualMachine.attach(pid);14InputStream in = vm.getInputStream();15OutputStream out = vm.getOutputStream();16vm.executeCommand(cmd);17byte[] buf = new byte[1024];18int n = 0;19while ((n = in.read(buf)) > 0) {20System.out.write(buf, 0, n);21}22vm.detach();23}24}25import sun.tools.attach.*;26import com

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