% tail test/files/run/som/*.{java,scala}
==> test/files/run/som/Java_1.java <==

public class Java_1<K, V> {
    public class Inner extends Java_1<K, V> {

    }
}

class SomeOtherJava {

}
==> test/files/run/som/Macros_1.scala <==
  def fImpl(c: Context): c.Tree = {
    import c.universe._
    import reflect.runtime.{universe => ru}

    val formatterSym = c.universe.symbolOf[bakery.SomeOtherJava]
    ru.internal.createImporter(c.universe).importSymbol(formatterSym)

    q"()"
  }
}

==> test/files/run/som/Test_2.scala <==
object Test {
  bakery.Bakery.f
}

% javac -d /tmp test/files/run/som/*.java && qscalac -classpath /tmp -d /tmp test/files/run/som/Macros_1.scala && qscalac -classpath /tmp -d /tmp test/files/run/som/Test_2.scala
error: error while loading Java_1$Inner, class file '/tmp/bakery/Java_1$Inner.class' is broken
(class java.util.NoSuchElementException/key not found: K)
one error found

% tail sandbox/{Java_1.java,test.scala}
==> sandbox/Java_1.java <==
public class Java_1<K, V> {
    public class Inner extends Java_1<K, V> {
    }
}

==> sandbox/test.scala <==
object Test {
  classOf[Java_1$Inner]
}

% javac -d /tmp sandbox/Java_1.java && qscalac -classpath /tmp sandbox/test.scala
error: error while loading Java_1$Inner, class file '/tmp/Java_1$Inner.class' is broken
(class java.util.NoSuchElementException/key not found: K)
sandbox/test.scala:2: warning: a pure expression does nothing in statement position; you may be omitting necessary parentheses
  classOf[Java_1$Inner]
         ^
one warning found
one error found