caoxudong

package test;

import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;

public class JavaTest {

    private static class Node {
        public int value;

caoxudong

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.KeyStore;
import java.security.MessageDigest;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

caoxudong

package codec;

import java.security.Key;

import org.jose4j.jwe.ContentEncryptionAlgorithmIdentifiers;
import org.jose4j.jwe.JsonWebEncryption;
import org.jose4j.jwe.KeyManagementAlgorithmIdentifiers;
import org.jose4j.keys.AesKey;
import org.jose4j.lang.ByteUtil;
import org.jose4j.lang.JoseException;

caoxudong

package location.api.baidu;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.security.NoSuchAlgorithmException;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Map.Entry;

// java版计算signature签名

caoxudong

package demo.tool;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

caoxudong

import com.sun.btrace.annotations.*;
import static com.sun.btrace.BTraceUtils.*;

@BTrace
public class OfferTrace {

    @TLS
    private static long startTime = 0;

    @TLS

caoxudong

function Node(value) {
  this.value = value;
  this.left = null;
  this.right = null;
}

function build_btree(number_array) {  
  length = number_array.length;
  middle = Math.floor((0 + length - 1) / 2);
  root = new Node(number_array[middle]);

caoxudong

import java.io.*;
import java.util.*;
import sun.jvm.hotspot.memory.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.tools.*;

public class DumpClassURL extends Tool {
    public void run() {

caoxudong

Object Query Language (OQL)

$ java -version
java version "1.8.0_20"
Java(TM) SE Runtime Environment (build 1.8.0_20-b26)
Java HotSpot(TM) 64-Bit Server VM (build 25.20-b23, mixed mode)

OQL is SQL-like query language to query Java heap. OQL allows to filter/select information wanted from Java heap. While pre-defined queries such as "show all instances of class X" are already supported by HAT, OQL adds more flexibility. OQL is based on JavaScript expression language.

caoxudong

  1   b   java.lang.String::charAt (33 bytes)
  2   b   java.lang.Math::max (11 bytes)
  3   b   java.util.jar.Manifest$FastInputStream::readLine (167 bytes)
  4   b   sun.nio.cs.UTF_8$Decoder::decodeArrayLoop (553 bytes)
  5   b   java.util.Properties$LineReader::readLine (383 bytes)
  6   b   java.lang.String::hashCode (60 bytes)
  7   b   java.lang.String::indexOf (151 bytes)
  8   b   sun.nio.cs.ext.DoubleByteDecoder::decodeSingle (10 bytes)
  9   b   java.lang.String::lastIndexOf (156 bytes)
 10   b   java.lang.String::replace (142 bytes)