gistfile1.scala

  import xsbt.ScalaInstance
  import java.net.{URL, URLClassLoader}

  var jniLoader: ClassLoader = null

  override def getScalaInstance(version: String): ScalaInstance = {
    localScalaInstances.find(_.version == version) getOrElse {
      val si = ScalaInstance(version, info.launcher)
      if (jniLoader == null) {
        val list = List(
          new File("javasqlite/sqlite.jar").toURL,
          new File("ext/postgresql-9.0-801.jdbc4.jar").toURL
        )
        jniLoader = new URLClassLoader(list.toArray[URL], si.parentLoader)
      }
      si.jniLoader = jniLoader
      si
    }
  }