@Test
    public void shouldFailToParseStringOfMapWithIntValuesWithOnlyBlankEntries() {
        assertThrows(DataException.class, () -> Values.convertToMap(Schema.STRING_SCHEMA, " { ,,  , , }  "));
    }
This is technically invalid JSON, and we don't want to simply ignore the blank entries.
connect/api/src/test/java/org/apache/kafka/connect/data/ValuesTest.java