title: Kotlin VerifyError: Uninitialized object exists on backward branch 90
body: <p>I am using the <a href="https://kotlinlang.org/docs/tutorials/getting-started.html" rel="noreferrer">Kotlin getting started guide</a> to setup Kotlin for the first time on IntelliJ IDEA with the following configuration:</p>
  
  <pre><code>IntelliJ IDEA 2017.2.5
  Build #IC-172.4343.14, built on September 26, 2017
  JRE: 1.8.0_152-release-915-b12 x86_64
  JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
  Mac OS X 10.11.6
  </code></pre>
  
  <p>I created an App.kt file in a new Kotlin project with the following code:</p>
  
  <pre><code>fun main(args: Array&lt;String&gt;) {
      println("hello")
  }
  </code></pre>
  
  <p>On running the code through the IDE, I get the following error:</p>
  
  <pre><code>Error:Internal error: (java.lang.VerifyError) Uninitialized object exists on backward branch 90
  Exception Details:
    Location:
      org/jetbrains/kotlin/jps/build/KotlinBuilder.createCompileEnvironment(Ljava/util/Map;Lorg/jetbrains/kotlin/incremental/components/LookupTracker;Lorg/jetbrains/jps/incremental/CompileContext;Lorg/jetbrains/kotlin/jps/build/KotlinBuilder$MessageCollectorAdapter;)Lorg/jetbrains/kotlin/compilerRunner/JpsCompilerEnvironment; @171: goto
    Reason:
      Error exists in the bytecode
    Bytecode:
      0000000: bb03 fe59 b703 ff3a 0619 063a 0719 0713
      0000010: 02d7 2cb6 0403 5719 0713 0405 bb04 0759
      0000020: 2b3a 083a 093a 0a3a 0b3a 0c19 083a 0dbb
      0000030: 0409 5919 08b9 040a 0100 b804 10b7 0411
      0000040: c002 893a 0e19 0db9 028c 0100 c000 b03a
      0000050: 0f19 0fb9 00b9 0100 3a10 1910 b900 be01
      0000060: 0099 004d 1910 b900 c201 003a 1119 0e19
      0000070: 11c0 028e 3a12 3a13 1912 b902 9101 00c0
      0000080: 00c4 b804 173a 1419 1319 1419 11c0 028e
      0000090: 3a15 3a16 3a17 1915 b902 9401 003a 1819
      00000a0: 1719 1619 18b9 041b 0300 57a7 ffaf 190e
      00000b0: 0000 3a13 190c 190b 190a 1909 1913 b704
      00000c0: 1eb6 0403 5719 0713 0420 bb04 2259 2c2b
      00000d0: 2db7 0425 b604 0357 1907 b604 283a 052a
      00000e0: b704 2c3a 0619 06c6 0010 1906 b904 3101
      00000f0: 00b6 013c 9a00 1319 04b2 0216 1304 3301
      0000100: 0701 b801 fa01 b0bb 0262 5919 0619 05b2
      0000110: 002e b604 3719 04c0 01c7 bb04 3959 b704
      0000120: 3ab7 043d b0                           
    Stackmap Table:
      full_frame(@90,{Object[#2],Object[#649],Object[#727],Object[#98],Object[#428],Top,Object[#1022],Object[#1022],Object[#649],Uninitialized[#28],Uninitialized[#28],Object[#1005],Object[#1022],Object[#649],Object[#649],Object[#176],Object[#187]},{})
      same_frame_extended(@174)
      full_frame(@247,{Object[#2],Object[#649],Object[#727],Object[#98],Object[#428],Object[#1102],Object[#1070],Object[#1022],Object[#649],Object[#1031],Object[#1031],Object[#1005],Object[#1022],Object[#649],Object[#649],Object[#176],Object[#187],Top,Top,Object[#649]},{})
      same_frame(@263)
  java.lang.VerifyError: Uninitialized object exists on backward branch 90
  Exception Details:
    Location:
      org/jetbrains/kotlin/jps/build/KotlinBuilder.createCompileEnvironment(Ljava/util/Map;Lorg/jetbrains/kotlin/incremental/components/LookupTracker;Lorg/jetbrains/jps/incremental/CompileContext;Lorg/jetbrains/kotlin/jps/build/KotlinBuilder$MessageCollectorAdapter;)Lorg/jetbrains/kotlin/compilerRunner/JpsCompilerEnvironment; @171: goto
    Reason:
      Error exists in the bytecode
    Bytecode:
      0000000: bb03 fe59 b703 ff3a 0619 063a 0719 0713
      0000010: 02d7 2cb6 0403 5719 0713 0405 bb04 0759
      0000020: 2b3a 083a 093a 0a3a 0b3a 0c19 083a 0dbb
      0000030: 0409 5919 08b9 040a 0100 b804 10b7 0411
      0000040: c002 893a 0e19 0db9 028c 0100 c000 b03a
      0000050: 0f19 0fb9 00b9 0100 3a10 1910 b900 be01
      0000060: 0099 004d 1910 b900 c201 003a 1119 0e19
      0000070: 11c0 028e 3a12 3a13 1912 b902 9101 00c0
      0000080: 00c4 b804 173a 1419 1319 1419 11c0 028e
      0000090: 3a15 3a16 3a17 1915 b902 9401 003a 1819
      00000a0: 1719 1619 18b9 041b 0300 57a7 ffaf 190e
      00000b0: 0000 3a13 190c 190b 190a 1909 1913 b704
      00000c0: 1eb6 0403 5719 0713 0420 bb04 2259 2c2b
      00000d0: 2db7 0425 b604 0357 1907 b604 283a 052a
      00000e0: b704 2c3a 0619 06c6 0010 1906 b904 3101
      00000f0: 00b6 013c 9a00 1319 04b2 0216 1304 3301
      0000100: 0701 b801 fa01 b0bb 0262 5919 0619 05b2
      0000110: 002e b604 3719 04c0 01c7 bb04 3959 b704
      0000120: 3ab7 043d b0                           
    Stackmap Table:
      full_frame(@90,{Object[#2],Object[#649],Object[#727],Object[#98],Object[#428],Top,Object[#1022],Object[#1022],Object[#649],Uninitialized[#28],Uninitialized[#28],Object[#1005],Object[#1022],Object[#649],Object[#649],Object[#176],Object[#187]},{})
      same_frame_extended(@174)
      full_frame(@247,{Object[#2],Object[#649],Object[#727],Object[#98],Object[#428],Object[#1102],Object[#1070],Object[#1022],Object[#649],Object[#1031],Object[#1031],Object[#1005],Object[#1022],Object[#649],Object[#649],Object[#176],Object[#187],Top,Top,Object[#649]},{})
      same_frame(@263)
      at org.jetbrains.kotlin.jps.build.KotlinBuilderService.createModuleLevelBuilders(KotlinBuilderService.java:30)
      at org.jetbrains.jps.incremental.BuilderRegistry.&lt;init&gt;(BuilderRegistry.java:54)
      at org.jetbrains.jps.incremental.BuilderRegistry.&lt;init&gt;(BuilderRegistry.java:33)
      at org.jetbrains.jps.incremental.BuilderRegistry$Holder.&lt;clinit&gt;(BuilderRegistry.java:36)
      at org.jetbrains.jps.incremental.BuilderRegistry.getInstance(BuilderRegistry.java:43)
      at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:133)
      at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:295)
      at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:125)
      at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:236)
      at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler$$Lambda$3/1147174008.run(Unknown Source)
      at org.jetbrains.jps.service.impl.SharedThreadPoolImpl.lambda$executeOnPooledThread$0(SharedThreadPoolImpl.java:42)
      at org.jetbrains.jps.service.impl.SharedThreadPoolImpl$$Lambda$1/684874119.run(Unknown Source)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      at java.lang.Thread.run(Thread.java:745)
  </code></pre>