@Test public void testUnknown() { Boolean result = converter.convert("Unknown"); Assert.assertNull(result); }
public Boolean convert(String value) { return value == null ? null : BOOLEAN_MAP.get(value); }
YesNoUnknownConverter { public Boolean convert(String value) { return value == null ? null : BOOLEAN_MAP.get(value); } }
YesNoUnknownConverter { public Boolean convert(String value) { return value == null ? null : BOOLEAN_MAP.get(value); }  }
YesNoUnknownConverter { public Boolean convert(String value) { return value == null ? null : BOOLEAN_MAP.get(value); }  Boolean convert(String value); }
YesNoUnknownConverter { public Boolean convert(String value) { return value == null ? null : BOOLEAN_MAP.get(value); }  Boolean convert(String value);  }