使用jetty调试web应用，出现

JSP support not configured

的问题，原因是缺少依赖的jar

jsp-2.1-jetty

maven依赖如下：

<properties>
    <jetty.version>6.1.26</jetty.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>jetty</artifactId>
        <version>${jetty.version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>jetty-plus</artifactId>
        <version>${jetty.version}</version>
    </dependency>
    <dependency>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>jetty-naming</artifactId>
        <version>${jetty.version}</version>
    </dependency>
    <dependency>
        <groupId>org.mortbay.jetty</groupId>
        <artifactId>jsp-2.1-jetty</artifactId>
        <version>${jetty.version}</version>
        <scope>test</scope>
    </dependency>
</dependencies>

 JAVA代码如下：

import org.mortbay.jetty.Connector;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.nio.SelectChannelConnector;
import org.mortbay.jetty.webapp.WebAppContext;
import org.mortbay.thread.QueuedThreadPool;

public class Runner {

    private static Server server = new Server();

    public static void main(String[] args) throws Exception {

        QueuedThreadPool boundedThreadPool = new QueuedThreadPool();
        boundedThreadPool.setMaxThreads(100);
        server.setThreadPool(boundedThreadPool);

        Connector connector = new SelectChannelConnector();
        connector.setPort(8080);
        server.addConnector(connector);

        WebAppContext context = new WebAppContext("src/main/webapp", "/");
        context.setConfigurationClasses(new String[] { "org.mortbay.jetty.webapp.WebInfConfiguration",
                "org.mortbay.jetty.plus.webapp.EnvConfiguration", "org.mortbay.jetty.plus.webapp.Configuration",
                "org.mortbay.jetty.webapp.JettyWebXmlConfiguration", "org.mortbay.jetty.webapp.TagLibConfiguration" });

        server.setHandler(context);
        server.setStopAtShutdown(true);
        server.setSendServerVersion(true);
        server.start();
        server.join();
    }
}