`Position.point on NoPosition` while compiling sbt 1.0.0-SNAPSHOT with sbt 1.0.0-M6

I’m trying to port sbt/sbt to the new library management API, but I get an exception while compiling mainProj. Here are the versions I use:

  private val ioVersion = "1.0.0-M12"
  private val utilVersion = "1.0.0-M26"
  private val lmVersion = "1.0.0-SNAPSHOT" // (sbt/librarymanagement#124, 74f6a492de82873d925dd4581efe229d2b1f9d30)
  private val zincVersion = "1.0.0-X16-SNAPSHOT" // (sbt/zinc#335, e6d97c34b119670d116df6e4850674ab05c5ca24x)

steps

• Checkout and publishLocal the different modules at the specified commits
• Checkout this commit: https://github.com/Duhemm/sbt/commit/c1a307bd4587b617367c704fb903c6b2fb2bca30
• Make sure you don’t have plugins or something else in your global config
• start sbt
• run compile

problem

The following exception is thrown during compilation:

[error] ## Exception when compiling 77 sources to /Users/martin/Documents/Projects.nosync/Duhemm/sbt/main/target/scala-2.12/classes
[error] Position.point on NoPosition
[error] scala.reflect.internal.util.Position.fail(Position.scala:17)
[error] scala.reflect.internal.util.UndefinedPosition.point(Position.scala:95)
[error] scala.reflect.internal.util.UndefinedPosition.point(Position.scala:90)
[error] scala.tools.nsc.typechecker.TypeDiagnostics$TyperDiagnostics$checkUnused$UnusedPrivates.$anonfun$unusedTerms$4(TypeDiagnostics.scala:593)
[error] scala.tools.nsc.typechecker.TypeDiagnostics$TyperDiagnostics$checkUnused$UnusedPrivates.$anonfun$unusedTerms$4$adapted(TypeDiagnostics.scala:593)
[error] scala.collection.Iterator.exists(Iterator.scala:955)
[error] scala.collection.Iterator.exists$(Iterator.scala:953)
[error] scala.collection.AbstractIterator.exists(Iterator.scala:1417)
[error] scala.collection.IterableLike.exists(IterableLike.scala:76)
[error] scala.collection.IterableLike.exists$(IterableLike.scala:75)
[error] scala.collection.AbstractIterable.exists(Iterable.scala:54)
[error] scala.tools.nsc.typechecker.TypeDiagnostics$TyperDiagnostics$checkUnused$UnusedPrivates.$anonfun$unusedTerms$2(TypeDiagnostics.scala:593)
[error] scala.tools.nsc.typechecker.TypeDiagnostics$TyperDiagnostics$checkUnused$UnusedPrivates.$anonfun$unusedTerms$2$adapted(TypeDiagnostics.scala:591)
[error] scala.collection.TraversableLike.$anonfun$filterImpl$1(TraversableLike.scala:248)
[error] scala.collection.immutable.List.foreach(List.scala:389)
[error] scala.collection.TraversableLike.filterImpl(TraversableLike.scala:247)
[error] scala.collection.TraversableLike.filterImpl$(TraversableLike.scala:245)
[error] scala.collection.AbstractTraversable.filterImpl(Traversable.scala:104)
[error] scala.collection.TraversableLike.filterNot(TraversableLike.scala:267)
[error] scala.collection.TraversableLike.filterNot$(TraversableLike.scala:267)
[error] scala.collection.AbstractTraversable.filterNot(Traversable.scala:104)
[error] scala.tools.nsc.typechecker.TypeDiagnostics$TyperDiagnostics$checkUnused$UnusedPrivates.unusedTerms(TypeDiagnostics.scala:591)
[error] scala.tools.nsc.typechecker.TypeDiagnostics$TyperDiagnostics$checkUnused$.apply(TypeDiagnostics.scala:613)
[error] scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.apply(Analyzer.scala:108)
[error] scala.tools.nsc.Global$GlobalPhase.$anonfun$applyPhase$1(Global.scala:423)
[error] scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:416)
[error] scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.$anonfun$run$1(Analyzer.scala:94)
[error] scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.$anonfun$run$1$adapted(Analyzer.scala:93)
[error] scala.collection.Iterator.foreach(Iterator.scala:929)
[error] scala.collection.Iterator.foreach$(Iterator.scala:929)
[error] scala.collection.AbstractIterator.foreach(Iterator.scala:1417)
[error] scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.run(Analyzer.scala:93)
[error] scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1427)
[error] scala.tools.nsc.Global$Run.compileUnits(Global.scala:1412)
[error] scala.tools.nsc.Global$Run.compileSources(Global.scala:1407)
[error] scala.tools.nsc.Global$Run.compile(Global.scala:1501)
[error] xsbt.CachedCompiler0.run(CompilerInterface.scala:135)
[error] xsbt.CachedCompiler0.run(CompilerInterface.scala:110)
[error] xsbt.CompilerInterface.run(CompilerInterface.scala:33)
[error] sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[error] sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[error] sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[error] java.lang.reflect.Method.invoke(Method.java:498)
[error] sbt.internal.inc.AnalyzingCompiler.call(AnalyzingCompiler.scala:239)
[error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:109)
[error] sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:88)
[error] sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3(MixedAnalyzingCompiler.scala:81)
[error] scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
[error] sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:132)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:72)
[error] sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:115)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:304)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:304)
[error] sbt.internal.inc.Incremental$.doCompile(Incremental.scala:101)
[error] sbt.internal.inc.Incremental$.$anonfun$compile$4(Incremental.scala:82)
[error] sbt.internal.inc.IncrementalCommon.recompileClasses(IncrementalCommon.scala:118)
[error] sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:64)
[error] sbt.internal.inc.Incremental$.$anonfun$compile$3(Incremental.scala:84)
[error] sbt.internal.inc.Incremental$.manageClassfiles(Incremental.scala:129)
[error] sbt.internal.inc.Incremental$.compile(Incremental.scala:75)
[error] sbt.internal.inc.IncrementalCompile$.apply(Compile.scala:70)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:308)
[error] sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:266)
[error] sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:157)
[error] sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:236)
[error] sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:67)
[error] sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:1385)
[error] sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:1367)
[error] scala.Function1.$anonfun$compose$1(Function1.scala:44)
[error] sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:40)
[error] sbt.std.Transform$$anon$4.work(System.scala:64)
[error] sbt.Execute.$anonfun$submit$2(Execute.scala:257)
[error] sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
[error] sbt.Execute.work(Execute.scala:266)
[error] sbt.Execute.$anonfun$submit$1(Execute.scala:257)
[error] sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:167)
[error] sbt.CompletionService$$anon$2.call(CompletionService.scala:32)
[error] java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[error] java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[error] java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[error] java.lang.Thread.run(Thread.java:745)
[error]

expectation

• Compilation errors, but no exception

notes

The exception is buried deep down in scalac, so maybe sbt isn’t the culprit?

No plugins:

In file:/Users/martin/Documents/Projects.nosync/Duhemm/sbt/
        sbt.plugins.IvyPlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        sbt.plugins.JvmPlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        sbt.plugins.CorePlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        sbt.plugins.JUnitXmlReportPlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        sbt.plugins.Giter8TemplatePlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        bintray.BintrayPlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        sbt.contraband.ContrabandPlugin: enabled in testingProj, protocolProj, runProj, mainProj, commandProj
        sbt.contraband.JsonCodecPlugin: enabled in testingProj, protocolProj, commandProj
        com.typesafe.sbt.SbtPgp: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        com.lucidchart.sbt.scalafmt.ScalafmtCorePlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        com.lucidchart.sbt.scalafmt.ScalafmtPlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        PublishBinPlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        ScriptedPlugin: enabled in sbtRoot
        NightlyPlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj
        SbtLauncherPlugin: enabled in bundledLauncherProj
        StatusPlugin: enabled in testingProj, sbtRoot, protocolProj, scriptedSbtProj, stdTaskProj, sbtProj, taskProj, runProj, bundledLauncherProj, mainProj, scriptedPluginProj, coreMacrosProj, mainSettingsProj, actionsProj, commandProj, testAgentProj

sbt version: 1.0.0-M6 cleaning doesn’t solve the issue.

[lrytz]

@olafurpg is there a ticket on https://github.com/scala/bug/issues? It seems other projects are hitting this too https://github.com/lagom/lagom/pull/887#issuecomment-315833219

[Duhemm]

@dwijnand It could very well be. This can be closed anyway, as this is a scalac bug.