UserStorage: support int in setExpiration() (3.1) #72
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It is simply not possible to change signatures for interface methods because of backward compatibility. |
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Why? The type is widened, not narrowed, so it is backward compatible. Or do I overlook something? |
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Only final implementations can safely widen accepted types. Doing so in extendable methods and interfaces is BC break, because implementations have to do it too. |
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Oh, I see, thanks for explanation.. So I'm closing this and leaving only #71 |
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backport of #71 to v3.1