#1403 False positive UnusedPrivateMethod with JAVA8

[Rei Angelus]

There is a false positive UnusedPrivateMethod with this kind of code :

:::java
public class Something {
    @Test public void mapMergeShouldReturnTheUnionWhenGivenDifferentSetsWithSomeCommonValues() {
        final Map<String, Purse> actual
                = Combiners.mapMerge(mapOf(annPurse5, bobPurse7), mapOf(bobPurse9, calPurse10), ADDITION);
        assertEquals(mapOf(annPurse5, bobPurse16, calPurse10), actual);
    }

    private static Map<String, Purse> mapOf(final Purse... values) {
        return mapOf(Purse::getOwner, values);
    }

    private static <K, V> Map<K, V> mapOf(final Function<V, K> keyMapper, final V... values) {
        return Stream.of(values).collect(Collectors.toMap(keyMapper, Function.identity()));
    }
}

Maybe because of Java 8 "mapOf(Purse::getOwner, values)" or private called by private ?

Thanks,

[Andreas Dangel]

This will be fixed with PMD 5.3.4.

Commit: https://github.com/pmd/pmd/commit/2500412b147a31cef5940aba9ca0b504dd39003f