这通常是由于配置不一致或系统设置造成的。可以尝试在应用程序中启用调试模式并检查是否有错误。同时，可以在代码中使用以下示例来访问ActiveMQ jolokia：

import javax.management.*;
import org.apache.activemq.broker.jmx.*;

public class JolokiaTest {

    public static void main(String[] args) throws Exception {
        String targetHost = "localhost";
        int targetPort = 8161; // change this to the appropriate port

        BrokerService brokerService = new BrokerService();
        brokerService.start();

        JmxJolokiaAgent jolokiaAgent = new JmxJolokiaAgent();
        jolokiaAgent.setBrokerService(brokerService);
        jolokiaAgent.start();

        JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://" +
            targetHost + ":" + targetPort + "/jmxrmi");

        JMXConnector jmxc = JMXConnectorFactory.connect(url, null);
        MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();
        
        ObjectName mbeanName = new ObjectName("org.apache.activemq:type=Broker,brokerName=localhost");
        String attribute = "TotalProducerCount";
        Object producerCount = mbsc.getAttribute(mbeanName, attribute);
        System.out.println("Producer Count = " + producerCount.toString());

        jmxc.close();
        brokerService.stop();
    }

}

注意更改 targetHost 和 targetPort，如果需要的话，还需更改 attribute 来获取适当的参数。这应该能够避免在获取ActiveMQ jolokia响应时出现不一致的问题。