Update package whitelist to track changes to java.lang.invoke.

The introduction of java.lang.invoke.MethodType and its supporting
classes, in particular.

bug: 30550796
test: make checkbuild

Change-Id: Id2b84d3bb911f4bc5aef0761d357b1e9121030ab
diff --git a/core/tasks/check_boot_jars/package_whitelist.txt b/core/tasks/check_boot_jars/package_whitelist.txt
index daf13fe..601017b 100644
--- a/core/tasks/check_boot_jars/package_whitelist.txt
+++ b/core/tasks/check_boot_jars/package_whitelist.txt
@@ -67,6 +67,8 @@
 org\.w3c\.dom\.ls
 org\.w3c\.dom\.traversal
 # OpenJdk internal implementation.
+sun\.invoke\.util
+sun\.invoke\.empty
 sun\.misc
 sun\.util.*
 sun\.text.*