com.github.benmanes.caffeine.cache.SSLSMWA class of caffeine-cache consuming very high memory

Question

I have initialized my cache in the following way:

Cache<Key, Entry> sharedCache =Caffeine.newBuilder()
                 .ticker (ticker::read)
                 .expireAfter(new ExpirySetting())
                 .weigher( a weigher logic that calculates the bytes consumed by each entry value)
                 .maximumWeight(maxBytesInMemory) //maxBytesInMemory =242 MB
                 .executor(executor)
                 .scheduler(scheduler)
                 .build();

There is a weightedSize variable that keeps track of the total weight consumed at any point of time. When the value of this reaches the maxWeightedSize (242 MB as set in the caffeine initialization), eviction start to happen as expected.

but the object com.github.benmanes.caffeine.cache.SSLSMWA consumes a lot of memory (way higher than the maxWeightedSize i.e 242 MB), example of such instances are provided below:

Unique requests were sent at the rate of 25 per second for 40 mins so that all the requests are getting writen to cache and heap dumps were taken every 3 min. Below are the observations:

com.github.benmanes.caffeine.cache.SSLSMWA: 262.4 MB | maxWeightedSize: 242.194645 MB | weightedSize: 198.201916 MB | time elapsed: 18 min
{Retained size of SSLSMWA (262.4 MB) already exceeded the max weight (242 MB) but the weighted size is still below max weight.}

com.github.benmanes.caffeine.cache.SSLSMWA:289.2 MB | maxWeightedSize: 242.194645 MB | weightedSize: 218.480108 MB | time elapsed: 21 min

com.github.benmanes.caffeine.cache.SSLSMWA:314.3 MB] maxWeightedSize: 242.194645 MB | weightedSize: 237.563964 MB | time elapsed: 24 min

com.github.benmanes.caffeine.cache.SSLSMWA:320.5 MB | maxWeightedSize: MB | weightedSize: 242.193292 MB | time elapsed : 27 min
{weighted size approaches maxweight}

com.github.benmanes.caffeine.cache.SSLSMWA: 299.1 MB | maxWeightedSize: 242.194645 MB | weightedSize: 226.00419 MB | time elapsed: 30 min {weighted size starts to reduce, retained size of SSLSMWA also starts to reduce}

com.github.benmanes.caffeine.cache.SSLSMWA: 258.8 MB | maxWeightedSize: 242.194645 MB | weightedSize: 195.53424 MB | time elapsed: 33 min

com.github.benmanes.caffeine.cache.SSLSMWA: 231.9 MB | maxWeightedSize: 242.194645 MB | weightedSize: 175.148864 MB | time elapsed: 36 min

Can you please answer the following questions ?

1.) What is the use of SSLSMWA class?

2.) Why is the com.github.benmanes.caffeine.cache.SSLSMWA consuming so much memory (causing my application to use 99% of the heap)? Why is it not contained within the maxWeightedSize (i.e. 242 MB)