找出池中有多少排队的任务

Question

我怎么知道队列中有多少个任务， 除了进行内存转储？ 看起来，即使运行了超过5000个任务，该计数仍为5000。

WARN  c.p.c.e.ExceptionHandler - Error id is 1. General exception. URL: http://<url>, exception is: Executor [java.util.concurrent.ThreadPoolExecutor@number[Running, pool size = 3, active threads = 3, queued tasks = 5000, completed tasks = 43869]] did not accept task: org.springframework.aop.interceptor.AsyncExecutionInterceptor$1@number