我正在使用货物maven插件进行测试 . Cargo用于启动我们的webapp，然后针对它运行REST API测试 . 我们正在使用jetty 9.1.1 .
我使用的货物版本：1.4.8
这是货物插件的配置：
<dependencies>
<dependency>
<groupId>org.codehaus.cargo</groupId>
<artifactId>cargo-core-uberjar</artifactId>
<version>${cargo.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.cargo</groupId>
<artifactId>cargo-maven2-plugin</artifactId>
<version>${cargo.version}</version>
<configuration>
<wait>false</wait>
<container>
<containerId>jetty9x</containerId>
<timeout>180000</timeout>
<artifactInstaller>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-distribution</artifactId>
<version>${jetty.version}</version>
</artifactInstaller>
</container>
<configuration>
<type>standalone</type>
<properties>
<cargo.servlet.port>${jetty.port}</cargo.servlet.port>
<cargo.jvmargs>-Xmx1024m -XX:MaxPermSize=512m</cargo.jvmargs>
<cargo.logging>high</cargo.logging>
</properties>
</configuration>
<deployables>
<deployable>
<groupId>org.codehaus.cargo</groupId>
<artifactId>simple-war</artifactId>
<type>war</type>
<location>${unpacked.war.directory}</location>
<properties>
<context>portal</context>
</properties>
</deployable>
</deployables>
</configuration>
<executions>
<execution>
<id>start-server</id>
<phase>pre-integration-test</phase>
<goals>
<goal>start</goal>
</goals>
</execution>
<execution>
<id>stop-server</id>
<phase>post-integration-test</phase>
<goals>
<goal>stop</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
我们在其中一个servlet中的代码使用 org.eclipse.jetty.servlet.ServletContextHandler$Context
由于我们在带有jetty嵌入式的 生产环境 中运行，我们在 pom.xml 中使用它的模块中配置了jetty模块的 provided 范围 .
生产环境 中没有问题 .
但是当在货物中运行时，我得到以下例外：
java.lang.NoClassDefFoundError: org/eclipse/jetty/servlet/ServletContextHandler$Context
at my.package.DefaultServletConfiguration.setServletConfig(DefaultServletConfiguration.java:42)
at my.package.InitServlet.init(InitServlet.java:204)
at javax.servlet.GenericServlet.init(GenericServlet.java:244)
at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:612)
at org.eclipse.jetty.servlet.ServletHolder.initialize(ServletHolder.java:395)
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:871)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.deploy.bindings.StandardStarter.processBinding(StandardStarter.java:41)
at org.eclipse.jetty.deploy.AppLifeCycle.runBindings(AppLifeCycle.java:186)
at org.eclipse.jetty.deploy.DeploymentManager.requestAppGoal(DeploymentManager.java:498)
at org.eclipse.jetty.deploy.DeploymentManager.addApp(DeploymentManager.java:146)
at org.eclipse.jetty.deploy.providers.ScanningAppProvider.fileAdded(ScanningAppProvider.java:180)
at org.eclipse.jetty.deploy.providers.WebAppProvider.fileAdded(WebAppProvider.java:461)
at org.eclipse.jetty.deploy.providers.ScanningAppProvider$1.fileAdded(ScanningAppProvider.java:64)
at org.eclipse.jetty.util.Scanner.reportAddition(Scanner.java:609)
at org.eclipse.jetty.util.Scanner.reportDifferences(Scanner.java:528)
at org.eclipse.jetty.util.Scanner.scan(Scanner.java:391)
at org.eclipse.jetty.util.Scanner.doStart(Scanner.java:313)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.deploy.providers.ScanningAppProvider.doStart(ScanningAppProvider.java:150)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.deploy.DeploymentManager.startAppProvider(DeploymentManager.java:560)
at org.eclipse.jetty.deploy.DeploymentManager.doStart(DeploymentManager.java:235)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
at org.eclipse.jetty.server.Server.start(Server.java:387)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
at org.eclipse.jetty.server.Server.doStart(Server.java:354)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.xml.XmlConfiguration$1.run(XmlConfiguration.java:1255)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1174)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.eclipse.jetty.start.Main.invokeMain(Main.java:321)
at org.eclipse.jetty.start.Main.start(Main.java:817)
at org.eclipse.jetty.start.Main.main(Main.java:112)
Caused by: java.lang.ClassNotFoundException: org.eclipse.jetty.servlet.ServletContextHandler$Context
at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at org.eclipse.jetty.webapp.WebAppClassLoader.findClass(WebAppClassLoader.java:510)
at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:441)
at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:403)
... 45 more
我还尝试为jetty模块指定范围为 compile ，以便它们位于webapp内的 lib 目录中，但后来似乎有不同的类加载器问题 . 在webapp中加载 Context 类的加载器与加载jetty的加载器不同 .
这有什么不对？
更新
货物版本1.4.14和码头9.2.9.v20150224也是如此
更新2
我试图将jetty-servlet作为附加的jar依赖项放在classpath中，根据货物maven插件的文档：here
<container>
<containerId>jetty9x</containerId>
<timeout>180000</timeout>
<artifactInstaller>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-distribution</artifactId>
<version>${jetty.version}</version>
</artifactInstaller>
<dependencies>
<dependency>
<artifactId>jetty-servlet</artifactId>
...
</dependency>
</dependencies>
</container>
现在我看到 dependency 元素上有一个属性，名为 classpath ，它有2个值： shared 或 extra . 默认值为 extra . 我将尝试 shared 一，并将检查结果 .
更新3
classpath 对 container 依赖值 shared 没有帮助 . 我看到我的WebApp（来自servlet）只能看到以下jar：
.../target/cargo/installs/jetty-distribution-9.2.9.v20150224/jetty-distribution-9.2.9.v20150224/start.jar