/** Clean out state because of a failed authentication attempt */
private void cleanState() {
username = null;
if (password != null) {
Arrays.fill(password, ' ');
password = null;
}
try {
if (ctx != null) {
ctx.close();
}
} catch (NamingException e) {
// ignore
}
ctx = null;
if (clearPass) {
sharedState.remove(USERNAME_KEY);
sharedState.remove(PASSWORD_KEY);
}
}
