Method entrySet

core/src/test/java/org/apache/calcite/util/UtilTest.java:2217–2219

()

  @Test void testMightBeAssignableFrom() {
    final Object myMap = new HashMap<String, Integer>() {
      @Override public Set<Entry<String, Integer>> entrySet() {
        throw new UnsupportedOperationException();
      }
      @Override public Integer put(String key, Integer value) {
        throw new UnsupportedOperationException();
      }