--- /dev/null	2019-12-03 13:30:45.000000000 -0500
+++ new/src/jdk.incubator.jpackage/macosx/classes/jdk/incubator/jpackage/internal/EnumeratedBundlerParam.java	2019-12-03 13:30:43.430720700 -0500
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.incubator.jpackage.internal;
+
+import java.util.*;
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
+/**
+ * EnumeratedBundlerParams<T>
+ *
+ * Contains key-value pairs (elements) where keys are "displayable"
+ * keys which the IDE can display/choose and values are "identifier" values
+ * which can be stored in parameters' map.
+ *
+ * For instance the Mac has a predefined set of categories which can be applied
+ * to LSApplicationCategoryType which is required for the mac app store.
+ *
+ * The following example illustrates a simple usage of
+ *     the MAC_CATEGORY parameter:
+ *
+ * <pre>{@code
+ *     Set<String> keys = MAC_CATEGORY.getDisplayableKeys();
+ *
+ *     String key = getLastValue(keys); // get last value for example
+ *
+ *     String value = MAC_CATEGORY.getValueForDisplayableKey(key);
+ *     params.put(MAC_CATEGORY.getID(), value);
+ * }</pre>
+ *
+ */
+class EnumeratedBundlerParam<T> extends BundlerParamInfo<T> {
+    // Not sure if this is the correct order, my idea is that from IDE
+    // perspective the string to display to the user is the key and then the
+    // value is some type of object (although probably a String in most cases)
+    private final Map<String, T> elements;
+    private final boolean strict;
+
+    EnumeratedBundlerParam(String id, Class<T> valueType,
+            Function<Map<String, ? super Object>, T> defaultValueFunction,
+            BiFunction<String, Map<String, ? super Object>, T> stringConverter,
+            Map<String, T> elements, boolean strict) {
+        this.id = id;
+        this.valueType = valueType;
+        this.defaultValueFunction = defaultValueFunction;
+        this.stringConverter = stringConverter;
+        this.elements = elements;
+        this.strict = strict;
+    }
+
+    boolean isInPossibleValues(T value) {
+        return elements.values().contains(value);
+    }
+
+    // Having the displayable values as the keys seems a bit wacky
+    Set<String> getDisplayableKeys() {
+        return Collections.unmodifiableSet(elements.keySet());
+    }
+
+    // mapping from a "displayable" key to an "identifier" value.
+    T getValueForDisplayableKey(String displayableKey) {
+        return elements.get(displayableKey);
+    }
+
+    boolean isStrict() {
+        return strict;
+    }
+
+    boolean isLoose() {
+        return !isStrict();
+    }
+
+}