Hello. A lot of libraries are multi-release jars now, H2 is not an exclusion. Jetty got support of multi-release jars in 2017 *before* release of H2 1.4.197.
If you need to use old version of Jetty with a new version of H2 or other multi-release jar you can simply remove META-INF/versions directory, it is not used with Java 8 or an older version. Otherwise it's better to upgrade Jetty too. Do not expect significant performance improvements on Java 9, some things are optimized, but they actively used only in some applications. In the next version of H2 classes in this directory will also be used to improve resolution of CURRENT_TIMESTAMP and similar functions on Java 9+. Some features of a new Java versions are accessed via reflection, so there may be other differences between Java versions. -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/h2-database. For more options, visit https://groups.google.com/d/optout.
