Fix #2980 test (test was faulty, behavior not :) )

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/databind/deser/BasicDeserializerFactory.java

@@ -851,7 +851,8 @@ protected void _addExplicitDelegatingCreator(DeserializationContext ctxt,
     }
 
     /**
-     * Helper method called when there is the explicit "is-creator" with mode of "properties-based"
+     * Helper method called when there is the explicit "is-creator" annotation with mode
+     * of "properties-based"
      *
      * @since 2.9.2
      */
@@ -1072,7 +1073,6 @@ private void _checkImplicitlyNamedConstructors(DeserializationContext ctxt,
         }
     }
 
-
     protected boolean _handleSingleArgumentCreator(CreatorCollector creators,
             AnnotatedWithParams ctor, boolean isCreator, boolean isVisible)
     {

src/test-jdk14/java/com/fasterxml/jackson/databind/RecordCreatorsTest.java

@@ -22,7 +22,7 @@ public RecordWithAltCtor(@JsonProperty("id") int id) {
 
     // [databind#2980]
     record RecordWithDelegation(String value) {
-        @JsonCreator(mode = JsonCreator.Mode.PROPERTIES)
+        @JsonCreator(mode = JsonCreator.Mode.DELEGATING)
         public RecordWithDelegation(String value) {
             this.value = "del:"+value;
         }
@@ -31,6 +31,8 @@ public RecordWithDelegation(String value) {
         public String getValue() {
             return "val:"+value;
         }
+
+        public String accessValueForTest() { return value; }
     }
 
     private final ObjectMapper MAPPER = newJsonMapper();
@@ -59,7 +61,7 @@ public void testDeserializeWithAltCtor() throws Exception {
     public void testDeserializeWithDelegatingCtor() throws Exception {
         RecordWithDelegation value = MAPPER.readValue(q("foobar"),
                 RecordWithDelegation.class);
-        assertEquals("del:foobar", value.getValue());
+        assertEquals("del:foobar", value.accessValueForTest());
 
         assertEquals(q("val:del:foobar"), MAPPER.writeValueAsString(value));
     }