### Question:
GitMlRules { static Map<String, List<String>> stripDuplicatePrefixes(Map<String, List<String>> fullList) { var trie = mapToTrie(fullList); var pruned = pruneEntry(trie); return trieToMap(pruned, ""); }  static void main(String[] args);  }### Answer:
@Test void collapseEquals() { assertEquals(Map.of("", List.of("v1")), GitMlRules.stripDuplicatePrefixes(Map.of("k1", List.of("v1")))); }
@Test void collapseSameList() { assertEquals(Map.of("", List.of("v1")), GitMlRules.stripDuplicatePrefixes(Map.of("k1a", List.of("v1"), "k1b", List.of("v1")))); }
@Test void collapseDifferentList() { assertEquals(Map.of("k1a", List.of("v1"), "k1b", List.of("v2")), GitMlRules.stripDuplicatePrefixes(Map.of("k1a", List.of("v1"), "k1b", List.of("v2")))); }
@Test void collapseMultiple() { assertEquals(Map.of("", List.of("v1")), GitMlRules.stripDuplicatePrefixes(Map.of("k1a", List.of("v1"), "k1b", List.of("v1"), "k2bb", List.of("v1")))); }
@Test void collapseMultiple2() { assertEquals(Map.of("", List.of("v1")), GitMlRules.stripDuplicatePrefixes(Map.of("k1a", List.of("v1"), "k1b", List.of("v1"), "k2bb", List.of("v1"), "k4", List.of("v1")))); }
@Test void collapseSingle() { assertEquals(Map.of("k1/a", List.of("v1"), "k1/b", List.of("v2")), GitMlRules.stripDuplicatePrefixes(Map.of("k1/a/a", List.of("v1"), "k1/b/b", List.of("v2")))); }
@Test void collapseSingle2() { assertEquals(Map.of("k/1", List.of("v1"), "k/2a", List.of("v2")), GitMlRules.stripDuplicatePrefixes(Map.of("k/1/aa", List.of("v1"), "k/1/bb", List.of("v1"), "k/2a", List.of("v2")))); }