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public class Something {
        private Something() {
        }
 
        private static class LazyHolder {
                public static final Something INSTANCE = new Something();
        }
 
        public static Something getInstance() {
                return LazyHolder.INSTANCE;

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		<bean id="templateResolver"
			class="org.thymeleaf.templateresolver.ServletContextTemplateResolver">
			<property name="prefix" value="/WEB-INF/views/" />
			<property name="suffix" value=".html" />
			<property name="templateMode" value="HTML5" />
		</bean>

		<bean id="templateEngine" class="org.thymeleaf.spring4.SpringTemplateEngine">
			<property name="templateResolver" ref="templateResolver" />
		</bean>

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public class ServletThreadSafety extends HttpServlet {
  /*
   * Since we have the context lock, we're assuming that once we get inside the synzchonized block, 
   * the context attributes are safe from other threads until we exit the block... soft of.  Safe 
   * means "safe from any other code that ALSO synchonizes on the ServletContext".
   *
   * But this is the best you've got for making the context attributes as thread-safe as you can.
   */
  @Override
  public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

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package sample.uic.web.controller;

import sample.uic.model.Organization;
import sample.uic.model.OrganizationUser;
import sample.uic.model.User;
import sample.uic.service.OrganizationService;
import sample.uic.service.UserService;
import com.google.common.collect.Lists;
import org.junit.Before;
import org.junit.Test;

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git branch -m old_branch new_branch         # Rename branch locally    
git push origin :old_branch                 # Delete the old branch    
git push --set-upstream origin new_branch   # Push the new branch, set local branch to track the new remote

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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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/**
 * JSONView.css
 * Custom Stylesheet for the JSONView Chrome extension
 *
 * by Scott Buchanan <buchanan.sc@gmail.com>
 * http://wafflesnatcha.github.com
 */

html, body {
  margin: 0;

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git config --global https.proxy http://127.0.0.1:1080

git config --global https.proxy https://127.0.0.1:1080

git config --global --unset http.proxy

git config --global --unset https.proxy


npm config delete proxy

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<?xml version="1.0" encoding="UTF-8"?>
<!-- <configuration debug="true"> 调试模式下，可输出logback的内部日志信息 -->
<configuration debug="false">


  <!-- 控制台输出 -->
  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
      <!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符 [%file:%line]日志所在文件及行数 %msg%n消息及换行-->
      <pattern>%d{yyyy-MM-dd HH:mm:ss} [%level][%thread]:%logger{50} [%method:%line] %msg%n</pattern>

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<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
    <localRepository>/opt/devtools/maven/repo</localRepository>
    <mirrors>
        <mirror>
            <id>maven-aliyun-mirror</id>
            <name>maven-aliyun-mirror</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>