RE: [jetty-discuss] Fundamental question on how things work

[Shapira, Y. <Yoa...@mp...>]

Howdy,

>It seems simple enough except for one thing. The last line returns
right
>away. Afterwards, the variable "server" goes out of context and is
>available to be gc'ed.

Your reference to the server can be GCed.  If other threads are holdin=
g
references to it, than the server will not be GCed.

>After that, "main" ends and so should this program.
>However, in reality the server is working just fine. What's going on?=
 I
>understand that the server may be spinning off other threads, etc, bu=
t
once
>a program terminates, that's the end. Sorry if this is a stupid
question,
>but I've never seen anything done like this before (maybe something
>peculiar to Java??).

The JVM will keep running as long as non-daemon threads are running.  =
If
I had to guess, I'd say you're creating a non-daemon thread to run the=

server.  So that when the main thread exits, the server thread and
therefore the JVM stays running.  The JavaDoc for java.lang.Thread
explains more.

Yoav Shapira



This e-mail, including any attachments, is a confidential business com=
munication, and may contain information that is confidential, propriet=
ary and/or privileged.  This e-mail is intended only for the individua=
l(s) to whom it is addressed, and may not be saved, copied, printed, d=
isclosed or used by anyone else.  If you are not the(an) intended reci=
pient, please immediately delete this e-mail from your computer system=
 and notify the sender.  Thank you.