FileHandler.java 文件源码

protected void closeWriter() {

    writerLock.writeLock().lock();
    try {
        if (writer == null)
            return;
        writer.write(getFormatter().getTail(this));
        writer.flush();
        writer.close();
        writer = null;
        date = "";
    } catch (Exception e) {
        reportError(null, e, ErrorManager.CLOSE_FAILURE);
    } finally {
        writerLock.writeLock().unlock();
    }
}