fixes for code review

Signed-off-by: Attila Mészáros <a_meszaros@apple.com>

Author: csviri

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/api/reconciler/ResourceOperations.java

@@ -1393,7 +1393,7 @@ public boolean requiresMatcher() {
    * Options#forceFilterEvents()}), which is why each constant links to its corresponding factory.
    */
   @Experimental(API_MIGHT_CHANGE)
-  enum Mode {
+  public enum Mode {
     /** See {@link Options#filterWithOptimisticLocking()}. */
     FILTER_WITH_OPTIMISTIC_LOCKING,
     /** See {@link Options#matchAndFilter(Matcher)}. */