title: Gradle build for kotlin failing
body: <p>I have a kotlin package for which I'm trying to write a gradle setup to automate building. The related repository can be found on github -> <a href="https://github.com/ishankhare07/kotlin-web-server/tree/feature/dynamic-routing" rel="nofollow noreferrer">https://github.com/ishankhare07/kotlin-web-server/tree/feature/dynamic-routing</a></p>
  
  <p>Currently running <code>gradle build</code> or <code>gradle compileLKotlin</code> fails with the following error:</p>
  
  <pre><code>e: java.lang.ArrayIndexOutOfBoundsException: 450
      at org.jetbrains.org.objectweb.asm.ClassReader.readUnsignedShort(ClassReader.java:2464)
      at org.jetbrains.org.objectweb.asm.ClassReader.readUTF8(ClassReader.java:2525)
      at org.jetbrains.org.objectweb.asm.ClassReader.readModule(ClassReader.java:761)
      at org.jetbrains.org.objectweb.asm.ClassReader.accept(ClassReader.java:646)
      at org.jetbrains.org.objectweb.asm.ClassReader.accept(ClassReader.java:507)
      at org.jetbrains.kotlin.resolve.jvm.modules.JavaModuleInfo$Companion.read(JavaModuleInfo.kt:67)
      at org.jetbrains.kotlin.cli.jvm.modules.CliJavaModuleFinder.findSystemModule(CliJavaModuleFinder.kt:44)
      at org.jetbrains.kotlin.cli.jvm.modules.CliJavaModuleFinder.access$findSystemModule(CliJavaModuleFinder.kt:25)
      at org.jetbrains.kotlin.cli.jvm.modules.CliJavaModuleFinder$systemModules$1.invoke(CliJavaModuleFinder.kt:37)
      at org.jetbrains.kotlin.cli.jvm.modules.CliJavaModuleFinder$systemModules$1.invoke(CliJavaModuleFinder.kt:25)
      at kotlin.sequences.TransformingSequence$iterator$1.next(Sequences.kt:149)
      at kotlin.sequences.FilteringSequence$iterator$1.calcNext(Sequences.kt:109)
      at kotlin.sequences.FilteringSequence$iterator$1.hasNext(Sequences.kt:133)
      at kotlin.sequences.FlatteningSequence$iterator$1.ensureItemIterator(Sequences.kt:254)
      at kotlin.sequences.FlatteningSequence$iterator$1.hasNext(Sequences.kt:241)
      at kotlin.sequences.SequencesKt___SequencesKt.none(_Sequences.kt:1239)
      at org.jetbrains.kotlin.cli.jvm.compiler.ClasspathRootsResolver.addModularRoots(ClasspathRootsResolver.kt:227)
      at org.jetbrains.kotlin.cli.jvm.compiler.ClasspathRootsResolver.computeRoots(ClasspathRootsResolver.kt:124)
      at org.jetbrains.kotlin.cli.jvm.compiler.ClasspathRootsResolver.convertClasspathRoots(ClasspathRootsResolver.kt:79)
      at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.&lt;init&gt;(KotlinCoreEnvironment.kt:230)
      at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment.&lt;init&gt;(KotlinCoreEnvironment.kt:114)
      at org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment$Companion.createForProduction(KotlinCoreEnvironment.kt:409)
      at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.createCoreEnvironment(K2JVMCompiler.kt:286)
      at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.createEnvironmentWithScriptingSupport(K2JVMCompiler.kt:276)
      at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:155)
      at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:63)
      at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.java:109)
      at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.java:53)
      at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:92)
      at org.jetbrains.kotlin.incremental.IncrementalJvmCompilerRunner.runCompiler(IncrementalJvmCompilerRunner.kt:451)
      at org.jetbrains.kotlin.incremental.IncrementalJvmCompilerRunner.runCompiler(IncrementalJvmCompilerRunner.kt:97)
      at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileIncrementally(IncrementalCompilerRunner.kt:218)
      at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.access$compileIncrementally(IncrementalCompilerRunner.kt:37)
      at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner$compile$2.invoke(IncrementalCompilerRunner.kt:80)
      at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compile(IncrementalCompilerRunner.kt:92)
      at org.jetbrains.kotlin.daemon.CompileServiceImpl.execIncrementalCompiler(CompileServiceImpl.kt:518)
      at org.jetbrains.kotlin.daemon.CompileServiceImpl.access$execIncrementalCompiler(CompileServiceImpl.kt:97)
      at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:400)
      at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:97)
      at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:895)
      at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$$inlined$ifAlive$lambda$2.invoke(CompileServiceImpl.kt:97)
      at org.jetbrains.kotlin.daemon.common.DummyProfiler.withMeasure(PerfUtils.kt:137)
      at org.jetbrains.kotlin.daemon.CompileServiceImpl.checkedCompile(CompileServiceImpl.kt:925)
      at org.jetbrains.kotlin.daemon.CompileServiceImpl.doCompile(CompileServiceImpl.kt:894)
      at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:399)
      at jdk.internal.reflect.GeneratedMethodAccessor23.invoke(Unknown Source)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:564)
      at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
      at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
      at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
      at java.base/java.security.AccessController.doPrivileged(Native Method)
      at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
      at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
      at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
      at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
      at java.base/java.security.AccessController.doPrivileged(Native Method)
      at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
      at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135)
      at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
      at java.base/java.lang.Thread.run(Thread.java:844)
  
  
  FAILURE: Build failed with an exception.
  
  * What went wrong:
  Execution failed for task ':compileKotlin'.
  &gt; Internal compiler error. See log for more details
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
  
  * Get more help at https://help.gradle.org
  
  BUILD FAILED in 1s
  </code></pre>
  
  <p>Below is my <code>build.gradle</code> file:</p>
  
  <pre><code>buildscript {
      ext.kotlin_version = '1.2.21'
  
  
      dependencies {
      classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
      }
  }
  
  plugins {
      id "org.jetbrains.kotlin.jvm" version "1.2.21"
      id "com.jfrog.bintray" version "1.7.3"
      id 'maven-publish'
  }
  
  repositories {
      jcenter()
      mavenCentral()
  }
  
  dependencies {
      compile "org.jetbrains.kotlin:kotlin-stdlib"
  }
  
  jar {
      from {
          configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
      }
  }
  
  task sourcesJar(type: Jar, dependsOn: project.classes) {
      from sourceSets.main.allSource
  }
  
  publishing {
      publications {
          publishToBintray(MavenPublication) {
              artifact sourcesJar
              groupId 'com.ishankhare.kotlin-server'
          }
      }
  }
  
  bintray {
      user = 'ishankhare07'
      key = '9b693a0c46f7021021a2422f3ea837f0ad8e3ea6'
          publications = ['publishToBintray']
      pkg {
          version {
              name = 'v0.0.1'
          }
          repo = 'server'
          name = 'server'
          licenses = ['MIT']
          vcsUrl = 'https://github.com/ishankhare07/kotlin-web-server'
      }
  
  }
  
  
  
  sourceSets {
      main.kotlin.srcDirs += "./"
  }
  </code></pre>
  
  <p>On running the build with <code>--info</code> flag I get the following output:</p>
  
  <pre><code>Initialized native services in: /Users/ishankhare/.gradle/native
  The client will now receive all logging from the daemon (pid: 11054). The daemon log file: /Users/ishankhare/.gradle/daemon/4.10/daemon-11054.out.log
  Starting 42nd build in daemon [uptime: 43 mins 31.646 secs, performance: 100%, no major garbage collections]
  Using 4 worker leases.
  Starting Build
  Settings evaluated using settings file '/Users/ishankhare/code/ishan/kotlin-web-server/server/settings.gradle'.
  Projects loaded. Root project using build file '/Users/ishankhare/code/ishan/kotlin-web-server/server/build.gradle'.
  Included projects: [root project 'server']
  
  &gt; Configure project :
  Evaluating root project 'server' using build file '/Users/ishankhare/code/ishan/kotlin-web-server/server/build.gradle'.
  All projects evaluated.
  Selected primary task 'compileKotlin' from project :
  Tasks to be executed: [task ':compileKotlin']
  :compileKotlin (Thread[Task worker for ':',5,main]) started.
  e: java.lang.ArrayIndexOutOfBoundsException
  
  
  &gt; Task :compileKotlin FAILED
  file or directory '/Users/ishankhare/code/ishan/kotlin-web-server/server/src/main/kotlin', not found
  file or directory '/Users/ishankhare/code/ishan/kotlin-web-server/server/src/main/java', not found
  Task ':compileKotlin' is not up-to-date because:
    Task has failed previously.
  All input files are considered out-of-date for incremental task ':compileKotlin'.
  file or directory '/Users/ishankhare/code/ishan/kotlin-web-server/server/src/main/kotlin', not found
  file or directory '/Users/ishankhare/code/ishan/kotlin-web-server/server/src/main/java', not found
  file or directory '/Users/ishankhare/code/ishan/kotlin-web-server/server/src/main/kotlin', not found
  file or directory '/Users/ishankhare/code/ishan/kotlin-web-server/server/src/main/java', not found
  Using Kotlin incremental compilation
  Options for KOTLIN DAEMON: IncrementalCompilationOptions(super=CompilationOptions(compilerMode=INCREMENTAL_COMPILER, targetPlatform=JVM, reportCategories=[0], reportSeverity=2, requestedCompilationResults=[0]), areFileChangesKnown=false, modifiedFiles=null, deletedFiles=null, workingDir=/Users/ishankhare/code/ishan/kotlin-web-server/server/build/kotlin/compileKotlin, customCacheVersionFileName='gradle-format-version.txt', customCacheVersion=4, resultDifferenceFile=/Users/ishankhare/code/ishan/kotlin-web-server/server/build/kotlin/compileKotlin/build-history.bin, friendDifferenceFile=null, usePreciseJavaTracking=false)
  [KOTLIN] deleting /Users/ishankhare/code/ishan/kotlin-web-server/server/build/classes/kotlin/main on error
  [KOTLIN] deleting /Users/ishankhare/code/ishan/kotlin-web-server/server/build/classes/kotlin/main on error
  :compileKotlin (Thread[Task worker for ':',5,main]) completed. Took 0.087 secs.
  
  FAILURE: Build failed with an exception.
  
  * What went wrong:
  Execution failed for task ':compileKotlin'.
  &gt; Internal compiler error. See log for more details
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --debug option to get more log output. Run with --scan to get full insights.
  
  * Get more help at https://help.gradle.org
  
  Deprecated Gradle features were used in this build, making it incompatible with Gradle 5.0.
  Use '--warning-mode all' to show the individual deprecation warnings.
  See https://docs.gradle.org/4.10/userguide/command_line_interface.html#sec:command_line_warnings
  
  BUILD FAILED in 0s
  1 actionable task: 1 executed
  </code></pre>