AsyncExecutor requirement failed: count cannot be decreased

[hvesalai]

When shutting down, this exception can sometimes be seen.

Exception in thread "AsyncExecutor.default-17" java.lang.IllegalArgumentException: requirement failed: count cannot be decreased
	at scala.Predef$.require(Predef.scala:224)
	at slick.util.ManagedArrayBlockingQueue$$anonfun$decreaseInUseCount$1.apply$mcV$sp(ManagedArrayBlockingQueue.scala:54)
	at slick.util.ManagedArrayBlockingQueue$$anonfun$decreaseInUseCount$1.apply(ManagedArrayBlockingQueue.scala:53)
	at slick.util.ManagedArrayBlockingQueue$$anonfun$decreaseInUseCount$1.apply(ManagedArrayBlockingQueue.scala:53)
	at slick.util.ManagedArrayBlockingQueue.locked(ManagedArrayBlockingQueue.scala:202)
	at slick.util.ManagedArrayBlockingQueue.decreaseInUseCount(ManagedArrayBlockingQueue.scala:53)
	at slick.util.AsyncExecutor$$anon$2$$anon$1.afterExecute(AsyncExecutor.scala:128)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1157)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

[nsitbon]

I'm still having the same issue even with the latest version of slick (3.2.3) and number of connection = number of thread. This is really annoying because of I have another bug with my Sentry Logback appender which prevents me from dropping that kind of exception so my logs are full of this exceptions and it's really hard to see real exceptions among those.

[lenin122]

We still have this issue with Slick 3.3.2 inside Play Framework with play-slick 5.0.0
Exception in thread "db-5" java.lang.IllegalArgumentException: requirement failed: count cannot be decreased

We are using rather heavy queries inside transactional block and before we get timeout exception on get connection, we see this error.