Resolve all persistent entities for a persistent property.

Original pull request: #2394.
Closes #2390.

src/main/java/org/springframework/data/util/TypeInformation.java

@@ -274,6 +274,11 @@ public interface TypeInformation<S> {
 		return !type.equals(getType()) && type.isAssignableFrom(getType());
 	}
 
+	/**
+	 * Returns whether the current type is considered a {@literal null} value wrapper or not.
+	 *
+	 * @return {@literal true} if the type is considered to be a {@literal null} value wrapper such as {@link java.util.Optional}.
+	 */
 	default boolean isNullableWrapper() {
 		return NullableWrapperConverters.supports(getType());
 	}