disable Akka tests known to fail on JDK 9 or 10

[SethTisue]

No description provided.

[SethTisue]

queued: https://scala-ci.typesafe.com/view/scala-2.12.x/job/scala-2.12.x-jdk9-integrate-community-build/259/

[SethTisue]

https://scala-ci.typesafe.com/view/scala-2.12.x/job/scala-2.12.x-jdk9-integrate-community-build/261/ shows another problem that needs fixing before akka-more will be green: [akka-more:error] java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlRootElement

[SethTisue]

go, run 264! do the best you can! https://scala-ci.typesafe.com/view/scala-2.12.x/job/scala-2.12.x-jdk9-integrate-community-build/264/

[SethTisue]

next try: https://scala-ci.typesafe.com/view/scala-2.12.x/job/scala-2.12.x-jdk9-integrate-community-build/273/ (404 for now)

[SethTisue]

[akka-stream] [error] Failed tests:
[akka-stream] [error] 	akka.remote.serialization.MiscMessageSerializerSpec

perhaps intermittent? let's see: https://scala-ci.typesafe.com/view/scala-2.12.x/job/scala-2.12.x-jdk9-integrate-community-build/276/ (404 for now)

(perhaps it was already failing before, or it never got the chance to fail because some other subproject failed first? I didn't check)

[SethTisue]

failed again, apparently not intermittent. let's try JDK10: https://scala-ci.typesafe.com/view/scala-2.12.x/job/scala-2.12.x-jdk10-integrate-community-build/68/

[SethTisue]

hmm, JDK 10 didn't get past akka-actor, [akka-actor] [error] akka.pattern.CircuitBreakerSpec failed, not sure if intermittent? queued another run: https://scala-ci.typesafe.com/view/scala-2.12.x/job/scala-2.12.x-jdk10-integrate-community-build/70/

[SethTisue]

same result. I should report it upstream

[SethTisue]

I commented on akka/akka#23402

[SethTisue]

disabled the test. new run:
https://scala-ci.typesafe.com/view/scala-2.12.x/job/scala-2.12.x-jdk10-integrate-community-build/81/ (404 for now)

[SethTisue]

gah

[akka-actor] [error] /home/jenkins/workspace/scala-2.12.x-jdk10-integrate-community-build/target-0.9.12/project-builds/akka-actor-b454a7b577ffd7774882613b44b77d1f5836b1c1/akka-actor/src/main/scala/akka/util/Unsafe.java:14:29: object misc is not a member of package sun
[akka-actor] [error]     public static final sun.misc.Unsafe instance;
[akka-actor] [error]                             ^

[SethTisue]

project/AkkaBuild.scala has:

  // -XDignore.symbol.file suppresses sun.misc.Unsafe warnings
  final val DefaultJavacOptions = Seq("-encoding", "UTF-8", "-Xlint:unchecked", "-XDignore.symbol.file")

is this an OpenJDK vs. OracleJDK thing?

jenkins@ip-172-31-2-4:~$ echo $JAVA_HOME
/usr/lib/jvm/java-10-openjdk-x64
jenkins@ip-172-31-2-4:~$ cat J.java
public interface J {
    sun.misc.Unsafe foo();
}
jenkins@ip-172-31-2-4:~$ $JAVA_HOME/bin/javac J.java
J.java:2: warning: Unsafe is internal proprietary API and may be removed in a future release
    sun.misc.Unsafe foo();
            ^
1 warning

gah, sun.misc.Unsafe exists in OpenJDK too, so how can "object misc is not a member of package sun " be happening?

[SethTisue]

the sun.misc.Unsafe thing isn't this PR's fault, it's also happening in the regular jdk9 and jdk10 builds

[SethTisue]

Ima go ahead and merge this, and pursue the sun.misc.Unsafe thing separately