Classpath initialization issues on JDK9

[scabug]

Latest (b45) release of JDK9 includes modularized Java's standard library. This causes problems with initialization of the classpath:

$ scalac A.scala
error: scala.reflect.internal.MissingRequirementError: object java.lang.Object in compiler mirror not found.
	at scala.reflect.internal.MissingRequirementError$.signal(MissingRequirementError.scala:17)
	at scala.reflect.internal.MissingRequirementError$.notFound(MissingRequirementError.scala:18)
	at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:53)
	at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:45)
	at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:45)
	at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:66)
	at scala.reflect.internal.Mirrors$RootsBase.getClassByName(Mirrors.scala:102)
	at scala.reflect.internal.Mirrors$RootsBase.getRequiredClass(Mirrors.scala:105)
	at scala.reflect.internal.Definitions$DefinitionsClass.ObjectClass$lzycompute(Definitions.scala:257)
	at scala.reflect.internal.Definitions$DefinitionsClass.ObjectClass(Definitions.scala:257)
	at scala.reflect.internal.Definitions$DefinitionsClass.init(Definitions.scala:1387)
	at scala.tools.nsc.Global$Run.<init>(Global.scala:1053)
	at scala.tools.nsc.Driver.doCompile(Driver.scala:31)
	at scala.tools.nsc.MainClass.doCompile(Main.scala:23)
	at scala.tools.nsc.Driver.process(Driver.scala:51)
	at scala.tools.nsc.Driver.main(Driver.scala:64)
	at scala.tools.nsc.Main.main(Main.scala)

REPL is hit the same way. As things stand right now, you can't run Scala on JDK9.

[scabug]

Imported From: https://issues.scala-lang.org/browse/SI-9103?orig=1
Reporter: @gkossakowski
Affected Versions: 2.11.5

[scabug]

@SethTisue said:
umbrella JDK 9 ticket at scala/scala-dev#139