Coverage Summary for Class: Foo (dev.suresh.lang)

 package dev.suresh.lang
 
 import java.lang.invoke.*
 import java.util.*
 
 /**
  * Run with "-XX:+UnlockDiagnosticVMOptions -XX:+ShowHiddenFrames" to see the hidden classes.
  *
  * --add-opens java.base/java.util=ALL-UNNAMED
  *
  * @since JDK15
  */
 fun main() {
   println("Reading Foo bytes...")
   val clBytes = Foo::class.java.toBytes() ?: error("Can't load Foo!")
 
   println(HiddenData::class.java.toBytes()?.decodeToString())
   println("-------------------------")
   val t = HiddenData("kotlin")
   println(t.javaClass.toBytes()?.decodeToString())
 
   val lookup = MethodHandles.lookup().defineHiddenClass(clBytes, true)
   val run = lookup.findStatic(lookup.lookupClass(), "run", MethodType.methodType(Void.TYPE))
   // run.invokeExact()
 
   val mh = MethodHandles.privateLookupIn(Formatter::class.java, MethodHandles.lookup())
   println(MethodHandles.lookup())
   println(mh.lookupClass())
 
   println(mh.lookupModes())
   val m =
       mh.findVirtual(
           mh.lookupClass(),
           "parse",
           MethodType.methodType(java.util.List::class.java, java.lang.String::class.java))
 
   println(m.invoke(Formatter(), "%s"))
   // Concurrent
 }
 
 interface Foo {
   companion object {
 
     @JvmStatic
     fun run() {
       println("Inside Foo")
       error("Error from $methodName")
     }
   }
 }
 
 data class HiddenData(val name: String)