if (!newPassword1.getText().equals(newPassword2.getText()))
throw new IllegalArgumentException("New passwords are different");
changePassword(oldPassword.getTextChars(), newPassword1.getTextChars());
if (!newPassword1.getText().equals(newPassword2.getText()))
throw new IllegalArgumentException("New passwords are different");
changePassword(oldPassword.getTextChars(), newPassword1.getTextChars());