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// Test case for Issue 596:
// https://github.com/typetools/checker-framework/issues/596
import java.util.concurrent.atomic.AtomicReference;
import org.checkerframework.checker.nullness.qual.*;
class Issue596 {
private static String getOrEmpty(AtomicReference<String> ref) {
return Optional596.fromNullable(ref.get()).or("");
}
}
// From Google Guava
class Optional596<T> {
public static <T> Optional596<T> fromNullable(@Nullable T nullableReference) {
return new Optional596<T>();
}
public T or(T defaultValue) {
return defaultValue;
}
}
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