hdfsreader源码打包后出现的fastjson2栈溢出错误

本来想解决datax读取hive出现的空文件报错问题，按照网上教程修改源码打包后发现这个错误，于是重新下载源码不做修改直接打包也出现这个栈溢出的错误

Start by reproducing the packaging failure from an unmodified DataX source tree and inspect the fastjson2 stack trace shown in the issue image. Trace where the HDFS reader is included during packaging and identify the cause of the overflow; done means a clean source build completes without that error.

Written by the indexing model from the issue text.