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1.DBUnit
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2.MOckito
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3.Hamcrest Matchers
Hamcrest ÊÇÒ»¸ö²âÊÔ¸¨Öú¹¤¾ß£¬ÌṩÁËÒ»Ì×ͨÓÃµÄÆ¥Åä·û Matcher£¬Áé»îʹÓÃÕâЩƥÅä·û¶¨ÒåµÄ¹æÔò£¬³ÌÐòÔ±¿ÉÒÔ¸ü¼Ó¾«È·µÄ±í´ï×Ô¼ºµÄ²âÊÔ˼Ï룬ָ¶¨ËùÏëÉ趨µÄ²âÊÔÌõ¼þ¡£
Junit4½áºÏHamcrestÌṩÁËеĶÏÑÔÓï¾ä-assertThat£¬Ö»ÐèÒ»¸öassertThatÓï¾ä£¬½áºÏHamcrestÌṩµÄÆ¥Åä·û£¬¾Í¿ÉÒÔ±í´ïÈ«²¿µÄ²âÊÔ˼Ïë¡£
 
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4.Configuration
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5.DbUtils
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6.IO
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7.Lang
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8.SLF4J
SLF4JÊÇΪ¸÷ÖÖloging APIsÌṩһ¸ö¼òµ¥Í³Ò»µÄ½Ó¿Ú£¬´Ó¶øÊ¹µÃ×îÖÕÓû§Äܹ»ÔÚ²¿ÊðµÄʱºòÅäÖÃ×Ô¼ºÏ£ÍûµÄloging APIsʵÏÖ¡£Slf4jÀàËÆÓÚApache Common-LoggingºÍLog4J£¬µ«Slf4j±ÈËüÃǶ¼ÒªÓÅÐã¡£
9.Google Collections
JavaµÄ¼¯ºÏ¿ò¼ÜÊÇJavaÀà¿âµ±ÖÐʹÓÃÆµÂÊ×î¸ßµÄ²¿·ÖÖ®Ò»£¬¶øGoogle Collections¿âÊÇÓÉGoogle»ùÓÚJava5.0 Collections Framework¿ª·¢µÄÒ»Ì×еÄJava¼¯ºÏ¿ò¼Ü£¬ÌṩһЩ¸ß¼¶¼¯ºÏ²Ù×÷µÄAPI¡£
10.c3p0
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public class DealLockTest implements Runnable {
static String i = new String();
static String j = new String();
private String str = null;
public DealLockTest(String str) {
this.str = str;
}
public static void main(String[] args) {
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package com.huawei.globe;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
public class CrossConectionContextSheet
{
 CrossCalition cc = new CrossCalition();
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