RMIConnectionIdTest.java

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/*
 * @test
 * @bug 4901808 7183800
 * @summary Check that RMI connection ids include IP address of a client network interface
 * @author Eamonn McManus
 *
 * @run clean RMIConnectionIdTest
 * @run build RMIConnectionIdTest
 * @run main RMIConnectionIdTest
 */

import java.net.*;
import javax.management.*;
import javax.management.remote.*;

public class RMIConnectionIdTest {
    public static void main(String[] args) throws Exception {
        System.out.println("Testing that RMI connection id includes " +
                           "IP address of a client network interface");
        MBeanServer mbs = MBeanServerFactory.createMBeanServer();
        JMXServiceURL url = new JMXServiceURL("rmi", null, 0);
        JMXConnectorServer cs =
            JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs);
        cs.start();
        JMXServiceURL addr = cs.getAddress();
        JMXConnector cc = JMXConnectorFactory.connect(addr);
        String connectionId = cc.getConnectionId();
        System.out.println("Got connection id: " + connectionId);
        if (!connectionId.startsWith("rmi://")) {
            System.out.println("TEST FAILED: does not begin with \"rmi://\"");
            System.exit(1);
        }
        String rest = connectionId.substring("rmi://".length());
        int spaceIndex = rest.indexOf(' ');
        if (spaceIndex < 0) {
            System.out.println("TEST FAILED: no space");
            System.exit(1);
        }
        String clientAddr = rest.substring(0, spaceIndex);
        InetAddress clientInetAddr = InetAddress.getByName(clientAddr);
        NetworkInterface ni = NetworkInterface.getByInetAddress(clientInetAddr);
        if (ni == null) {
            System.out.println("TEST FAILS: address not found");
            System.exit(1);
        }
        cc.close();
        cs.stop();
        System.out.println("Test passed");
    }
}