--- old/modules/jdk.packager/src/main/java/com/oracle/tools/packager/UnsupportedPlatformException.java	2017-12-07 16:43:30.000000000 -0800
+++ new/modules/jdk.packager/src/main/java/com/oracle/tools/packager/UnsupportedPlatformException.java	2017-12-07 16:43:30.000000000 -0800
@@ -25,4 +25,8 @@
 
 package com.oracle.tools.packager;
 
+/**
+ * @deprecated use {@link ToolProvider} to locate the {@code "javapackager"} tool instead.
+ */
+@Deprecated(since="10", forRemoval=true)
 public class UnsupportedPlatformException extends Exception {}