I'm not seeing graceful shutdown behaviour when I cf stop a Java app. By the looks of Garden SIGTERM is sent and if the process is still alive after 10 seconds SIGKILL is sent: https://github.com/cloudfoundry-incubator/garden-linux/blob/8ab2cbf0696fd0b6bd1a0f15f2d3a463e4acbdac/linux_backend/skeleton/stop.sh#L54-L72

I don't see this in my dead simple app Spring Boot app however: https://github.com/william-tran/cf-shutdown-hook. When I SIGTERM locally it only takes a second to gracefully shutdown.

I'm seeing this on PCF 1.6.8-build.1 (cf 225.3, garden 0.330.0)