Webrev at: http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8069551/webrev.00 java.security.acl is superceded by java.security package since 1.2. This patch proposes to move java.security.acl package to java.base module rather than complicating the module graph with a close-to-useless dedicated module. Mandy