Hi guys,
i have got a problem about NullPointer-Exceptions....on my EJB i have got a
method....this one:
public String[] findOnlineUser() {
Query query = entityManager.createQuery("SELECT x FROM UserInformation
x WHERE x.online='"+true+"'");
List<UserInformation> userList = (List<UserInformation>)
query.getResultList();
String[] users = new String[userList.size()];
int i=0;
for(UserInformation user:userList) {
users[i] = user.getId();
i++;
}
if(userList.size()==0)
return new String[] {};
return users;
}
On my testprogramm I have got a source code looks like this....
UserService userService =
service.getPort(UserService.class);
String[] onlineUsers = userService.findOnlineUser("myId");
System.out.println(onlineUsers);
My Output > null
But in my method i try to hide the result of "null". Is there any mistake or
is it because XML-Transformation via Webservices (Data - to SOAP - to Data)?
Kind of Regards
george
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