Is there any performance reason to declare method parameters final in Java? -

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is there performance reason declare method parameters final in java?

as in:

public void foo(int bar) { ... }

versus:

public void foo(final int bar) { ... }

assuming bar read , never modified in foo().

the final keyword not appear in class file local variables , parameters, cannot impact runtime performance. it's use clarify coders intent variable not changed (which many consider dubious reason usage), , dealing anonymous inner classes.

there lot of argument on whether final modifier on method has performance gain since methods inlined optimizing compiler @ runtime anyway, regardless of modifier. in case should used restrict overriding of method.


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