java.io.IOException: File name too long

protected abstract void error(final BaseDownloadTask task, final Throwable e)
task.fileName = %E3%80%8A%E5%9B%BD%E6%B5%B7%E5%A4%A7%E8%AE%B2%E5%A0%82%EF%BC%88%E7%AC%AC157%E6%9C%9F%EF%BC%89%EF%BC%9A%E5%85%B3%E4%BA%8E%E5%88%A9%E7%94%A8%E4%BC%81%E4%B8%9A%E5%BE%AE%E4%BF%A1%E6%8F%90%E5%8D%87%E5%9B%BD%E6%B5%B7%E5%86%85%E9%83%A8%E4%B8%9A%E5%8A%A1%E5%8D%8F%E5%90%8C%E5%92%8C%E5%A4%96%E9%83%A8%E5%B1%95%E4%B8%9A%E6%95%88%E7%8E%87%E7%9A%84%E5%BB%BA%E8%AE%AE%E3%80%8B%E5%9F%B9%E8%AE%AD%E8%AF%BE%E4%BB%B6.pptx
e.detailMessage = File name too long

How can I change the fileName? Thank you

The report centers on BaseDownloadTask.fileName and the protected error callback; start by tracing where fileName is assigned and how the IOException is surfaced. Done means establishing how a shorter filename can be used for this download and verifying that the long-name case no longer produces “File name too long”.