sebbASF commented on code in PR #665:
URL:
https://github.com/apache/commons-collections/pull/665#discussion_r2619586276
##########
src/main/java/org/apache/commons/collections4/MultiMapUtils.java:
##########
@@ -170,6 +171,27 @@ public static boolean isEmpty(final MultiValuedMap<?, ?>
map) {
return map == null || map.isEmpty();
}
+ /**
+ * A utility method to invert the mappings from a source MultiValuedMap
+ * to a collector MultiValuedMap. If you are trying to create an
+ * inverse multimap of the same kind as the original, consider using
+ * {@link MultiValuedMap#inverted()}.
+ *
Review Comment:
The Javadoc is not entirely clear that the inverted mappings are added to
the collector, rather than replacing whatever was there originally. I think it
can be read either way.
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