Problem loading a Scala *object* reflectively ..

gistfile1.scala

Foo.scala as ..

package net.debasishg.domain.trade.service
trait Foo {
  final val foo: Int => Int = {i => i * 2}
}
object Foo extends Foo

and a test spec TSpec.scala as ..

@RunWith(classOf[JUnitRunner])
class TSpec extends Spec with ShouldMatchers {
  describe("serializable") {
    it("should do") {
      import java.net._

      val urls = Array(
        new URL("file:///home/debasish/my-projects/cqrs-akka/target/scala_2.9.0/classes/"),
        new URL("file:////home/debasish/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.9.0.jar"))
      val cl = new URLClassLoader(urls).loadClass("net.debasishg.domain.trade.service.Foo$")
      println(cl)
      println(cl.newInstance)
    }
  }
}

running the test case I get the following exception in the newInstance statement ..

java.lang.IllegalAccessException: Class net.debasishg.domain.trade.service.TSpec$$anonfun$1$$anonfun$apply$mcV$sp$1 can not access a member of class net.debasishg.domain.trade.service.Foo$ with modifiers "private"
[info]   at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:95)
[info]   at java.lang.Class.newInstance0(Class.java:366)
....
....

Help ? Anyone ? What's the private thing that it refers to ? When I do a javap on Foo$, I get ..


debasish@debasishg:~/my-projects/cqrs-akka$ javap -private -classpath ~/my-projects/cqrs-akka/target/scala_2.9.0/classes net.debasishg.domain.trade.service.Foo$
Compiled from "Foo.scala"
public final class net.debasishg.domain.trade.service.Foo$ extends java.lang.Object implements net.debasishg.domain.trade.service.Foo,scala.ScalaObject{
    public static final net.debasishg.domain.trade.service.Foo$ MODULE$;
    private final scala.Function1 foo;
    public static {};
    public scala.Function1 foo();
    public void net$debasishg$domain$trade$service$Foo$_setter_$foo_$eq(scala.Function1);
    private net.debasishg.domain.trade.service.Foo$();
}

The constructor is private. You need to get the MODULE$ field.

Thanks for the feedback .. got it now working. Missed the MODULE$ field. Should have opened at the generated class before complaining :-)