--- old/src/java.base/share/classes/jdk/internal/misc/JavaLangAccess.java	2017-02-07 13:13:41.496798469 +0000
+++ new/src/java.base/share/classes/jdk/internal/misc/JavaLangAccess.java	2017-02-07 13:13:41.330787068 +0000
@@ -174,4 +174,9 @@
      * Invokes Long.fastUUID
      */
     String fastUUID(long lsb, long msb);
+
+    /**
+     * Invalidate package access cache
+     */
+    void invalidatePackageAccessCache();
 }