unreachable-statement

Why does a Java Compiler not produce an unreachable statement error for an unreachable then statement?

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The behaviour is defined in the JLS description of unreachable statements: The then-statement is reachable iff the if-then statement is reachable. So the compiler determines that the then-statement (break;) is reachable, regardless of the condition in the if. And a bit further, emphasis mine: A basic for statement can complete normally iff at least one … Read more

Why does Java have an “unreachable statement” compiler error?

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Because unreachable code is meaningless to the compiler. Whilst making code meaningful to people is both paramount and harder than making it meaningful to a compiler, the compiler is the essential consumer of code. The designers of Java take the viewpoint that code that is not meaningful to the compiler is an error. Their stance … Read more

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