This problem is not going to go away so easily. Numerous core Java classes (like BufferedInputStream) use synchronized. I count 1600+ usages in java.base. The blocking issue means it's _much_ easier to accidentally run into this, rather than waving it away as an unlikely edge case.
I personally ran into this Using the built in com.sun webserver, with a virtual thread executor. My VPS only has two CPUs which means the FJP that virtual threads run on only have 2 active threads at a time. I ran into this hang when some of the connection hung, blocking any further requests from being processed.
I personally ran into this Using the built in com.sun webserver, with a virtual thread executor. My VPS only has two CPUs which means the FJP that virtual threads run on only have 2 active threads at a time. I ran into this hang when some of the connection hung, blocking any further requests from being processed.