[android-developers] Lifetime of static [instance] variables

hello,

for quite some time i was blissfully of the opinion that static
[instance] variables exist as long as the app runs. however, to my
dismay, and much alarm, i feel that it's not true.

for mere testing, i created a static list of strings, and in my main
activity class overrode the onDestroy method to print a message to
verify that the app exited. in the onCreate method i simply added a
new string, and printed the contents of the list. what i've found is
that the size of the list keeps on increasing, and all the string
values added previously are still present.

is there some cardinal mistake in what i assumed should be the
behaviour of instance variables, or is there something that i should
keep in mind when dealing with instance variables?

what gives?

thanks for your time and help.

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