Java 3D Desktop Environment旨在使用Java 3D来创建一个3D桌面环境。功能包括：分布式的应用程序

				package org.j3de.security;
				
				import javax.security.auth.Subject;
				import javax.security.auth.login.LoginContext;
				          
				import org.j3de.util.Configuration;     
				
				public class UserInfo {  
				  private Subject subject;
				  private Configuration configuration;
				  private LoginContext loginContext;
				  
				  public UserInfo(Subject subject, Configuration configuration, LoginContext loginContext) {
				    this.subject = subject;
				    this.configuration = configuration;
				    this.loginContext = loginContext;
				  }
				  
				  public Subject       getSubject() {
				    return subject;
				  }
				    
				  public Configuration getConfiguration() {  
				    return configuration;
				  }
				   
				  public LoginContext  getLoginContext() {   
				    return loginContext;
				  }
				}