Aside: if all you want to do is make a use of HashMap more reproducible, the standard reaction is s/HashMap/LinkedHashMap/g
On Tue, Mar 10, 2020 at 12:53 AM Alan Bateman <alan.bate...@oracle.com> wrote: > On 10/03/2020 02:54, Yangfei (Felix) wrote: > > Hi, > > > > We found module-info.class in java.base.jmod is not always consistent > across different builds. > > The ModuleHashes attribute in this module-info.class is not > reproducible between builds. > > Patch fixes the issue by using TreeMap instead of HashMap when > computing ModuleHashes. > > > > Bug: https://bugs.openjdk.java.net/browse/JDK-8240734 > > Webrev: http://cr.openjdk.java.net/~fyang/8240734/webrev.00/ > > > This looks okay (and to Bernd question, this is used at link time). I > think we need to extend the test coverage for reproducible builds, the > existing JLinkReproducibleTest.java would ideally have caught the > difference due to the random ordering of hashes. > > -Alan. > >