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ybwei
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package com.ybw.spi.jdk.demo.service;
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/**
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* Demo service. Implements should be use SPI.
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*
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* @author ybw
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* @version V1.0
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* @className DemoService
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* @date 2022/6/29
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**/
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public interface DemoService {
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String sayHello();
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}
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package com.ybw.spi.jdk.demo.service.impl;
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import com.ybw.spi.jdk.demo.service.DemoService;
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/**
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* Implement for DemoService
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*
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* @author ybw
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* @version V1.0
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* @className DemoOneServiceImpl
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* @date 2022/6/29
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**/
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public class DemoOneServiceImpl implements DemoService {
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@Override
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public String sayHello() {
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return "hello world one";
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}
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}
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package com.ybw.spi.jdk.demo.service.impl;
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import com.ybw.spi.jdk.demo.service.DemoService;
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/**
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* Implement for DemoService
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*
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* @author ybw
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* @version V1.0
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* @className DemoOneServiceImpl
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* @date 2022/6/29
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**/
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public class DemoTwoServiceImpl implements DemoService {
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@Override
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public String sayHello() {
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return "hello world two";
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}
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}
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@ -1,2 +0,0 @@
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com.ybw.spi.jdk.demo.service.impl.DemoOneServiceImpl
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com.ybw.spi.jdk.demo.service.impl.DemoTwoServiceImpl
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@ -1,63 +0,0 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<configuration>
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<!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径 -->
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<!-- <property name="LOG_HOME" value="d:" /> -->
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<!-- ch.qos.logback.core.ConsoleAppender 控制台输出 -->
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<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
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<encoder>
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<pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %logger{36} - %msg%n
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</pattern>
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</encoder>
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</appender>
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<!-- error日志输出 -->
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<appender name="ErrorFile"
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class="ch.qos.logback.core.rolling.RollingFileAppender">
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<File>${LOG_HOME:-c:/}logs/error/error.log</File>
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<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
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<FileNamePattern>${LOG_HOME:-c:/}logs/error/error-%d{yyyy-MM-dd}.%i.log
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</FileNamePattern>
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<MaxHistory>3600</MaxHistory>
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<TimeBasedFileNamingAndTriggeringPolicy
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class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
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<MaxFileSize>100MB</MaxFileSize>
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</TimeBasedFileNamingAndTriggeringPolicy>
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</rollingPolicy>
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<layout class="ch.qos.logback.classic.PatternLayout">
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<pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %logger{36} - %msg%n
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</pattern>
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</layout>
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<filter class="ch.qos.logback.classic.filter.LevelFilter"><!-- 只打印错误日志 -->
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<level>ERROR</level>
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<onMatch>ACCEPT</onMatch>
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<onMismatch>DENY</onMismatch>
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</filter>
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</appender>
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<!-- 所有日志输出 -->
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<appender name="AllFile"
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class="ch.qos.logback.core.rolling.RollingFileAppender">
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<File>${LOG_HOME:-c:/}logs/all/all.log</File>
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<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
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<FileNamePattern>${LOG_HOME:-c:/}logs/all/all-%d{yyyy-MM-dd}.%i.log
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</FileNamePattern>
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<MaxHistory>3600</MaxHistory>
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<TimeBasedFileNamingAndTriggeringPolicy
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class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
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<MaxFileSize>100MB</MaxFileSize>
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</TimeBasedFileNamingAndTriggeringPolicy>
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</rollingPolicy>
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<layout class="ch.qos.logback.classic.PatternLayout">
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<pattern>[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %logger{36} - %msg%n
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</pattern>
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</layout>
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</appender>
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<root level="info">
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<appender-ref ref="stdout" />
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<appender-ref ref="ErrorFile" />
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<appender-ref ref="AllFile" />
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</root>
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</configuration>
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package com.ybw.spi.jdk.demo.app;
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import com.ybw.spi.jdk.demo.service.DemoService;
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import lombok.extern.slf4j.Slf4j;
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import org.junit.jupiter.api.Test;
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import java.util.ServiceLoader;
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/**
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* 加载使用
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*
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* @author ybw
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* @version V1.0
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* @className SpiTest
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* @date 2022/6/29
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**/
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@Slf4j
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public class SpiTest {
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/**
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* @methodName: spiTest
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* @return: void
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* @author: ybw
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* @date: 2022/6/29
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**/
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@Test
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public void spiTest() {
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ServiceLoader<DemoService> demoServices = ServiceLoader.load(DemoService.class);
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demoServices.forEach(demoService -> {
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log.info(demoService.getClass().getName());
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log.info("ClassLoader:{}",demoService.getClass().getClassLoader());
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log.info(demoService.sayHello());
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});
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}
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}
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.ybw</groupId>
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<artifactId>spi-jdk-demo</artifactId>
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<artifactId>spring-demo-starter</artifactId>
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<version>1.0.0</version>
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<name>spi-jdk-demo</name>
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<description>SPI全称，Service Provider Interface，服务提供者接口</description>
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<name>spring-demo-starter</name>
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<description>自定义starter</description>
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<properties>
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<java.version>1.8</java.version>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<spring-boot.version>2.6.6</spring-boot.version>
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<spring-boot.version>2.4.1</spring-boot.version>
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</properties>
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<dependencies>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<version>${spring-boot.version}</version>
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<version>2.4.1</version>
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<configuration>
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<mainClass>com.ybw.spi.jdk.demo.SpiJdkDemoApplication</mainClass>
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<mainClass>com.ybw.spring.demo.starter.SpringDemoStarterApplication</mainClass>
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</configuration>
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<executions>
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<execution>
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package com.ybw.spring.demo.starter;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class SpringDemoStarterApplication {
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public static void main(String[] args) {
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SpringApplication.run(SpringDemoStarterApplication.class, args);
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}
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}
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# 应用名称
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spring.application.name=spring-demo-starter
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# 应用服务 WEB 访问端口
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server.port=8080
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@ -0,0 +1,13 @@
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package com.ybw.spring.demo.starter;
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import org.junit.jupiter.api.Test;
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import org.springframework.boot.test.context.SpringBootTest;
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@SpringBootTest
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class SpringDemoStarterApplicationTests {
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@Test
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void contextLoads() {
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}
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}
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