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Allow to configure Java null handling.

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Robert Lichtenberger
2025-03-19 07:59:57 +01:00
parent 6452a6f38d
commit d1327c2da3
3 changed files with 72 additions and 1 deletions
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40
src/test/java/org/json/junit/JSONObjectTest.java
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@@ -616,6 +616,46 @@ public class JSONObjectTest {
assertTrue("expected \"doubleKey\":-23.45e67", Double.valueOf("-23.45e67").equals(jsonObject.query("/doubleKey")));
Util.checkJSONObjectMaps(jsonObject);
}
@Test
public void jsonObjectByMapWithNullValueAndParserConfiguration() {
Map<String, Object> map = new HashMap<String, Object>();
map.put("nullKey", null);
// by default, null values are ignored
JSONObject obj1 = new JSONObject(map);
assertTrue("expected null value to be ignored by default", obj1.isEmpty());
// if configured, null values are written as such into the JSONObject.
JSONParserConfiguration parserConfiguration = new JSONParserConfiguration().withJavaNullAsJsonNull(true);
JSONObject obj2 = new JSONObject(map, parserConfiguration);
assertFalse("expected null value to accepted when configured", obj2.isEmpty());
assertTrue(obj2.has("nullKey"));
assertEquals(JSONObject.NULL, obj2.get("nullKey"));
}
@Test
public void jsonObjectByMapWithNestedNullValueAndParserConfiguration() {
Map<String, Object> map = new HashMap<String, Object>();
Map<String, Object> nestedMap = new HashMap<String, Object>();
nestedMap.put("nullKey", null);
map.put("nestedMap", nestedMap);
List<Map<String, Object>> nestedList = new ArrayList<Map<String,Object>>();
nestedList.add(nestedMap);
map.put("nestedList", nestedList);
JSONParserConfiguration parserConfiguration = new JSONParserConfiguration().withJavaNullAsJsonNull(true);
JSONObject jsonObject = new JSONObject(map, parserConfiguration);
JSONObject nestedObject = jsonObject.getJSONObject("nestedMap");
assertTrue(nestedObject.has("nullKey"));
assertEquals(JSONObject.NULL, nestedObject.get("nullKey"));
JSONArray nestedArray = jsonObject.getJSONArray("nestedList");
assertEquals(1, nestedArray.length());
assertTrue(nestedArray.getJSONObject(0).has("nullKey"));
assertEquals(JSONObject.NULL, nestedArray.getJSONObject(0).get("nullKey"));
}
/**
* JSONObject built from a bean. In this case all but one of the