fix [,null] generation in Json Tiny

datastructures-json-tiny/src/main/java/org/xbib/datastructures/json/tiny/JsonBuilder.java

@@ -122,7 +122,7 @@ public class JsonBuilder implements Builder {
             beginArrayValue();
         }
         switch (object) {
-            case null -> buildNull();
+            case null -> buildString("null", false);
             case CharSequence charSequence -> buildString(charSequence, true);
             case Boolean b -> buildBoolean(b);
             case Byte b -> buildNumber(b);

datastructures-json-tiny/src/test/java/org/xbib/datastructures/json/tiny/test/BuilderTest.java

@@ -288,4 +288,18 @@ public class BuilderTest {
                 .endMap();
         assertEquals("{\"test\":{\"instant\":\"" + instant + "\",\"localdatetime\":\"" + instant + "\"}}", builder.build());
     }
+
+    @Test
+    public void testCollectionWithNullValue() throws Exception {
+        JsonBuilder builder = JsonBuilder.builder();
+        builder.beginCollection();
+        builder.buildNull();
+        builder.endCollection();
+        assertEquals("[null]", builder.build());
+        builder = JsonBuilder.builder();
+        builder.beginCollection();
+        builder.buildValue(null);
+        builder.endCollection();
+        assertEquals("[null]", builder.build());
+    }
 }

datastructures-json-tiny/src/test/java/org/xbib/datastructures/json/tiny/test/ParserTest.java

@@ -60,5 +60,4 @@ public class ParserTest {
             logger.log(Level.INFO, "value class " + e.getValue().getClass().getName());
         }
     }
-
 }

gradle.properties

@@ -1,3 +1,3 @@
 group = org.xbib
 name = datastructures
-version = 5.2.1
+version = 5.2.2

settings.gradle

@@ -23,7 +23,7 @@ dependencyResolutionManagement {
         }
         testLibs {
             version('junit', '5.10.2')
-            version('jackson', '2.17.1')
+            version('jackson', '2.17.3')
             library('junit-jupiter-api', 'org.junit.jupiter', 'junit-jupiter-api').versionRef('junit')
             library('junit-jupiter-params', 'org.junit.jupiter', 'junit-jupiter-params').versionRef('junit')
             library('junit-jupiter-engine', 'org.junit.jupiter', 'junit-jupiter-engine').versionRef('junit')