I can help with JDK8 enforcement — just give me the links to target suites when agreed.
> On 25 Sep 2019, at 01:53, Denis Magda <dma...@apache.org> wrote: > > Nikolay, > > Thanks for the details. How about enforcing JDK 8 for the Spark integration > in general and run its tests on the VM only? We'll do this until Spark > community fully support JDK 11+. > > As for Spark 2.4.0 module [1], how about releasing Ignite 2.7.7 with Spark > related changes only? As long as Ignite modularization is a long process, > we can follow your advice and create two more modules ignite_spark_24 and > ignite_spark_25 . Plus Alexey is working on extra Spark improvements. > > [1] https://issues.apache.org/jira/browse/IGNITE-12054 > - > Denis > > > On Thu, Sep 19, 2019 at 11:58 PM Nikolay Izhikov <nizhi...@apache.org> > wrote: > >> Hello, Denis. >> >> Spark uses Scala 2.11 [1] >> Scala 2.11 compatible with the jdk version described on [2]. >> >> Few notes from the link: >> >>> We recommend using Java 8 for compiling Scala code >>> JDK 11 compatibility notes >>> As of Scala 2.13.0, 2.12.8 and 2.11.12, JDK 11 support is incomplete >> >> I also got several issues with the Spark itself when trying to run it on >> the Java 11. >> Please, take a look at [3], [4] >> >> All in all, with the spark 2.3 we should stay on java8 to get things >> worked. >> >> [1] http://spark.apache.org/docs/2.4.0/ >> [2] https://docs.scala-lang.org/overviews/jdk-compatibility/overview.html >> [3] >> >> https://stackoverflow.com/questions/49961991/java-lang-illegalargumentexception-at-org-apache-xbean-asm5-classreader-initu?noredirect=1&lq=1 >> [4] >> >> https://stackoverflow.com/questions/51352591/spark-java-illegalargumentexception-at-org-apache-xbean-asm5-classreader >> >> >> чт, 19 сент. 2019 г. в 21:39, Denis Magda <dma...@apache.org>: >> >>> Nikolay, >>> >>> What needs to be done to ensure Java 9++ works with Spark Examples? Do we >>> need to create another Spark module or drop some scala version? >>> >>> - >>> Denis >>> >>> >>> On Thu, Sep 19, 2019 at 9:23 AM Nikolay Izhikov <nizhi...@apache.org> >>> wrote: >>> >>>> Hello, Igniters. >>>> >>>> Examples suite on TC doesn't work correctly under java9+. [1], [2] >>>> >>>> The reason is the Spark examples. >>>> >>>> Spark 2.3(our current version) work with scala 2.11 and scala 2.11 >>> support >>>> of java9+ is "incomplete". >>>> >>>> Can we stick example suite to jdk8 only? >>>> >>>> [1] >>>> >>> >> https://ci.ignite.apache.org/viewLog.html?buildId=4610507&buildTypeId=IgniteTests24Java8_Examples >>>> [2] >>>> >>> >> https://ci.ignite.apache.org/viewLog.html?buildId=4609013&buildTypeId=IgniteTests24Java8_Examples >>>> >>> >>
