On 05/02/2019 20:19, Makarius wrote: > On 05.02.19 11:43, Peter Lammich wrote: >> >> Is this worsening due to another Java version, due to the new Isabelle >> font, or has it some other reasons? How to find out? > > From a distance, I would say that this is a matter of the Java 11 > font-renderer, which is provided by https://adoptopenjdk.net. The one by > Oracle is much worse -- OpenJdk not the non-free Java. (Note that the > license change of non-free Oracle Java no longer allows to bundle it.)
Even more, JDK 11 from Oracle is now distributed as non-free: users have to pay a subscription to use it in applications. Only some testing and development is allowed without extra payment. (See https://www.oracle.com/technetwork/java/javase/terms/license/javase-license.html). Java 8 is being phased out after Jan-2019. Since the Java community is notoriously slow in giving up legacy versions, there will be a bit more time to hold the breath and pretend that nothing has happened. In contrast, Isabelle is already on Java 11: it performs much better than Java 8, especially on high-end hardware with many cores (potentially also on "containers" like Docker). I have already seen some Isabelle/Scala scalability problems some months ago; luckily this has been resolved with Java 11. Makarius _______________________________________________ isabelle-dev mailing list isabelle-...@in.tum.de https://mailmanbroy.informatik.tu-muenchen.de/mailman/listinfo/isabelle-dev
