gistfile1.txt

import java.util.ArrayList;
import java.util.List;
import lombok.Data;
import sun.jvm.hotspot.debugger.Address;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.runtime.JavaThread;
import sun.jvm.hotspot.runtime.Threads;
import sun.jvm.hotspot.runtime.VM;
import sun.jvm.hotspot.tools.Tool;

public class PrintThreadIds extends Tool {
  public static void main(String[] args) {
    PrintThreadIds tool = new PrintThreadIds();
    tool.start(args);
    tool.stop();
  }

  @Override
  public void run() {
    List<ThreadInfo> infos = ThreadUtils.getAllThreadInfos();
    for (ThreadInfo info : infos) {
      System.out.printf("Thread@%s: tid=%d nid=0x%x\n",
                        info.getAddress(), info.getTid(), info.getNid());
    }
  }

  public static class ThreadUtils {
    public static List<ThreadInfo> getAllThreadInfos() {
      List<ThreadInfo> infos = new ArrayList<ThreadInfo>();
      Threads threads = VM.getVM().getThreads();
      for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) {
        Address address = thread.getAddress();
        long tid = getTid(thread);
        long nid = Long.parseLong(thread.getThreadProxy().toString());
        infos.add(new ThreadInfo(address, tid, nid));
      }
      return infos;
    }

    public static long getTid(JavaThread thread) {
      final long BAD_TID = -1L;

      Oop threadObj = thread.getThreadObj();
      Klass klass = threadObj.getKlass();
      if (!(klass instanceof InstanceKlass)) return BAD_TID;

      InstanceKlass instanceKlass = (InstanceKlass) klass;
      Field tidField = instanceKlass.findField("tid", TypeCode.LONG);
      if (!(tidField instanceof LongField)) return BAD_TID;

      long tid = ((LongField) tidField).getValue(threadObj);
      return tid;

    }
  }

  @Data(staticConstructor="of")
  public static  class ThreadInfo {
    private Address address;
    private long tid;
    private long nid;

    public ThreadInfo(final Address address, final long tid, final long nid) {
      this.address = address;
      this.tid = tid;
      this.nid = nid;
    }

    public Address getAddress() {
      return address;
    }

    public void setAddress(final Address address) {
      this.address = address;
    }

    public long getTid() {
      return tid;
    }

    public void setTid(final long tid) {
      this.tid = tid;
    }

    public long getNid() {
      return nid;
    }

    public void setNid(final long nid) {
      this.nid = nid;
    }
  }

  public interface TypeCode {
    String BOOLEAN = "Z";
    String BYTE = "B";
    String CHAR = "C";
    String SHORT = "S";
    String INT = "I";
    String LONG = "J";
    String FLOAT = "F";
    String DOUBLE = "D";
  }
}

gistfile2.txt

sudo java -classpath "/usr/lib/jvm/java-7-openjdk-amd64/lib/sa-jdi.jar:lombok.jar:." PrintThreadIds