Minor post-merge cleanup wrt #3053

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/databind/cfg/EnumFeature.java

@@ -29,7 +29,12 @@ public enum EnumFeature implements DatatypeFeature
      * Enum values: if enabled, return value of <code>Enum.name().toLowerCase()</code>
      * is used; if disabled, return value of <code>Enum.name()</code> is used.
      *<p>
+     * NOTE: this feature CAN NOT be changed on per-call basis: it will have to
+     * be set on {@code ObjectMapper} before use
+     *<p>
      * Feature is disabled by default.
+     *
+     * @since 2.15
      */
     WRITE_ENUMS_TO_LOWERCASE(false);
 

src/test/java/com/fasterxml/jackson/databind/ser/jdk/EnumSerializationTest.java

@@ -332,6 +332,7 @@ public void testEnumWithJsonKey() throws Exception
         assertEquals(a2q("{'key:a':'value:b'}"), MAPPER.writeValueAsString(input2));
     }
 
+    // [databind#3053]
     public void testEnumFeature_WRITE_ENUMS_TO_LOWERCASE_isDisabledByDefault() {
         ObjectReader READER = MAPPER.reader();
         assertFalse(READER.isEnabled(EnumFeature.WRITE_ENUMS_TO_LOWERCASE));
@@ -343,12 +344,8 @@ public void testEnumFeature_WRITE_ENUMS_TO_LOWERCASE() throws Exception {
         ObjectMapper m = jsonMapperBuilder()
             .configure(EnumFeature.WRITE_ENUMS_TO_LOWERCASE, true)
             .build();
-        assertEquals("\"b\"", m.writeValueAsString(TestEnum.B));
-
-        // [databind#749] but should also be able to dynamically disable
-        assertEquals("\"B\"",
-            m.writer().without(EnumFeature.WRITE_ENUMS_TO_LOWERCASE)
-                .writeValueAsString(LowerCaseEnum.B));
+        assertEquals(q("b"), m.writeValueAsString(TestEnum.B));
+        // NOTE: cannot be dynamically changed
     }
 }
 

src/test/java/com/fasterxml/jackson/databind/util/EnumValuesTest.java

@@ -66,6 +66,7 @@ public void testEnumResolver()
         assertEquals(ABC.C, enums.get(2));
     }
 
+    // [databind#3053]
     @SuppressWarnings("unchecked")
     public void testConstructFromNameLowerCased() {
         SerializationConfig cfg = MAPPER.getSerializationConfig()