### Question:
JacksonUtils { public static Object toObject(JsonNode jsonNode) { return toObject(jsonNode, null); } private  JacksonUtils(); static JsonNode toJsonNode(Object datum); static Object toObject(JsonNode jsonNode); static Object toObject(JsonNode jsonNode, Schema schema); static Map objectToMap(Object datum);  }### Answer:
@Test public void testToObject() { assertEquals(null, toObject(null)); assertEquals(JsonProperties.NULL_VALUE, toObject(NullNode.getInstance())); assertEquals(true, toObject(BooleanNode.TRUE)); assertEquals(1, toObject(IntNode.valueOf(1))); assertEquals(2L, toObject(IntNode.valueOf(2), Schema.create(Schema.Type.LONG))); assertEquals(1.0f, toObject(DoubleNode.valueOf(1.0), Schema.create(Schema.Type.FLOAT))); assertEquals(2.0, toObject(DoubleNode.valueOf(2.0))); assertEquals(TextNode.valueOf("\u0001\u0002"), toJsonNode(new byte[] { 1, 2 })); assertArrayEquals(new byte[] { 1, 2 }, (byte[]) toObject(TextNode.valueOf("\u0001\u0002"), Schema.create(Schema.Type.BYTES))); assertEquals("a", toObject(TextNode.valueOf("a"))); assertEquals("UP", toObject(TextNode.valueOf("UP"), SchemaBuilder.enumeration("Direction").symbols("UP", "DOWN"))); ArrayNode an = JsonNodeFactory.instance.arrayNode(); an.add(1); assertEquals(Collections.singletonList(1), toObject(an)); ObjectNode on = JsonNodeFactory.instance.objectNode(); on.put("a", 1); assertEquals(Collections.singletonMap("a", 1), toObject(on)); assertEquals(Collections.singletonMap("a", 1L), toObject(on, SchemaBuilder.record("r").fields().requiredLong("a").endRecord())); assertEquals(JsonProperties.NULL_VALUE, toObject(NullNode.getInstance(), SchemaBuilder.unionOf().nullType().and().intType().endUnion())); assertEquals("a", toObject(TextNode.valueOf("a"), SchemaBuilder.unionOf().stringType().and().intType().endUnion())); }