import javax.management.remote.rmi.RMIConnection; //导入依赖的package包/类
public static void main(String[] args) throws Exception {
    JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://");
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    RMIJRMPServerImplSub impl = new RMIJRMPServerImplSub();

    System.out.println("Creating connectorServer");
    connectorServer = new RMIConnectorServer(url, null, impl, mbs);
    System.out.println("Starting connectorServer");
    connectorServer.start();
    System.out.println("Making client");
    RMIConnection cc = impl.newClient(null);
    System.out.println("Closing client");
    cc.close();
    if (connectorServer.isActive()) {
        System.out.println("Stopping connectorServer");
        connectorServer.stop();
    }
    if (failure == null)
        System.out.println("TEST PASSED, no deadlock");
    else
        System.out.println("TEST FAILED");
}
 

import javax.management.remote.rmi.RMIConnection; //导入依赖的package包/类
@Override
protected void clientClosed(RMIConnection conn) throws IOException {
    System.out.println("clientClosed, will call connectorServer.stop");
    final Exchanger<Void> x = new Exchanger<Void>();
    Thread t = new Thread() {
        public void run() {
            try {
                connectorServer.stop();
            } catch (Exception e) {
                fail(e);
            }
        }
    };
    t.setName("connectorServer.stop");
    t.start();
    waitForBlock(t);
    /* If this thread is synchronized on RMIServerImpl, then
     * the thread that does connectorServer.stop will acquire
     * the clientList lock and then block waiting for the RMIServerImpl
     * lock.  Our call to super.clientClosed will then deadlock because
     * it needs to acquire the clientList lock.
     */
    System.out.println("calling super.clientClosed");
    System.out.flush();
    super.clientClosed(conn);
}
 

import javax.management.remote.rmi.RMIConnection; //导入依赖的package包/类
@Override
protected RMIConnection makeClient(String id, Subject subject) throws IOException {
    RMIConnectionImpl conn = (RMIConnectionImpl) super.makeClient(id, subject);
    connections.add(conn);
    return conn;
}
 

import javax.management.remote.rmi.RMIConnection; //导入依赖的package包/类
public RMIConnection makeClient() throws IOException {
    return super.makeClient("connection id", null);
}