$ dotc t.scala
exception caught when loading module class Object$: java.lang.AssertionError: assertion failed: attempt to parse java.lang.Object from classfile
exception occurred while typechecking t.scala
exception occurred while compiling t.scala
Exception in thread "main" java.lang.AssertionError: assertion failed: attempt to parse java.lang.Object from classfile
at scala.Predef$.assert(Predef.scala:165)
at dotty.tools.dotc.core.classfile.ClassfileParser$ConstantPool.getSuperClass(ClassfileParser.scala:1017)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseParents$1(ClassfileParser.scala:103)
<snipped>
$
$ cat t.scala
object Test {
println (Object.reflect.runtime.universe.reify (new Object().getClass))
}
$