It seems that all controlled threads are wrapped with `InterceptibleThread` in the Cassandra simulator. Does this work for ThreadPools (e.g., ForkJoinPool) as well? We had a hard time intercepting thread objects because they are used by the language runtime (e.g., GC threads) as well and we don’t want to interfere with them. Additionally, modifying application code just track thread creation isn’t ideal. To work around this, we came up with this combination of JVMTi and Java Agent solution and we use JVMTi to monitor thread creation and termination.
As for searching schedules, yes, it is hard to search all possible schedules. However, it turns out many searching algorithms such as probabilistic concurrency testing[1] or partial order sampling[2] are still better than random walk. So it is worth to give them a try.
[1] https://www.microsoft.com/en-us/research/wp-content/uploads/... [2] https://www.cs.columbia.edu/~junfeng/papers/pos-cav18.pdf