spring - release db connections in standalone application -

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i working on standalone application using spring/jpa , trying release database resources used.

in web application using tomcat example, shutdown server, , way, let tomcat manage resources.

but in standalone app, have take care this, use runtime.getruntime().addshutdownhook "catch" shutdown event , call ((classpathxmlapplicationcontext) context).close();, this:

runtime.getruntime().addshutdownhook(new thread() {     @override     public void run() {         ((classpathxmlapplicationcontext) context).close();     }

it works exception in stacktrace if thread using connection. wondering if there option? maybe getting list of open transactions , force them rollback?

i believe need implement this , inside destroy method, retrieve datasource , call close method or similar. i'm assuming have few things when shutdown application.

i can't quite right method name don't know using datasource.


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