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Comment by cosarara | Hacker News Reader

How does the order of evaluation work in the second form there? Will fallbackIfNullMethodCall() be evaluated even if not returned?

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It can be done this way:

  result = Optional.ofNullable(nullableVariable)
                   .map(NullableType::someMethodCall)
                   .orElseGet(() -> fallbackIfNullMethodCall());

This was what I intended to write. Sorry, the HN input box isn't my usual IDE :)

or even:

  result = Optional.ofNullable(nullableVariable)
                 .map(NullableType::someMethodCall)
                 .orElseGet(this::fallbackIfNullMethodCall);

Makes sense, thanks.

My code contains a bug, the code driver733 wrote is what I intended to write (usually I use predefined variables for orElse, conditionally taking the method call threw me of guard).

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