354734 Update jackson to 2.16, adapt Java Optional handling to change

Jackson adapted handling for Optional serialization providing a custom
exception message if Optional is being serialized. Scout does not
support serialization of Java Optional, therefore adapt test case.

See
FasterXML/jackson-databind#4082
FasterXML/jackson-databind@d7e77c3

Author: paolobazzi

org.eclipse.scout.rt.jackson.test/src/test/java/org/eclipse/scout/rt/jackson/dataobject/JsonDataObjectsSerializationTest.java

@@ -3141,27 +3141,28 @@ public void testSerializeDeserializeThrowable() throws Exception {
     assertArrayEquals(exception.getStackTrace(), marshalled.getException().getStackTrace());
   }
 
+  /**
+   * {@link Optional} is currently not serializable/deserializable using Scout Jackson implementation.
+   */
   @Test
   public void testSerializeDeserializeOptionalDo() throws Exception {
     @SuppressWarnings("unchecked")
     TestOptionalDo optional = BEANS.get(TestOptionalDo.class)
-        .withOptString(Optional.ofNullable(null))
-        .withOptStringList(Optional.empty(), Optional.ofNullable("foo"));
-    String json = s_dataObjectMapper.writeValueAsString(optional);
-
-    // currently serializable using Scout Jackson implementation, but without values, e.g. useless!
-    assertJsonEquals("TestOptionalDo.json", json);
-
-    // currently not deserializable using Scout Jackson implementation
+        .withOptString(Optional.empty())
+        .withOptStringList(Optional.empty(), Optional.of("foo"));
+
+    // Expect:
+    // com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Java 8 optional type `java.util.Optional<java.lang.String>`
+    // not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-jdk8" to enable handling
+    JsonMappingException writeException = assertThrows(JsonMappingException.class, () -> s_dataObjectMapper.writeValueAsString(optional));
+    assertTrue("expected InvalidDefinitionException, got " + writeException, writeException instanceof InvalidDefinitionException);
+
+    // Expect:
+    // com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Java 8 optional type `java.util.Optional<java.lang.String>`
+    // not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-jdk8" to enable handling
+    String json = readResourceAsString("TestOptionalDo.json");
     JsonMappingException exception = assertThrows(JsonMappingException.class, () -> s_dataObjectMapper.readValue(json, TestOptionalDo.class));
-
-    // TODO [23.1] pbz remove when JDK 11 is no longer supported
-    if ("11".equals(System.getProperty("java.specification.version"))) {
-      assertTrue("expected cause UnrecognizedPropertyException, got " + exception.getCause(), exception.getCause() instanceof UnrecognizedPropertyException);
-    }
-    else {
-      assertTrue("expected cause InvalidDefinitionException, got " + exception.getCause(), exception.getCause() instanceof InvalidDefinitionException);
-    }
+    assertTrue("expected InvalidDefinitionException, got " + exception.getCause(), exception.getCause() instanceof InvalidDefinitionException);
   }
 
   @Test