LICENSE_URL for the JavaDoc API Specification should be updated to reference the version-specific licence as follows:

diff -r 3acb379b8672 make/Docs.gmk
--- a/make/Docs.gmk Thu Mar 22 08:09:51 2018 +0800
+++ b/make/Docs.gmk Thu Mar 29 14:08:01 2018 -0700
@@ -64,7 +64,7 @@
 JAVADOC_BASE_URL := http://www.oracle.com/pls/topic/lookup?ctx=javase10&id=homepage
 BUG_SUBMIT_URL := http://bugreport.java.com/bugreport/
 COPYRIGHT_URL := {@docroot}/../legal/copyright.html
-LICENSE_URL := http://www.oracle.com/technetwork/java/javase/terms/license/java10speclicense.html
+LICENSE_URL := http://www.oracle.com/technetwork/java/javase/terms/license/java$(VERSION_NUMBER)speclicense.html
 REDISTRIBUTION_URL := http://www.oracle.com/technetwork/java/redist-137594.html

 # In order to get a specific ordering it's necessary to specify the total