public static LongUnaryOperator longUnaryOperator(CheckedLongUnaryOperator operator) {
        return longUnaryOperator(operator, THROWABLE_TO_RUNTIME_EXCEPTION);
    }
Wrap a {@link CheckedLongUnaryOperator} in a {@link LongUnaryOperator}.
<p>
Example:
<pre><code>
LongStream.of(1L, 2L, 3L).map(Unchecked.longUnaryOperator(l -> {
    if (l &lt; 0L)
        throw new Exception("Only positive numbers allowed");

    return l;
}));
</code></pre>
jOOL-java-8/src/main/java/org/jooq/lambda/Unchecked.java