[QUESTION]JSONFactory中的CACHE_ITEMS一直在增长

### JSONFactory中的CACHE_ITEMS一直在增长，能控制他的大小吗？占用JVM太多了。操作的对象都是List>或者Map进行来回序列反序列化操作

Start by reproducing the reported List> and Map serialization and deserialization workload, then inspect how JSONFactory.CACHE_ITEMS grows during it. Done means determining whether the cache can be bounded and verifying that repeated operations no longer cause unbounded JVM memory use.

Written by the indexing model from the issue text.