title: Java 8 compiler error - how to get more information?
body: <p>I played around with Java 8 ea b72, but I get a compiler error. Is there a way to get more information from javac, e.g. the file list it is currently working on? If I had a general idea where to look I might be able to find a work-around until the issue is fixed.</p>
  
  <p>Just for the record, here is the stack-trace (it looks similar if compiled outside of IntelliJ IDEA, BTW):</p>
  
  <pre><code>An exception has occurred in the compiler (1.8.0-ea). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport)  after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report.  Thank you.
  java.lang.AssertionError: arraycode A
      at com.sun.tools.javac.jvm.Code.arraycode(Code.java:297)
      at com.sun.tools.javac.jvm.Gen.makeNewArray(Gen.java:1827)
      at com.sun.tools.javac.jvm.Gen.visitNewArray(Gen.java:1800)
      at com.sun.tools.javac.tree.JCTree$JCNewArray.accept(JCTree.java:1482)
      at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:893)
      at com.sun.tools.javac.jvm.Gen.genArgs(Gen.java:912)
      at com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1746)
      at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1391)
      at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:893)
      at com.sun.tools.javac.jvm.Gen.visitReturn(Gen.java:1715)
      at com.sun.tools.javac.tree.JCTree$JCReturn.accept(JCTree.java:1310)
      at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:683)
      at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:718)
      at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:704)
      at com.sun.tools.javac.jvm.Gen.genStats(Gen.java:755)
      at com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1090)
      at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:835)
      at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:683)
      at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:718)
      at com.sun.tools.javac.jvm.Gen.genMethod(Gen.java:968)
      at com.sun.tools.javac.jvm.Gen.visitMethodDef(Gen.java:941)
      at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:723)
      at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:683)
      at com.sun.tools.javac.jvm.Gen.genClass(Gen.java:2310)
      at com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:751)
      at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1545)
      at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1509)
      at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:907)
      at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:866)
      at com.sun.tools.javac.main.Main.compile(Main.java:506)
      at com.sun.tools.javac.main.Main.compile(Main.java:365)
      at com.sun.tools.javac.main.Main.compile(Main.java:354)
      at com.sun.tools.javac.main.Main.compile(Main.java:345)
      at com.sun.tools.javac.Main.compile(Main.java:94)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:477)
      at org.codehaus.plexus.compiler.javac.JavacCompiler.compileInProcess0(JavacCompiler.java:551)
      at org.codehaus.plexus.compiler.javac.JavacCompiler.compileInProcess(JavacCompiler.java:526)
      at org.codehaus.plexus.compiler.javac.JavacCompiler.compile(JavacCompiler.java:167)
      at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:678)
      at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128)
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
      at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
      at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
      at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
      at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
      at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:477)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
      at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:477)
      at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
  
  
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:213)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
      at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
      at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
      at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
      at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
      at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:477)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
      at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:477)
      at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
  </code></pre>