我设置了一个非常简单的“HelloWorld”服务来演示我的问题。它使用 maven-scr-plugin 生成服务描述符并进行 pax-exam 单元测试。但是当我尝试运行“mvn clean test”时，它会阻塞一段时间，然后给我这个错误：
org.ops4j.pax.swissbox.tracker.ServiceLookupException: gave up waiting for service com.liveops.examples.osgi.helloworld.HelloWorldService
如果我运行 'mvn -DskipTests=true package' 然后运行 'mvn test' （没有清理）它可以工作。不同之处似乎是在我的 META-INF/M ANIFEST.MF 文件中添加了这一行：
Service-Component: OSGI-INF/com.liveops.examples.osgi.helloworld.internal.HelloImpl.xml
有谁知道是否有办法确保在构建过程的早期添加此行，以便“mvn clean test”通过？还是我可能做错了什么？
作为参考，这里是 pom.xml、服务和单元测试。
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.liveops.examples</groupId>
<artifactId>HelloWorldService</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>bundle</packaging>
<dependencies>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.core</artifactId>
<version>4.3.1</version>
</dependency>
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam</artifactId>
<version>3.3.0</version>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-container-native</artifactId>
<version>3.3.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-junit4</artifactId>
<version>3.3.0</version>
</dependency>
<dependency>
<groupId>org.ops4j.pax.url</groupId>
<artifactId>pax-url-aether</artifactId>
<version>1.6.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.ops4j.pax.exam</groupId>
<artifactId>pax-exam-link-mvn</artifactId>
<version>3.3.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.5.8</version>
</dependency>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.framework</artifactId>
<version>4.0.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.scr.annotations</artifactId>
<version>1.9.0</version>
</dependency>
</dependencies>
<properties>
<namespace>com.liveops.examples.osgi.helloworld</namespace>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<!--
| the following instructions build a simple set of public/private classes into an OSGi bundle
-->
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<version>2.3.7</version>
<extensions>true</extensions>
<configuration>
<instructions>
<Bundle-SymbolicName>${project.name}</Bundle-SymbolicName>
<Bundle-Version>${project.version}</Bundle-Version>
<!-- Bundle-Activator>${namespace}.internal.HelloActivator</Bundle-Activator -->
<!--
| assume public classes are in the top package, and private classes are under ".internal"
-->
<Export-Package>!${namespace}.internal.*,${namespace}.*;version="${project.version}"</Export-Package>
<Private-Package>${namespace}.internal.*</Private-Package>
<!--
| each module can override these defaults in their osgi.bnd file
-->
<!--_include>-osgi.bnd</_include-->
</instructions>
</configuration>
<executions>
<execution>
<id>generate-manifest</id>
<phase>process-classes</phase>
<goals>
<goal>manifest</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-scr-plugin</artifactId>
<version>1.9.0</version>
<configuration>
<supportedProjectTypes>
<supportedProjectType>jar</supportedProjectType>
<supportedProjectType>bundle</supportedProjectType>
<supportedProjectType>war</supportedProjectType>
</supportedProjectTypes>
<generateAccessors>true</generateAccessors>
<strictMode>true</strictMode>
<specVersion>1.1</specVersion>
<outputDirectory>target/classes</outputDirectory>
</configuration>
<executions>
<execution>
<id>generate-scr-scrdescriptor</id>
<goals>
<goal>scr</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
HelloWorld 实现类
package com.liveops.examples.osgi.helloworld.internal;
import com.liveops.examples.osgi.helloworld.HelloWorldService;
import org.apache.felix.scr.annotations.Service;
import org.apache.felix.scr.annotations.Component;
@Component
@Service(HelloWorldService.class)
public class HelloImpl implements HelloWorldService
{
public String helloWorld(String personalization)
{
return "Hello " + personalization + "!";
}
}
单元测试
package com.liveops.examples.osgi.helloworld.internal;
import com.liveops.examples.osgi.helloworld.HelloWorldService;
import junit.framework.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.ops4j.pax.exam.Option;
import org.ops4j.pax.exam.Configuration;
import org.ops4j.pax.exam.junit.PaxExam;
import org.ops4j.pax.exam.util.PathUtils;
import javax.inject.Inject;
import static org.ops4j.pax.exam.CoreOptions.*;
@RunWith(PaxExam.class)
public class HelloImplTest
{
@Inject
HelloWorldService hws;
@Configuration
public static Option[] configuration() throws Exception{
return options(
systemProperty("org.ops4j.pax.logging.DefaultServiceLog.level").value("WARN"),
mavenBundle("org.apache.felix", "org.apache.felix.scr", "1.6.2"),
bundle("reference:file:" + PathUtils.getBaseDir() + "/target/classes"),
junitBundles());
}
@Test
public void testInjection()
{
Assert.assertNotNull(hws);
}
@Test
public void testHelloWorld() throws Exception
{
Assert.assertNotNull(hws);
Assert.assertEquals("Hello UnitTest!", hws.helloWorld("UnitTest"));
}
}