public static void main(String[] args) throws Exception {
    String serverName = "AdminServer";
    String hostName = "127.0.0.1";
    String username = "";
    String password = "";
    int port = 7001;
    String protocol = "t3";
    String jndiroot = "/jndi/";
    String mserver = "weblogic.management.mbeanservers.domainruntime";
    JMXServiceURL serviceURL = new JMXServiceURL(protocol, hostName, port, jndiroot + mserver);
    Hashtable h = new Hashtable();
    h.put(Context.SECURITY_PRINCIPAL, username);
    h.put(Context.SECURITY_CREDENTIALS, password);
    h.put(JMXConnectorFactory.PROTOCOL_PROVIDER_PACKAGES, "weblogic.management.remote");
    JMXConnector connector = JMXConnectorFactory.connect(serviceURL, h);
    ObjectName objName = new ObjectName("com.bea:Name=" + serverName + ",Type=Server");
    String pathJKS = (String) connector.getMBeanServerConnection().getAttribute(objName, "CustomTrustKeyStoreFileName");
    System.out.println(pathJKS);

}