java - 从 ActionMessage 中删除 msg

Question

如何从 ActionMessage 中删除特定的错误消息。例如，下面msgKey是"ABC"和msg.getKey()是"ABC"。现在，当两者相同时，我想从 ActionMessage 中删除密钥。我该怎么做？

Iterator it = warningMessages.get(ActionMessages.GLOBAL_MESSAGE);       
while (it.hasNext()) {
    ActionMessage msg = (ActionMessage) it.next();
    if (msgKey.equalsIgnoreCase(msg.getKey())) {
                // remove msgKey from warningMessages
    }
}