faux@codd:/var/tmp/faux110915.3% cat T.java
class T {
        private final void a() {
        }
}
faux@codd:/var/tmp/faux110915.3% javac T.java
faux@codd:/var/tmp/faux110915.3% sha1sum T.class
115cd82209481d8237f5d41b73a778602f7e8de6  T.class
faux@codd:/var/tmp/faux110915.3% sed -i s/final// T.java
faux@codd:/var/tmp/faux110915.3% javac T.java
faux@codd:/var/tmp/faux110915.3% sha1sum T.class
1f88d1d9bd7773df6c307b27c621e4c4764b20bd  T.class
faux@codd:/var/tmp/faux110915.3%