Runtime exception: `exception caught when loading module class Quoted$`

[michelou]

minimized code

Compile and run example dotty/run-staging/quote-var.scala.

> dotc -d c:\temp\classes tests\run-staging\quote-var.scala

> dir c:\Temp\classes | findstr Test
11.12.2019  18:12             2 739 Test$$anon$1.class
11.12.2019  18:12             6 398 Test$.class
11.12.2019  18:12             4 028 Test$Var$.class
11.12.2019  18:12               528 Test$Var.class
11.12.2019  18:12               546 Test.class
11.12.2019  18:12             2 629 Test.tasty

> dotr -with-compiler  -cp c:\temp\classes Test
exception caught when loading module class Quoted$: class dotty.tools.dotc.reporting.diagnostic.messages$Error at ?: not found: \drone\src\library\src\scala\internal\Quoted.scala
[..(see stack trace below)..]

Successful execution should print the string "xyz".

Stack trace

exception caught when loading module class Quoted$: class dotty.tools.dotc.reporting.diagnostic.messages$Error at ?: not found: \drone\src\library\src\scala\internal\Quoted.scala
Exception in thread "main" class dotty.tools.dotc.reporting.diagnostic.messages$Error at ?: not found: \drone\src\library\src\scala\internal\Quoted.scala
        at dotty.tools.dotc.reporting.Reporting.error(Reporter.scala:135)
        at dotty.tools.dotc.core.Contexts$Context.error(Contexts.scala:75)
        at dotty.tools.dotc.CompilationUnit$.apply(CompilationUnit.scala:93)
        at dotty.tools.dotc.core.Contexts$Context.withSource(Contexts.scala:471)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.sourceChangeContext(TreeUnpickler.scala:1346)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.processPackage(TreeUnpickler.scala:705)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.indexStats(TreeUnpickler.scala:690)
        at dotty.tools.dotc.core.tasty.TreeUnpickler.enter(TreeUnpickler.scala:98)
        at dotty.tools.dotc.core.tasty.DottyUnpickler.enter(DottyUnpickler.scala:54)
        at dotty.tools.dotc.core.classfile.ClassfileParser.unpickleTASTY$1(ClassfileParser.scala:748)
        at dotty.tools.dotc.core.classfile.ClassfileParser.unpickleOrParseInnerClasses(ClassfileParser.scala:812)
        at dotty.tools.dotc.core.classfile.ClassfileParser.parseClass(ClassfileParser.scala:163)
        at dotty.tools.dotc.core.classfile.ClassfileParser.run(ClassfileParser.scala:88)
        at dotty.tools.dotc.core.ClassfileLoader.load(SymbolLoaders.scala:400)
        at dotty.tools.dotc.core.ClassfileLoader.doComplete(SymbolLoaders.scala:395)
        at dotty.tools.dotc.core.SymbolLoader$$anon$1.doComplete(SymbolLoaders.scala:321)
        at dotty.tools.dotc.core.SymbolLoader.complete(SymbolLoaders.scala:340)
        at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:257)
        at dotty.tools.dotc.core.Denotations$Denotation.completeInfo$1(Denotations.scala:182)
        at dotty.tools.dotc.core.Denotations$Denotation.info(Denotations.scala:184)
        at dotty.tools.dotc.core.SymDenotations$SymDenotation.ensureCompleted(SymDenotations.scala:397)
        at dotty.tools.dotc.core.SymDenotations$SymDenotation.flags(SymDenotations.scala:156)
        at dotty.tools.dotc.core.SymDenotations$ModuleCompleter.complete(SymDenotations.scala:2268)
        at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:257)
        at dotty.tools.dotc.core.Denotations$Denotation.completeInfo$1(Denotations.scala:182)
        at dotty.tools.dotc.core.Denotations$Denotation.info(Denotations.scala:184)
        at dotty.tools.dotc.core.Denotations$Denotation.requiredClass(Denotations.scala:338)
        at dotty.tools.dotc.core.Definitions.InternalQuoted_QuoteTypeTagAnnot(Definitions.scala:666)
        at dotty.tools.dotc.core.quoted.PickledQuotes$$anon$1.apply(PickledQuotes.scala:56)
        at dotty.tools.dotc.core.quoted.PickledQuotes$.dotty$tools$dotc$core$quoted$PickledQuotes$$$dealiasTypeTags(PickledQuotes.scala:61)
        at dotty.tools.dotc.core.quoted.PickledQuotes$$anon$2.transform(PickledQuotes.scala:73)
        at dotty.tools.dotc.ast.Trees$Instance$TreeMap.transform(Trees.scala:1294)
        at dotty.tools.dotc.core.quoted.PickledQuotes$$anon$2.transform(PickledQuotes.scala:73)
        at dotty.tools.dotc.core.quoted.PickledQuotes$.unpickleExpr(PickledQuotes.scala:76)
        at dotty.tools.dotc.tastyreflect.ReflectionCompilerInterface.unpickleExpr(ReflectionCompilerInterface.scala:38)
        at scala.runtime.quoted.Unpickler$.unpickleExpr$direct(Unpickler.scala:16)
        at Test$$anon$1.update(quote-var.scala:18)
        at Test$.test1$$anonfun$4$$anonfun$3$1$$anonfun$1(quote-var.scala:28)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readHole(TreeUnpickler.scala:1291)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readLengthTerm$1(TreeUnpickler.scala:1202)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1210)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readLengthTerm$1(TreeUnpickler.scala:1115)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1210)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readIndexedStat(TreeUnpickler.scala:947)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readIndexedStats$$anonfun$1(TreeUnpickler.scala:986)
        at dotty.tools.tasty.TastyReader.until(TastyReader.scala:125)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readIndexedStats(TreeUnpickler.scala:986)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readStats(TreeUnpickler.scala:990)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readLengthTerm$1(TreeUnpickler.scala:1103)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1210)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readLengthTerm$1(TreeUnpickler.scala:1115)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1210)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1006)
        at dotty.tools.dotc.core.tasty.TreeUnpickler.unpickle(TreeUnpickler.scala:107)
        at dotty.tools.dotc.core.tasty.DottyUnpickler.computeRootTrees(DottyUnpickler.scala:59)
        at dotty.tools.dotc.ast.tpd$TreeProvider.rootTrees(tpd.scala:1107)
        at dotty.tools.dotc.core.tasty.DottyUnpickler.rootTrees(DottyUnpickler.scala:41)
        at dotty.tools.dotc.ast.tpd$TreeProvider.tree(tpd.scala:1111)
        at dotty.tools.dotc.core.tasty.DottyUnpickler.tree(DottyUnpickler.scala:41)
        at dotty.tools.dotc.core.quoted.PickledQuotes$.unpickle(PickledQuotes.scala:131)
        at dotty.tools.dotc.core.quoted.PickledQuotes$.unpickleExpr(PickledQuotes.scala:66)
        at dotty.tools.dotc.tastyreflect.ReflectionCompilerInterface.unpickleExpr(ReflectionCompilerInterface.scala:38)
        at scala.runtime.quoted.Unpickler$.unpickleExpr$direct(Unpickler.scala:16)
        at Test$.test1$$anonfun$1(quote-var.scala:30)
        at Test$Var$.apply$$anonfun$3$2$$anonfun$1(quote-var.scala:19)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readHole(TreeUnpickler.scala:1291)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readLengthTerm$1(TreeUnpickler.scala:1202)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1210)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readLengthTerm$1(TreeUnpickler.scala:1115)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1210)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readLengthTerm$1(TreeUnpickler.scala:1104)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1210)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readLengthTerm$1(TreeUnpickler.scala:1115)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1210)
        at dotty.tools.dotc.core.tasty.TreeUnpickler$TreeReader.readTerm(TreeUnpickler.scala:1006)
        at dotty.tools.dotc.core.tasty.TreeUnpickler.unpickle(TreeUnpickler.scala:107)
        at dotty.tools.dotc.core.tasty.DottyUnpickler.computeRootTrees(DottyUnpickler.scala:59)
        at dotty.tools.dotc.ast.tpd$TreeProvider.rootTrees(tpd.scala:1107)
        at dotty.tools.dotc.core.tasty.DottyUnpickler.rootTrees(DottyUnpickler.scala:41)
        at dotty.tools.dotc.ast.tpd$TreeProvider.tree(tpd.scala:1111)
        at dotty.tools.dotc.core.tasty.DottyUnpickler.tree(DottyUnpickler.scala:41)
        at dotty.tools.dotc.core.quoted.PickledQuotes$.unpickle(PickledQuotes.scala:131)
        at dotty.tools.dotc.core.quoted.PickledQuotes$.unpickleExpr(PickledQuotes.scala:66)
        at dotty.tools.dotc.tastyreflect.ReflectionCompilerInterface.unpickleExpr(ReflectionCompilerInterface.scala:38)
        at scala.runtime.quoted.Unpickler$.unpickleExpr$direct(Unpickler.scala:16)
        at Test$Var$.apply(quote-var.scala:22)
        at Test$.test1(quote-var.scala:31)
        at Test$.$anonfun$1(quote-var.scala:36)
        at scala.quoted.staging.package$.run$$anonfun$1(staging.scala:19)
        at scala.quoted.staging.QuoteCompiler$QuotedFrontend.runOn$$anonfun$1(QuoteCompiler.scala:71)
        at scala.collection.immutable.List.flatMap(List.scala:265)
        at scala.quoted.staging.QuoteCompiler$QuotedFrontend.runOn(QuoteCompiler.scala:84)
        at dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:161)
        at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
        at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
        at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
        at dotty.tools.dotc.Run.runPhases$5(Run.scala:171)
        at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:179)
        at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
        at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:65)
        at dotty.tools.dotc.Run.compileUnits(Run.scala:186)
        at dotty.tools.dotc.Run.compileUnits(Run.scala:128)
        at scala.quoted.staging.QuoteCompiler$ExprRun.compileExpr(QuoteCompiler.scala:104)
        at scala.quoted.staging.QuoteDriver.run(QuoteDriver.scala:37)
        at scala.quoted.staging.Toolbox$$anon$1.run(Toolbox.scala:36)
        at scala.quoted.staging.package$.run(staging.scala:19)
        at Test$.main(quote-var.scala:37)
        at Test.main(quote-var.scala)

Environment

> ver
 
Microsoft Windows [version 10.0.18362.476]
 
> java -version
openjdk version "1.8.0_232"
OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_232-b09)
OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.232-b09, mixed mode)
 
> dotc -version
Dotty compiler version 0.21.0-bin-20191211-731ee3c-NIGHTLY-git-731ee3c -- Copyright 2002-2019, LAMP/EPFL

Full Java command behind dotc.bat
(NB. Starting with version 0.21 jar file tasty-core_XXX.jar is part of the class path) :

"C:\opt\jdk-1.8.0_232-b09\bin\java.exe" -Xmx2048m -XX:ReservedCodeCacheSize=2048m -XX:MaxMetaspaceSize=1024m   -classpath C:\opt\dotty-0.20.0-RC1\lib\scala-library-2.13.1.jar;C:\opt\dotty-0.20.0-RC1\lib\dotty-library_0.21-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar;C:\opt\dotty-0.20.0-RC1\lib\scala-asm-7.0.0-scala-1.jar;C:\opt\dotty-0.20.0-RC1\lib\compiler-interface-1.2.5.jar;C:\opt\dotty-0.20.0-RC1\lib\dotty-interfaces-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar;C:\opt\dotty-0.20.0-RC1\lib\dotty-compiler_0.21-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar;C:\opt\dotty-0.20.0-RC1\lib\tasty-core_0.21-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar;C:\opt\dotty-0.20.0-RC1\lib\dotty-staging_0.21-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar;C:\opt\dotty-0.20.0-RC1\lib\jline-reader-3.9.0.jar;C:\opt\dotty-0.20.0-RC1\lib\jline-terminal-3.9.0.jar;C:\opt\dotty-0.20.0-RC1\lib\jline-terminal-jna-3.9.0.jar;C:\opt\dotty-0.20.0-RC1\lib\jna-4.2.2.jar -Dscala.usejavacp=true dotty.tools.dotc.Main
-d c:\temp\classes tests\run-staging\quote-var.scala

Full Java command behind dotr.bat
(NB. Starting with version 0.21 jar file tasty-core_XXX.jar is part of the class path with Dotty option -with-compiler) :

"C:\opt\jdk-1.8.0_232-b09\bin\java.exe"  -classpath "C:\opt\dotty-0.20.0-RC1\lib\dotty-library_0.21-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar;C:\opt\dotty-0.20.0-RC1\lib\scala-library-2.13.1.jar;c:\temp\classes;C:\opt\dotty-0.20.0-RC1\lib\dotty-compiler_0.21-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar;C:\opt\dotty-0.20.0-RC1\lib\dotty-interfaces-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar;C:\opt\dotty-0.20.0-RC1\lib\scala-asm-7.0.0-scala-1.jar;C:\opt\dotty-0.20.0-RC1\lib\tasty-core_0.21-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar;C:\opt\dotty-0.20.0-RC1\lib\dotty-staging_0.21-0.21.0-bin-20191211-731ee3c-NIGHTLY.jar"   Test

[michelou]

@nicolasstucki By the way examples run-staging/quote-var.scala and run-staging/i4044b.scala are almost identical. Does it make sense to keep both ?!

[smarter]

I just merged #7691 which fixed a similar issue, which version of dotty are you using? Can you check using the latest master ?

[michelou]

As mentioned in the above section "Environment" I'm using version 0.21.0-bin-20191211-731ee3c-NIGHTLY-git-731ee3c available from the Maven repository.

[smarter]

ok, try again tomorrow when the next nightly is published :).

[michelou]

That's fine. Take care (it gets dark !).

[michelou]

@smarter Thanks for merge #7691.

I confirm that example quote-var.scala now works with 20191212-debe978 😊

> dotc -version
Dotty compiler version 0.21.0-bin-20191212-debe978-NIGHTLY-git-debe978 -- Copyright 2002-2019, LAMP/EPFL
 
> dotc -d c:\temp\classes tests\run-staging\quote-var.scala
 
> dotr -with-compiler  -cp c:\temp\classes Test
xyz