A DESCRIPTION OF THE PROBLEM :
Information:Kotlin: kotlinc-jvm 1.3.61 (JRE 1.8.0_31-b13)
Information:java: 编译器 (1.8.0_31) 中出现异常错误。 如果在 Bug Parade 中没有找到该错误, 请在 Java Developer Connection (http://java.sun.com/webapps/bugreport) 中建立 Bug。请在报告中附上您的程序和以下诊断信息。谢谢。
Information:java: java.lang.NullPointerException
Information:java: at com.sun.tools.javac.code.Types.isConvertible(Types.java:290)
Information:java: at com.sun.tools.javac.comp.Check.assertConvertible(Check.java:922)
Information:java: at com.sun.tools.javac.comp.Check.checkMethod(Check.java:876)
Information:java: at com.sun.tools.javac.comp.Attr.checkMethod(Attr.java:3838)
Information:java: at com.sun.tools.javac.comp.Attr.checkIdInternal(Attr.java:3615)
Information:java: at com.sun.tools.javac.comp.Attr.checkMethodIdInternal(Attr.java:3522)
Information:java: at com.sun.tools.javac.comp.Attr.checkMethodId(Attr.java:3501)
Information:java: at com.sun.tools.javac.comp.Attr.checkId(Attr.java:3488)
Information:java: at com.sun.tools.javac.comp.Attr.visitSelect(Attr.java:3370)
Information:java: at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1897)
Information:java: at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:607)
Information:java: at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1843)
Information:java: at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465)
Information:java: at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:649)
Information:java: at com.sun.tools.javac.comp.Attr.visitVarDef(Attr.java:1093)
Information:java: at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:852)
Information:java: at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:676)
Information:java: at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:692)
Information:java: at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1142)
Information:java: at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
Information:java: at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1035)
Information:java: at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
Information:java: at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4342)
Information:java: at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4252)
Information:java: at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4181)
Information:java: at com.sun.tools.javac.comp.Attr.attrib(Attr.java:4156)
Information:java: at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1248)
Information:java: at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:901)
Information:java: at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:860)
Information:java: at com.sun.tools.javac.main.Main.compile(Main.java:523)
Information:java: at com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129)
Information:java: at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138)
Information:java: at org.jetbrains.jps.javac.JavacMain.compile(JavacMain.java:207)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.compileJava(JavaBuilder.java:486)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.compile(JavaBuilder.java:338)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.doBuild(JavaBuilder.java:263)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.build(JavaBuilder.java:216)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runModuleLevelBuilders(IncProjectBuilder.java:1328)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runBuildersForChunk(IncProjectBuilder.java:1006)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildTargetsChunk(IncProjectBuilder.java:1073)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunkIfAffected(IncProjectBuilder.java:967)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunks(IncProjectBuilder.java:796)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:378)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:178)
Information:java: at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:140)
Information:java: at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:297)
Information:java: at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:130)
Information:java: at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:232)
Information:java: at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler$$Lambda$17/341182943.run(Unknown Source)
Information:java: at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
Information:java: at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
Information:java: at java.lang.Thread.run(Unknown Source)

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