本地jar包含在WEB-INF / lib中，但仍然抛出ClassNotFoundException

Question

这是一个网络应用程序，每件事都打包在战争中。

我能够将一个名为remote_proxy-1.0.0.jar的本地jar安装到我的maven项目中（它包含在生成的工件的WEB-INF/lib目录中）。此jar文件包含接口Task和TaskRunner以及TaskRunner实现类TaskRunnerRemoteObject。一切都在编译，应用程序可以部署。下面是用于启动RMI服务器的引导代码

package rmi;

import java.io.*;
import java.nio.file.*;
import java.util.logging.*;
import static java.util.stream.Collectors.joining;
import java.util.stream.Stream;
import javax.enterprise.concurrent.ManagedExecutorService;
public class ProcessInit {

    public static Process startRMIServer(ManagedExecutorService pool, String WEBINF, int port, String jar) {
        ProcessBuilder pb = new ProcessBuilder();
        Path wd = Paths.get(WEBINF);
        pb.directory(wd.resolve("classes").toFile());
        Path lib = wd.resolve("lib");
        String cp = Stream.of("javabuilder.jar", "remote_proxy.jar", jar)
                .map(e -> lib.resolve(e).toString())
                .collect(joining(File.pathSeparator));
        pb.command("java", "-cp", "." + File.pathSeparator + cp, "rmi.BootStrap", String.valueOf(port));
        while (true) {
            try {
                Process p = pb.start();
                pool.execute(() -> flushIStream(p.getInputStream()));
                pool.execute(() -> flushIStream(p.getErrorStream()));
                return p;
            } catch (Exception ex) {
                ex.printStackTrace();
                System.out.println("Retrying....");
            }
        }
    }

    private static void flushIStream(InputStream is) {
        try (BufferedReader br = new BufferedReader(new InputStreamReader(is))) {
            br.lines().forEach(System.out::println);
        } catch (IOException ex) {
            Logger.getLogger(ProcessInit.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}


public class BootStrap {

    public static void main(String[] args) {
        int port = Integer.parseInt(args[0]);
        System.out.println("Instantiating a task runner implemenration on port: "  + port );
        try {
            System.setProperty("java.rmi.server.hostname", "localhost");
            TaskRunner runner = new TaskRunnerRemoteObject();
            TaskRunner stub = (TaskRunner)UnicastRemoteObject.exportObject(runner, 0);
            Registry reg = LocateRegistry.createRegistry(port);
            reg.rebind("runner" + port, stub);
        } catch (RemoteException ex) {
            Logger.getLogger(BootStrap.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

内部WEB-INF/lib

当这个类被执行时，它会抛出这个我不明白的错误，因为本地jar remote_proxy-1.0.0.jar包含在类路径中，我没有任何编译错误，但仍然得到这个异常。

Caused by: java.lang.ClassNotFoundException: remote_proxy.TaskRunnerRemoteObject