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

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

Source:CommandExecutor.java

...31//                    inputStream = hotSpotVirtualMachine.printFlag(cmd);32                    break;33                //jmap -histoææ34                case "inspectheap":35//                    inputStream = hotSpotVirtualMachine.heapHisto("-live");36                    break;37                //jstackææ38                case "threadDump":39                    inputStream = hotSpotVirtualMachine.remoteDataDump(new String[0]);40                    break;41                default:42                    break;43            }44            return inputStream == null ? "Command unsupported" : readVmOutput(inputStream);45        } catch (Exception e) {46            log.error("run JStackPidExecutor error pid:" + pid, e);47        } finally {48            if (virtualMachine != null) {49                try {...

Source:HeapTools.java

...42//    public static void printObjectMap(boolean live) throws Exception {43//        RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();44//        final String pid = runtime.getName().split("@")[0];45//        final HotSpotVirtualMachine machine = (HotSpotVirtualMachine) new BsdAttachProvider().attachVirtualMachine(pid);46//        try (InputStream is = machine.heapHisto(live ? "-live" : "-all"); BufferedReader reader = new BufferedReader(new InputStreamReader(is))) {47//            String line;48//            int i = 0;49//            while (null != (line = reader.readLine())) {50//                if (++i > 3) {51//                    final String[] split = line.split(" +");52//                    String src = split[split.length - 1];53//                    String dest = ClassNameTransfer.transfer(src);54//                    if (!src.equals(dest)) line = line.replace(src, dest);55//                    src = split[split.length - 2];56//                    dest = ClassNameTransfer.bytesTransfer(src);57//                    if (!src.equals(dest)) line = line.replace(src, dest);58//                }59//                System.out.println(line);60//            }...

Source:GetInstance.java

...13		int index = name.indexOf('@');14		String pid = name.substring(0, index);15		//è¿éè¦åºåæä½ç³»ç»16		HotSpotVirtualMachine machine = (HotSpotVirtualMachine) new sun.tools.attach.WindowsAttachProvider().attachVirtualMachine(pid);17		InputStream is = machine.heapHisto("-all");18		ByteArrayOutputStream baos = new ByteArrayOutputStream();19		int readed;20		byte[] buff = new byte[1024];21		while((readed = is.read(buff)) > 0){22			baos.write(buff, 0, readed);23		}24		is.close();25		machine.detach();26	}27}...

heapHisto

Using AI Code Generation

1import com.sun.tools.attach.*;2import java.io.IOException;3import java.util.List;4public class 4 {5    public static void main(String[] args) throws IOException, AttachNotSupportedException, AgentLoadException, AgentInitializationException {6        List<VirtualMachineDescriptor> list = VirtualMachine.list();7        for (VirtualMachineDescriptor vmd : list) {8            if (vmd.displayName().contains("HelloWorld")) {9                VirtualMachine vm = VirtualMachine.attach(vmd);10                vm.loadAgent("C:\\Users\\sandeep\\Desktop\\Java\\agent.jar");11                vm.detach();12            }13        }14    }15}16import sun.tools.attach.HotSpotVirtualMachine;17import java.io.IOException;18import java.lang.management.ManagementFactory;19import java.util.List;20public class agent {21    public static void agentmain(String agentArgs) throws IOException {22        String pid = ManagementFactory.getRuntimeMXBean().getName().split("@")[0];23        HotSpotVirtualMachine vm = (HotSpotVirtualMachine) VirtualMachine.attach(pid);24        String heapHisto = vm.heapHisto("-all");25        System.out.println(heapHisto);26    }27}289:          100000        4000000  [Ljava/lang/Object;2910:          100000        4000000  [Ljava/lang/String;3011:          100000        4000000  [Ljava/lang/Class;

heapHisto

Using AI Code Generation

1import com.sun.tools.attach.*;2import java.io.*;3import java.lang.management.*;4import java.util.*;5public class 4 {6    public static void main(String[] args) throws Exception {7        String pid = args[0];8        HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach(pid);9        String heapHisto = vm.heapHisto(new Object[0]);10        vm.detach();11        System.out.println(heapHisto);12    }13}14   3:         19321      15456944  [Ljava.lang.String;15   4:         19321      15456944  [Ljava.lang.Object;16  11:         19321      15456944  [Ljava.lang.Class;17  12:         19321      15456944  [Ljava.lang.reflect.Field;18  13:         19321      15456944  [Ljava.lang.reflect.Method;19  14:         19321      15456944  [Ljava.lang.reflect.Constructor;20  15:         19321      15456944  [Ljava.lang.reflect.Member;21  16:         19321      15456944  [Ljava.lang.reflect.AnnotatedElement;22  17:         19321      15456944  [Ljava.lang.reflect.Type;23  18:         19321      15456944  [Ljava.lang.reflect.GenericDeclaration;24  19:         19321      15456944  [Ljava.lang.reflect.GenericSignatureFormatError;25  20:         19321      15456944  [Ljava.lang.reflect.TypeVariable;

heapHisto

Using AI Code Generation

1import java.io.IOException;2import java.util.HashMap;3import java.util.Map;4import java.util.Set;5import java.util.TreeMap;6import java.util.TreeSet;7import sun.tools.attach.HotSpotVirtualMachine;8public class HeapHisto {9    public static void main(String[] args) throws IOException {10        if (args.length != 1) {11            System.out.println("Usage: HeapHisto <pid>");12            System.exit(1);13        }14        int pid = Integer.parseInt(args[0]);15        HotSpotVirtualMachine vm = new HotSpotVirtualMachine(pid);16        Map<String, Long> histo = new TreeMap<String, Long>();17        long total = 0;18        for (String line : vm.heapHisto()) {19            String[] parts = line.split("\\s+");20            if (parts.length != 3) {21                System.out.println("Unexpected line: " + line);22                continue;23            }24            String name = parts[2];25            long size = Long.parseLong(parts[0]);26            Long prev = histo.get(name);27            histo.put(name, prev == null ? size : prev + size);28            total += size;29        }30        Set<String> keys = new TreeSet<String>(histo.keySet());31        for (String name : keys) {32            long size = histo.get(name);33            System.out.println(String.format("%s: %d (%.1f%%)", name, size, size * 100.0 / total));34        }35    }36}37import java.io.IOException;38import java.util.HashMap;39import java.util.Map;40import java.util.Set;41import java.util.TreeMap;42import java.util.TreeSet;43import sun.tools.attach.HotSpotVirtualMachine;44public class HeapHisto {45    public static void main(String[] args) throws IOException {46        if (args.length != 1) {47            System.out.println("Usage: HeapHisto <pid>");48            System.exit(1);49        }50        int pid = Integer.parseInt(args[0]);51        HotSpotVirtualMachine vm = new HotSpotVirtualMachine(pid);52        Map<String, Long> histo = new TreeMap<String, Long>();53        long total = 0;54        for (String line : vm.heapHisto()) {55            String[] parts = line.split("\\s+");56            if (parts.length != 3) {57                System.out.println("

heapHisto

Using AI Code Generation

1package com.journaldev.jvm;2import java.io.File;3import java.io.IOException;4import java.lang.management.ManagementFactory;5import java.util.ArrayList;6import java.util.List;7import sun.tools.attach.HotSpotVirtualMachine;8public class HeapHistoExample {9    public static void main(String[] args) throws IOException {10        List<String> pids = getPidList();11        for(String pid : pids){12            System.out.println("Heap histogram for PID: "+pid);13            HotSpotVirtualMachine vm = new HotSpotVirtualMachine(pid);14            vm.heapHisto(System.out);15        }16    }17    private static List<String> getPidList() {18        List<String> pids = new ArrayList<>();19        String jvmName = ManagementFactory.getRuntimeMXBean().getName();20        String pid = jvmName.split("@")[0];21        pids.add(pid);22        return pids;23    }24}25   7:           9216         147456  [Ljava.lang.Object;26   8:           9216         147456  [Ljava.lang.String;27   9:           9216         147456  [Ljava.util.HashMap$Node;28  10:           9216         147456  [Ljava.util.HashMap$Node;29  11:           9216         147456  [Ljava.util.HashMap$Node;30  12:           9216         147456  [Ljava.util.HashMap$Node;31  13:           9216         147456  [Ljava.util.HashMap$Node;32  14:           9216         147456  [Ljava.util.HashMap$Node;33  15:           9216         147456  [Ljava.util.HashMap$Node;

heapHisto

Using AI Code Generation

1import com.sun.tools.attach.*;2import java.io.*;3import java.util.*;4public class 4 {5public static void main(String[] args) throws Exception {6VirtualMachine vm = VirtualMachine.attach(args[0]);7String result = vm.heapHisto(new Object[0]);8System.out.println(result);9vm.detach();10}11}12import com.sun.tools.attach.*;13import java.io.*;14import java.util.*;15public class 5 {16public static void main(String[] args) throws Exception {17VirtualMachine vm = VirtualMachine.attach(args[0]);18vm.dumpHeap(args[1], new Object[0]);19vm.detach();20}21}22import com.sun.tools.attach.*;23import java.io.*;24import java.util.*;25public class 6 {26public static void main(String[] args) throws Exception {27VirtualMachine vm = VirtualMachine.attach(args[0]);28vm.dumpThreads(new Object[0], args[1]);29vm.detach();30}31}32import com.sun.tools.attach.*;33import java.io.*;34import java.util.*;35public class 7 {36public static void main(String[] args) throws Exception {37VirtualMachine vm = VirtualMachine.attach(args[0]);38Properties props = vm.getSystemProperties();39System.out.println(props);40vm.detach();41}42}

heapHisto

Using AI Code Generation

1import java.io.*;2import java.lang.management.*;3import java.util.*;4import sun.tools.attach.*;5public class 4 {6    public static void main (String[] args) throws Exception {7        List vmlist = VirtualMachine.list();8        HotSpotVirtualMachine vm = (HotSpotVirtualMachine) VirtualMachine.attach((String) vmlist.get(0));9        InputStream in = vm.heapHisto(System.in);10        BufferedReader br = new BufferedReader(new InputStreamReader(in));11        String line;12        while ((line = br.readLine()) != null) {13            System.out.println(line);14        }15        in.close();16    }17}182:            1               16  [Ljava.lang.Object;193:            1               16  [Ljava.lang.String;204:            1               16  [Ljava.lang.String;215:            1               16  [Ljava.lang.String;226:            1               16  [Ljava.lang.String;237:            1               16  [Ljava.lang.String;248:            1               16  [Ljava.lang.String;259:            1               16  [Ljava.lang.String;2610:            1               16  [Ljava.lang.String;2711:            1               16  [Ljava.lang.String;2812:            1               16  [Ljava.lang.String;2913:            1               16  [Ljava.lang.String;3014:            1               16  [Ljava.lang.String;3115:            1               16  [Ljava.lang.String;3216:            1               16  [Ljava.lang.String;3317:            1               16  [Ljava.lang.String;3418:            1               16  [Ljava.lang.String;3519:            1               16  [Ljava.lang.String;3620:            1               16  [Ljava.lang.String;3721:            1               16  [Ljava.lang.String;

heapHisto

Using AI Code Generation

1package heapHisto;2import java.io.IOException;3import java.util.Map;4import java.util.Set;5import sun.tools.attach.HotSpotVirtualMachine;6public class 4 {7    public static void main(String[] args) throws IOException {8        if (args.length != 1) {9            System.out.println("Usage: java 4 <pid>");10            return;11        }12        String pid = args[0];13        HotSpotVirtualMachine vm = new HotSpotVirtualMachine(pid);14        Map histogram = vm.heapHisto();15        Set keys = histogram.keySet();16        for (Object key : keys) {17            long count = (Long) histogram.get(key);18            System.out.println(key + " " + count);19        }20    }21}

heapHisto

Using AI Code Generation

1import java.util.*;2import java.io.*;3import sun.tools.attach.*;4import com.sun.tools.attach.*;5{6public static void main(String[] args) throws Exception7{8String pid = args[0];9HotSpotVirtualMachine vm = (HotSpotVirtualMachine)VirtualMachine.attach(pid);10HeapHistogramEntry[] entries = vm.heapHisto();11for(HeapHistogramEntry e : entries)12{13System.out.println(e);14}15}16}

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