assertNotNull(jsonSchema.toString());
assertNotNull(JsonSchema.getDefaultSchemaNode());
ObjectNode root = jsonSchema.getSchemaNode();
assertEquals("object", root.get("type").asText());
assertEquals(false, root.path("required").booleanValue());
JsonNode propertiesSchema = root.get("properties");
assertNotNull(propertiesSchema);
JsonNode property1Schema = propertiesSchema.get("property1");
assertNotNull(property1Schema);
assertEquals("integer", property1Schema.get("type").asText());