Java 类javax.mail.FolderClosedException 实例源码

protected synchronized void checkOpened() throws FolderClosedException {

        if (!opened) {

            throw new IllegalStateException("This operation is not allowed on a closed folder " + objectId);

        }
    }

@Override
protected void checkOpened() throws FolderClosedException {

    if (!opened) {

        throw new IllegalStateException("This operation is not allowed on a closed folder: " + getFullName() + " (" + objectId + ")");

    }
}