reflections complicate using scalaj in graal builds

[snoble]

Having no dependencies makes scalaj-http really appealing for use with graal. But there is one hiccup because scalaj has a single use of reflections[0]. If there was a way to remove this use of reflections then this could easily be built into a graal binary. Alternatively, there is a work around of having a reflectconfig that looks like

[
  {
    "name" : "javax.net.ssl.HttpsURLConnection",
    "allDeclaredConstructors" : false,
    "allPublicConstructors" : false,
    "allDeclaredMethods" : false,
    "allPublicMethods" : true,
    "allDeclaredClasses" : false,
    "allPublicClasses" : false
  }
]

I'm not sure if there's any interest in making this library easier to use with graal but I figured I should share the work around in case it is valuable to anyone else.

[0]:

scalaj-http/src/main/scala/scalaj/http/Http.scala

Line 57 in 40c17af

cs.getClass.getDeclaredFields.find(_.getName == "delegate").foreach{ del =>