Allow users to login with case-sensitive usernames if pre-existing

Signed-off-by: Mitch Gaffigan <mitch.gaffigan@comcast.net>

Author: mgaffigan

server/src/com/mirth/connect/server/controllers/DefaultUserController.java

@@ -103,7 +103,16 @@ public User getUser(Integer userId, String userName) throws ControllerException
 Useruser = newUser();
 user.setId(userId);
 user.setUsername(userName);
-returnSqlConfig.getInstance().getReadOnlySqlSessionManager().selectOne("User.getUser", user);
+List<User> list = SqlConfig.getInstance().getReadOnlySqlSessionManager().selectList("User.getUser", user);
+// If we have multiple results, we want to prefer the case sensitive match
+if (userName != null) {
+for (Useru : list) {
+if (userName.equals(u.getUsername())) {
+returnu;
+ }
+ }
+ }
+returnlist.isEmpty() ? null : list.get(0);
  } catch (PersistenceExceptione) {
 thrownewControllerException(e);
  } finally {