> For the record, here is a very simple java test program that I sent to Troy when > we discussed this problem last November. This program simply intercepts CTL-C > and runs a shutdown hook prior to shutting down the Java VM. It works fine under > cmd.exe and cygwin ash, but does not work under cygwin bash.
In my test case (myclass.java) I also added a shutdown hook but this app is spawned as a child process from signals.exe with the CREATE_PROCESS_GROUP flag enabled. This causes the Win32 kernel to call SetConsoleCtrlHandler on behalf of the CreateProcess call and disable the CTRL-C handler (See the MSDN entry for CreateProcess). Therefore child apps can only be killed by sending a CTRL-BREAK event. The effect on this is that the VM does not call the shutdown hooks (And you have to call java with the -Xrs parameter otherwise you will see just a thread dump of your child process).... So I see your problem. We are currently not using any Shutdown hooks in our Java services, but I suspect that we might be in the future and then we will run into the same troubles you are facing today... So I'm definitely interested in a solution of your problem as well.... Michael -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
