--- /dev/null	2019-11-20 10:46:45.000000000 -0500
+++ new/src/jdk.incubator.jpackage/linux/classes/jdk/incubator/jpackage/internal/PackageProperty.java	2019-11-20 10:46:42.786792100 -0500
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 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.text.MessageFormat;
+
+final class PackageProperty {
+    /**
+     * Constructor
+     *
+     * @param name property name
+     * @param expectedValue expected property value
+     * @param substString substitution string to be placed in resource file to
+     * be replaced with the expected property value by jpackage at package build
+     * time
+     * @param customResource name of custom resource from resource directory in
+     * which this package property can be set
+     */
+    PackageProperty(String name, String expectedValue, String substString,
+            String customResource) {
+        this.name = name;
+        this.expectedValue = expectedValue;
+        this.substString = substString;
+        this.customResource = customResource;
+    }
+    
+    ConfigException verifyValue(String actualValue) {
+        if (expectedValue.equals(actualValue)) {
+            return null;
+        }
+        
+        final String advice;
+        if (substString != null) {
+            advice = MessageFormat.format(I18N.getString(
+                    "error.unexpected-package-property.advice"), substString,
+                    actualValue, name, customResource);
+        } else {
+            advice = MessageFormat.format(I18N.getString(
+                    "error.unexpected-default-package-property.advice"), name,
+                    customResource);
+        }
+        
+        return new ConfigException(MessageFormat.format(I18N.getString(
+                "error.unexpected-package-property"), name,
+                expectedValue, actualValue, customResource, substString), advice);
+    }
+
+    final String name;
+    private final String expectedValue;
+    private final String substString;
+    private final String customResource;
+}