Sometimes, when running Organize Imports, it added anonymous imports to the imports list. I see references to val names from definition blocks in the class. I also see imports for PlayFramework endpoint mappings.

i.e.

import List[com.$anonfun.$anonfun.items
import javax.inject.{ Inject, Singleton }
import play.api.data.FormError
import play.api.mvc.Action
import play.api.mvc.Results.{ InternalServerError, Ok }
import play.getSearch.$anonfun.err
import play.mvc.Controller


The below code is very similar to what caused the bug to manifest (it is where the "List" and "items" references come from). However, this example does not cause the problem. But, when the problem is triggered in the IDE, it happens repeatably. (

package com.mc10inc.controllers

import play.mvc.Controller

case class SampleResult(size : Int)

class BugReportExample extends Controller {

  def getSearch() : List[SampleResult] = {
    val stuff = List(List(Some(1L), Some(2L), None), List(Some(5L)))
    val stuffStuff = List(stuff, stuff)

    stuffStuff flatMap {
      identity[List[List[Option[Long]]]]
    } map {
      list ⇒
        { // pack
          val items = list.flatten[Long]
          SampleResult(items.size)
        }
    }
  }
}