File: Marks4.java

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checker-framework-java 3.0.1%2Bds2-3
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import java.util.Optional;

/**
 * Test case for rule #4: "It's generally a bad idea to create an Optional for the specific purpose
 * of chaining from it to get a value."
 */
public class Marks4 {

    String getDefault() {
        return "Fozzy Bear";
    }

    String process_bad(String s) {
        // :: warning: (introduce.eliminate)
        return Optional.ofNullable(s).orElseGet(this::getDefault);
    }

    String process_good(String s) {
        return (s != null) ? s : getDefault();
    }
}