Kotlin and quasar MWE for Unable to instrument class kotlin/SynchronizedLazyImpl https://github.com/puniverse/quasar/issues/288

build.gradle

apply plugin: 'java'
apply plugin: 'idea'
apply plugin: 'kotlin'
apply plugin: 'application'

buildscript {
    ext.kotlin_version = '1.1.51'
    ext.quasar_version = '0.7.9'

    repositories {
        mavenCentral()
        maven {
            url "https://plugins.gradle.org/m2/"
        }
    }

    dependencies {
        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version")
        classpath("org.jetbrains.kotlin:kotlin-noarg:$kotlin_version")
        classpath("org.jetbrains.kotlin:kotlin-allopen:$kotlin_version")
    }
}

configurations {
    quasar
}

repositories {
    mavenCentral()
    maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
}

dependencies {
    compile("org.jetbrains.kotlin:kotlin-stdlib-jre8:$kotlin_version")
    compile("org.jetbrains.kotlin:kotlin-reflect:$kotlin_version")

    compile("co.paralleluniverse:quasar-core:$quasar_version:jdk8")
    compile("co.paralleluniverse:quasar-actors:$quasar_version")
    compile("co.paralleluniverse:quasar-kotlin:$quasar_version")
    quasar "co.paralleluniverse:quasar-core:$quasar_version:jdk8"
}

tasks.withType(JavaForkOptions) {
    systemProperty 'co.paralleluniverse.fibers.detectRunawayFibers', 'false'
    //uncomment if there are problems with fibers
    systemProperty 'co.paralleluniverse.fibers.verifyInstrumentation', 'true'

    jvmArgs "-javaagent:${(++configurations.quasar.iterator())}"
}

mainClassName = "mwe.Main"

Main.kt

package mwe

import co.paralleluniverse.fibers.Suspendable
import co.paralleluniverse.kotlin.Actor
import co.paralleluniverse.kotlin.register
import co.paralleluniverse.kotlin.spawn
import co.paralleluniverse.strands.Strand

class LazyActor : Actor() {

    val x: String by lazy {
        "some string"
    }

    @Suspendable
    override fun doRun() {
        while (true) {
            println(x)
            Strand.sleep(1000)
        }
    }
}


object Main {

    @JvmStatic
    fun main(args: Array<String>) {
        spawn(register("actorId", LazyActor()))
    }
}

run.log

:compileKotlin
Using Kotlin incremental compilation
Could not perform incremental compilation: Could not connect to Kotlin compile daemon
Could not connect to kotlin daemon. Using fallback strategy.
warning: the '-d' option with a directory destination is ignored because '-Xbuild-file' is specified
:compileJava NO-SOURCE
:copyMainKotlinClasses UP-TO-DATE
:processResources NO-SOURCE
:classes UP-TO-DATE
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
[quasar] WARNING: UnableToInstrumentException encountered when instrumenting kotlin/SynchronizedLazyImpl#getValue()Ljava/lang/Object;: Unable to instrument kotlin/SynchronizedLazyImpl#getValue()Ljava/lang/Object; because of synchronization
[quasar] ERROR: Unable to instrument class kotlin/SynchronizedLazyImpl
java.lang.NullPointerException
	at co.paralleluniverse.asm.MethodWriter.visitMaxs(Unknown Source)
	at co.paralleluniverse.asm.tree.MethodNode.accept(Unknown Source)
	at co.paralleluniverse.fibers.instrument.InstrumentClass.visitEnd(InstrumentClass.java:260)
	at co.paralleluniverse.asm.ClassReader.accept(Unknown Source)
	at co.paralleluniverse.asm.ClassReader.accept(Unknown Source)
	at co.paralleluniverse.fibers.instrument.QuasarInstrumentor.instrumentClass(QuasarInstrumentor.java:134)
	at co.paralleluniverse.fibers.instrument.QuasarInstrumentor.instrumentClass(QuasarInstrumentor.java:94)
	at co.paralleluniverse.fibers.instrument.JavaAgent$Transformer.transform(JavaAgent.java:209)
	at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
	at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:428)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at kotlin.LazyKt.lazy(Lazy.kt:40)
	at mwe.LazyActor.<init>(Main.kt:11)
	at mwe.Main.main(Main.kt:29)
[quasar] ERROR: while transforming kotlin/SynchronizedLazyImpl: null
java.lang.NullPointerException
	at co.paralleluniverse.asm.MethodWriter.visitMaxs(Unknown Source)
	at co.paralleluniverse.asm.tree.MethodNode.accept(Unknown Source)
	at co.paralleluniverse.fibers.instrument.InstrumentClass.visitEnd(InstrumentClass.java:260)
	at co.paralleluniverse.asm.ClassReader.accept(Unknown Source)
	at co.paralleluniverse.asm.ClassReader.accept(Unknown Source)
	at co.paralleluniverse.fibers.instrument.QuasarInstrumentor.instrumentClass(QuasarInstrumentor.java:134)
	at co.paralleluniverse.fibers.instrument.QuasarInstrumentor.instrumentClass(QuasarInstrumentor.java:94)
	at co.paralleluniverse.fibers.instrument.JavaAgent$Transformer.transform(JavaAgent.java:209)
	at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
	at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:428)
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at kotlin.LazyKt.lazy(Lazy.kt:40)
	at mwe.LazyActor.<init>(Main.kt:11)
	at mwe.Main.main(Main.kt:29)
:run
some string
some string

BUILD SUCCESSFUL