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我有以下 Java 文件可以连接到 Wildfly 服务器：

import java.util.Arrays;

import javax.management.JMX;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import javax.management.remote.JMXConnector;
import javax.management.remote.JMXConnectorFactory;
import javax.management.remote.JMXServiceURL;
import org.apache.activemq.artemis.api.core.management.ObjectNameBuilder;
import org.jboss.messaging.jms.server.management.JMSServerControl;

public class sampleRun3 {
    public static void main(String[] args) throws Exception {
        JMXServiceURL url = new JMXServiceURL( "service:jmx:rmi:///jndi/rmi://"+"ServerIP"+":"+"9990"+"/jmxrmi" );
        JMXConnector connector = JMXConnectorFactory.connect( url );
        MBeanServerConnection server = connector.getMBeanServerConnection();
        ObjectName objectName = ObjectNameBuilder.DEFAULT.getActiveMQServerObjectName();
        //JMSSessionMode session = (JMSSessionMode) JMX.newMBeanProxy(server, objectName, JMSSessionMode.class, true);
        JMSServerControl controller = (JMSServerControl) JMX.newMBeanProxy(server,objectName,JMSServerControl.class,true );
        
        //System.out.println("Topics     :->"+Arrays.asList(controller.getTopicNames()));
        //System.out.println("Queues     :->"+Arrays.asList(controller.getQueueNames()));
        System.out.println("Conn Ids   :->"+Arrays.asList(controller.listConnectionIDs()));
        System.out.println("Remote Addr:->"+Arrays.asList(controller.listRemoteAddresses()));
    }
}

我收到以下错误：

Exception in thread "main" java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
        java.net.SocketTimeoutException: Read timed out]
        at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:369)
        at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270)
        at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:229)
        at sampleRun3.main(sampleRun3.java:15)
Caused by: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
        java.net.SocketTimeoutException: Read timed out]
        at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:136)
        at com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:205)
        at javax.naming.InitialContext.lookup(InitialContext.java:417)
        at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1955)
        at javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1922)
        at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:287)
        ... 3 more
Caused by: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
        java.net.SocketTimeoutException: Read timed out
        at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:307)
        at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
        at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:343)
        at sun.rmi.registry.RegistryImpl_Stub.lookup(RegistryImpl_Stub.java:116)
        at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:132)
        ... 8 more
Caused by: java.net.SocketTimeoutException: Read timed out
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
        at java.net.SocketInputStream.read(SocketInputStream.java:171)
        at java.net.SocketInputStream.read(SocketInputStream.java:141)
        at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:265)
        at java.io.DataInputStream.readByte(DataInputStream.java:265)
        at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:246)
        ... 12 more

我有另一个 java 文件，我在其中使用 JMXServiceURL 来检索活动 mbean 的数量及其工作正常。请在这方面提供帮助。我有用户 Server_IP、localhost 和 127.0.0.1 来连接，但都给出相同的结果，我在服务器本身上运行它。

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