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   package org.smartcomps.twister.util.user.priv;
   
   import java.util.Collection;
   import java.util.Set;
   import java.util.HashSet;
   
   public class UserImpl {
       
       private String username;
      private String password;
      private Collection roles = new HashSet();
  
      public String getUsername() {
          return username;
      }
  
      public void setUsername(String username) {
          this.username = username;
      }
  
      public String getPassword() {
          return password;
      }
  
      public void setPassword(String password) {
          this.password = password;
      }
  
      public Collection getRoles() {
          return roles;
      }
  
      public void setRoles(Collection roles) {
          if (roles instanceof Set) {
              this.roles = roles;
          } else {
              this.roles = new HashSet(roles);
          }
      }
  
      public void addRole(RoleImpl role) {
          roles.add(role);
      }
  }