OIM API To Get User Deatils

package com.oimacademy.users;
import java.util.HashSet;
import java.util.Set;
import oracle.iam.identity.exception.NoSuchUserException;
import oracle.iam.identity.exception.UserLookupException;
import oracle.iam.identity.usermgmt.api.UserManager;
import oracle.iam.identity.usermgmt.vo.User;
import oracle.iam.oimcommon.impl.UserServiceImpl;
import oracle.iam.platform.authz.exception.AccessDeniedException;
import com.oimacademy.connection.Platform;
public class GetUserDeatils {
 public String getUserKey(String userKey) throws NoSuchUserException, UserLookupException, AccessDeniedException {
  // Get user details..
  System.out.println("Inside registerUser Method..!");
  System.out.println("Connection Established With Credentials ..!");
  UserManager userManager = (UserManager) Platform.getService(UserManager.class);
  Set<String> searchAttrs = new HashSet<String>();
  searchAttrs.add("Status");
  searchAttrs.add("Role");
  searchAttrs.add("First Name");
  searchAttrs.add("Last Name");
  searchAttrs.add("usr_timezone");
  searchAttrs.add("usr_locale");
  searchAttrs.add("Postal Code");
  searchAttrs.add("usr_pwd_expire_date");
  User userLookup = userManager.getDetails(userKey, new UserServiceImpl().getAllUserAttributes(), false);
  System.out.println("key : " + userLookup.getEntityId());
  System.out.println("attributes : " + userLookup.getAttributes());
  System.out.println("usr_pwd_expire_date : " + (String)userLookup.getAttributes().get("usr_pwd_expire_date"));
  System.out.println("Done");
  return userLookup.getEntityId();
 }
public static void main(String[] args) {
 try {
  new GetUserDeatils().getUserKey("8450"); 
 } catch (NoSuchUserException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
 }catch (UserLookupException e){
 e.printStackTrace();
 }catch( AccessDeniedException e){
 e.printStackTrace();
 }
}
}