While the reasoning, using the specified translation from the enhanced for loop to the traditional for loop, used by other answers is correct, there is an explicit specification about the scopes:

§6.3. Scope of a Declaration

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The scope of a local variable declared in the FormalParameter part of an enhanced for statement (§14.14.2) is the contained Statement.

(direct link)

Thus, the scope of the variable does not include the Expression of the enhanced for loop…

You can verify that this hasn’t changed, compared to Java 7 and Java 6, though both (I tried Java 6 javac) exhibit the contradicting behavior.

So this change in the compiler behavior is the fix of an old bug…