Dotty: Cyclic reference involving class, when using java packages
When inter-oping with java libraries I get a compiler bug. I have attached a minimal repo as an attachment. The code is as straightforward as borrowed from here: https://github.com/knowm/XChange/blob/b6ed6d1d2a/xchange-stream-btcmarkets/src/test/java/info/bitrich/xchangestream/btcmarkets/BTCMarketsManualExample.java#L16-L41
A more simple scastie repro: https://scastie.scala-lang.org/wmyqtC1KRQOiUG64Kicb0A
This doesn't happen with scala though.
dottyVersion = "0.26.0-RC1"
Output with -Ydebug-error
[error] Cyclic reference involving class LimitOrder
[warn] one warning found
[error] Cyclic reference involving class LimitOrder
java.lang.Exception: Stack trace
at java.base/java.lang.Thread.dumpStack(Thread.java:1379)
at dotty.tools.dotc.report$.error(report.scala:72)
at dotty.tools.dotc.report$.error(report.scala:75)
at dotty.tools.dotc.typer.ErrorReporting$.errorType(ErrorReporting.scala:34)
| => cat dotty.tools.dotc.typer.ErrorReporting$.errorTree(ErrorReporting.scala:26)
at dotty.tools.dotc.typer.Typer.adapt(Typer.scala:2885)
at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2553)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2554)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2557)
at dotty.tools.dotc.typer.Typer.typedNamedArg(Typer.scala:800)
at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2429)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2484)
at dotty.tools.dotc.typer.ProtoTypes$FunProto.$anonfun$2(ProtoTypes.scala:337)
at dotty.tools.dotc.typer.ProtoTypes$FunProto.cacheTypedArg(ProtoTypes.scala:293)
at dotty.tools.dotc.typer.ProtoTypes$FunProto.typedArg(ProtoTypes.scala:338)
at dotty.tools.dotc.typer.Applications$ApplyToUntyped.typedArg(Applications.scala:818)
at dotty.tools.dotc.typer.Applications$ApplyToUntyped.typedArg(Applications.scala:818)
at dotty.tools.dotc.typer.Applications$Application.addTyped$1(Applications.scala:540)
at dotty.tools.dotc.typer.Applications$Application.matchArgs(Applications.scala:611)
at dotty.tools.dotc.typer.Applications$Application.init(Applications.scala:363)
at dotty.tools.dotc.typer.Applications$TypedApply.<init>(Applications.scala:713)
at dotty.tools.dotc.typer.Applications$ApplyToUntyped.<init>(Applications.scala:817)
at dotty.tools.dotc.typer.Applications.ApplyTo(Applications.scala:1026)
at dotty.tools.dotc.typer.Applications.ApplyTo$(Applications.scala:233)
at dotty.tools.dotc.typer.Typer.ApplyTo(Typer.scala:91)
at dotty.tools.dotc.ast.Trees$Instance.applyOverloaded(Trees.scala:1585)
at dotty.tools.dotc.ast.Trees$Instance.resolveConstructor(Trees.scala:1591)
at dotty.tools.dotc.core.Annotations$Annotation$.deferredResolve$$anonfun$1(Annotations.scala:170)
at dotty.tools.dotc.core.Annotations$.dotty$tools$dotc$core$Annotations$$anon$2$$_$$lessinit$greater$$anonfun$2(Annotations.scala:155)
at dotty.tools.dotc.core.Annotations$LazyAnnotation.tree(Annotations.scala:79)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotArg$$anonfun$2(ClassfileParser.scala:531)
at scala.Option.map(Option.scala:242)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotArg(ClassfileParser.scala:531)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotArg$$anonfun$3(ClassfileParser.scala:520)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotArg$$anonfun$adapted$1(ClassfileParser.scala:523)
at scala.collection.immutable.Range.foreach(Range.scala:190)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotArg(ClassfileParser.scala:523)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotation$$anonfun$3(ClassfileParser.scala:554)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotation$$anonfun$adapted$1(ClassfileParser.scala:558)
at scala.collection.immutable.Range.foreach(Range.scala:190)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotation(ClassfileParser.scala:558)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotations$2$$anonfun$1(ClassfileParser.scala:649)
at dotty.runtime.function.JFunction1$mcVI$sp.apply(JFunction1$mcVI$sp.java:12)
at scala.collection.immutable.Range.foreach(Range.scala:190)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAnnotations$1(ClassfileParser.scala:653)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAttribute$3(ClassfileParser.scala:607)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAttributes$$anonfun$1(ClassfileParser.scala:658)
at dotty.runtime.function.JFunction1$mcVI$sp.apply(JFunction1$mcVI$sp.java:12)
at scala.collection.immutable.Range.foreach(Range.scala:190)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAttributes(ClassfileParser.scala:658)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseClass(ClassfileParser.scala:190)
at dotty.tools.dotc.core.classfile.ClassfileParser.run(ClassfileParser.scala:90)
at dotty.tools.dotc.core.ClassfileLoader.load(SymbolLoaders.scala:402)
at dotty.tools.dotc.core.ClassfileLoader.doComplete(SymbolLoaders.scala:397)
at dotty.tools.dotc.core.SymbolLoader.complete(SymbolLoaders.scala:342)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:166)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeOnce(SymDenotations.scala:344)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.unforcedDecls(SymDenotations.scala:368)
at dotty.tools.dotc.core.SymDenotations$ClassDenotation.typeParamsFromDecls(SymDenotations.scala:1637)
at dotty.tools.dotc.core.SymDenotations$ClassDenotation.typeParams(SymDenotations.scala:1650)
at dotty.tools.dotc.core.classfile.ClassfileParser$$anon$3.apply(ClassfileParser.scala:38)
at dotty.tools.dotc.core.classfile.ClassfileParser$$anon$3.apply(ClassfileParser.scala:37)
at scala.collection.immutable.List.mapConserve(List.scala:472)
at dotty.tools.dotc.core.classfile.ClassfileParser$$anon$3.apply(ClassfileParser.scala:47)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseAttributes(ClassfileParser.scala:660)
at dotty.tools.dotc.core.classfile.ClassfileParser.parseClass(ClassfileParser.scala:190)
at dotty.tools.dotc.core.classfile.ClassfileParser.run(ClassfileParser.scala:90)
at dotty.tools.dotc.core.ClassfileLoader.load(SymbolLoaders.scala:402)
at dotty.tools.dotc.core.ClassfileLoader.doComplete(SymbolLoaders.scala:397)
at dotty.tools.dotc.core.SymbolLoader.complete(SymbolLoaders.scala:342)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:166)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeOnce(SymDenotations.scala:344)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.isAbsent(SymDenotations.scala:536)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.isAccessibleFrom(SymDenotations.scala:834)
at dotty.tools.dotc.core.Denotations$SingleDenotation.accessibleFrom(Denotations.scala:614)
at dotty.tools.dotc.typer.Typer.selection$3(Typer.scala:202)
at dotty.tools.dotc.typer.Typer.recur$1(Typer.scala:233)
at dotty.tools.dotc.typer.Typer.namedImportRef$1(Typer.scala:240)
at dotty.tools.dotc.typer.Typer.loop$2(Typer.scala:376)
at dotty.tools.dotc.typer.Typer.findRefRecur$1(Typer.scala:398)
at dotty.tools.dotc.typer.Typer.findRef(Typer.scala:401)
at dotty.tools.dotc.typer.Typer.typedIdent(Typer.scala:471)
at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2392)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2483)
at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2553)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2554)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2557)
at dotty.tools.dotc.typer.Namer.typedAheadType$$anonfun$1(Namer.scala:1220)
at dotty.tools.dotc.typer.Namer.typedAhead(Namer.scala:1212)
at dotty.tools.dotc.typer.Namer.typedAheadType(Namer.scala:1220)
at dotty.tools.dotc.typer.Namer.valOrDefDefSig(Namer.scala:1423)
at dotty.tools.dotc.typer.Namer.defDefSig(Namer.scala:1475)
at dotty.tools.dotc.typer.Namer$Completer.typeSig(Namer.scala:684)
at dotty.tools.dotc.typer.Namer$Completer.completeInCreationContext(Namer.scala:801)
at dotty.tools.dotc.typer.Namer$Completer.complete(Namer.scala:712)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:166)
at dotty.tools.dotc.core.Denotations$Denotation.completeInfo$1(Denotations.scala:188)
at dotty.tools.dotc.core.Denotations$Denotation.info(Denotations.scala:190)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.ensureCompleted(SymDenotations.scala:352)
at dotty.tools.dotc.typer.Typer.retrieveSym(Typer.scala:2365)
at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2390)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2483)
at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2553)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2554)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2557)
at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2579)
at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2627)
at dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2081)
at dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2411)
at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2415)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2483)
at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2553)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2554)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2557)
at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2579)
at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2627)
at dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:2207)
at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2455)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2484)
at dotty.tools.dotc.typer.Typer.op$1(Typer.scala:2553)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2554)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2557)
at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2671)
at dotty.tools.dotc.typer.FrontEnd.liftedTree1$1(FrontEnd.scala:78)
at dotty.tools.dotc.typer.FrontEnd.typeCheck$$anonfun$1(FrontEnd.scala:83)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.typer.FrontEnd.monitor(FrontEnd.scala:42)
at dotty.tools.dotc.typer.FrontEnd.typeCheck(FrontEnd.scala:84)
at dotty.tools.dotc.typer.FrontEnd.runOn$$anonfun$3(FrontEnd.scala:119)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:333)
at dotty.tools.dotc.typer.FrontEnd.runOn(FrontEnd.scala:119)
at dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:181)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
at dotty.tools.dotc.Run.runPhases$5(Run.scala:191)
at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:199)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:64)
at dotty.tools.dotc.Run.compileUnits(Run.scala:206)
at dotty.tools.dotc.Run.compileSources(Run.scala:143)
at dotty.tools.dotc.Run.compile(Run.scala:125)
at dotty.tools.dotc.Driver.doCompile(Driver.scala:38)
at dotty.tools.dotc.Driver.process(Driver.scala:195)
at dotty.tools.dotc.Main.process(Main.scala)
at xsbt.CachedCompilerImpl.run(CachedCompilerImpl.java:69)
at xsbt.CompilerInterface.run(CompilerInterface.java:41)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at sbt.internal.inc.AnalyzingCompiler.call(AnalyzingCompiler.scala:248)
at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:122)
at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:95)
at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:91)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:186)
at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3(MixedAnalyzingCompiler.scala:82)
at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3$adapted(MixedAnalyzingCompiler.scala:77)
at sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:215)
at sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:77)
at sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:146)
at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:343)
at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:343)
at sbt.internal.inc.Incremental$.doCompile(Incremental.scala:120)
at sbt.internal.inc.Incremental$.$anonfun$compile$4(Incremental.scala:100)
at sbt.internal.inc.IncrementalCommon.recompileClasses(IncrementalCommon.scala:180)
at sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:98)
at sbt.internal.inc.Incremental$.$anonfun$compile$3(Incremental.scala:102)
at sbt.internal.inc.Incremental$.manageClassfiles(Incremental.scala:155)
at sbt.internal.inc.Incremental$.compile(Incremental.scala:92)
at sbt.internal.inc.IncrementalCompile$.apply(Compile.scala:75)
at sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:348)
at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:301)
at sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:168)
at sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:248)
at sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:74)
at sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:1765)
at sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:1738)
at scala.Function1.$anonfun$compose$1(Function1.scala:49)
at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
at sbt.std.Transform$$anon$4.work(Transform.scala:67)
at sbt.Execute.$anonfun$submit$2(Execute.scala:281)
at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:19)
at sbt.Execute.work(Execute.scala:290)
at sbt.Execute.$anonfun$submit$1(Execute.scala:281)
at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at java.base/java.lang.Thread.run(Thread.java:832)
[error] one error found
[
[error] one error found
[error] (Compile / compileIncremental) Compilation failed
[error] Total time: 2 s, completed 4 Aug 2020, 9:29:59 pm
Expectation
Compilation succeeds.
Swoorup
All 5 comments
This is the problematic class: https://github.com/knowm/XChange/blob/develop/xchange-core/src/main/java/org/knowm/xchange/dto/trade/LimitOrder.java#L22
Jasper-M
on 4 Aug 2020
👍2
This might be of interest: https://github.com/scala/bug/issues/3809
Subsequent commit to patch the issue in Scala previous versions: https://github.com/scala/scala/commit/ae6da154c1cd0795494bbc5e4f7f0bba4317aa42
Swoorup
on 5 Aug 2020
More isolated bug repro thanks to @smarter
// DerivedClass.java
package CyclicRefAnnArray;
import java.lang.*;
@interface BaseClassAnn {
Type[] value();
@interface Type {
Class<?> value();
}
}
@BaseClassAnn({
@BaseClassAnn.Type(value=DerivedClass.class)
})
abstract class BaseClass {}
class DerivedClass extends BaseClass {}
// main.scala
package CyclicRefAnnArray;
object Main {
def oops: DerivedClass = ???
def main(args: Array[String]): Unit = {
println("ok")
}
}
Compile and run with: javac -d output *.java; dotc -classpath output/ main.scala
Swoorup
on 10 Aug 2020
👍1
I'm still getting this with 3.0.0-M2, while trying to port vulcan to Dotty.
The Java library I'm using is "org.apache.avro" % "avro" % "1.10.0". The specific file is at https://github.com/apache/avro/blob/master/lang/java/avro/src/main/java/org/apache/avro/SchemaBuilder.java
A minimal reproduction is
def oops = org.apache.avro.SchemaBuilder.builder().fixed("foo")
scastie reproduction (3.0.0-M1)
Output with -Ydebug-error:
sbt:vx1ka5jhtoax0guv87vfkq> compile
[info] Compiling 1 Scala source to /Users/benplom/Downloads/Vx1Ka5jhToaX0guV87vFkQ/target/scala-3.0.0-M2/classes ...
exception caught when loading class FixedBuilder: Cyclic reference involving class FixedBuilder
java.lang.Exception: Stack trace
at java.base/java.lang.Thread.dumpStack(Thread.java:1379)
at dotty.tools.dotc.report$.error(report.scala:72)
at dotty.tools.dotc.report$.error(report.scala:75)
| => vat dotty.tools.dotc.typer.ErrorReporting$.errorType(ErrorReporting.scala:38)
at dotty.tools.dotc.typer.ErrorReporting$.errorTree(ErrorReporting.scala:30)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2535)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2601)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2605)
at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2720)
at dotty.tools.dotc.typer.Typer.typeSelectOnTerm$1(Typer.scala:549)
at dotty.tools.dotc.typer.Typer.typedSelect(Typer.scala:574)
at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2441)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2531)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2601)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2605)
at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2720)
at dotty.tools.dotc.typer.Applications.typedFunPart$$anonfun$1(Applications.scala:852)
at dotty.tools.dotc.typer.Typer.tryEither(Typer.scala:2728)
at dotty.tools.dotc.typer.Applications.typedFunPart(Applications.scala:861)
at dotty.tools.dotc.typer.Applications.typedFunPart$(Applications.scala:236)
at dotty.tools.dotc.typer.Typer.typedFunPart(Typer.scala:92)
at dotty.tools.dotc.typer.Applications.realApply$1(Applications.scala:873)
at dotty.tools.dotc.typer.Applications.typedApply(Applications.scala:1026)
at dotty.tools.dotc.typer.Applications.typedApply$(Applications.scala:236)
at dotty.tools.dotc.typer.Typer.typedApply(Typer.scala:92)
at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2471)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2532)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2601)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2605)
at dotty.tools.dotc.typer.Namer.typedAheadExpr$$anonfun$1(Namer.scala:1232)
at dotty.tools.dotc.typer.Namer.typedAhead(Namer.scala:1219)
at dotty.tools.dotc.typer.Namer.typedAheadExpr(Namer.scala:1232)
at dotty.tools.dotc.typer.Namer.rhsType$1$$anonfun$1(Namer.scala:1367)
at dotty.tools.dotc.typer.PrepareInlineable$.dropInlineIfError(PrepareInlineable.scala:216)
at dotty.tools.dotc.typer.Namer.rhsType$2(Namer.scala:1367)
at dotty.tools.dotc.typer.Namer.cookedRhsType$1(Namer.scala:1378)
at dotty.tools.dotc.typer.Namer.lhsType$1(Namer.scala:1379)
at dotty.tools.dotc.typer.Namer.inferredType$1(Namer.scala:1390)
at dotty.tools.dotc.typer.Namer.valOrDefDefSig(Namer.scala:1398)
at dotty.tools.dotc.typer.Namer.defDefSig(Namer.scala:1483)
at dotty.tools.dotc.typer.Namer$Completer.typeSig(Namer.scala:684)
at dotty.tools.dotc.typer.Namer$Completer.completeInCreationContext(Namer.scala:801)
at dotty.tools.dotc.typer.Namer$Completer.complete(Namer.scala:712)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.completeFrom(SymDenotations.scala:166)
at dotty.tools.dotc.core.Denotations$Denotation.completeInfo$1(Denotations.scala:188)
at dotty.tools.dotc.core.Denotations$Denotation.info(Denotations.scala:190)
at dotty.tools.dotc.core.SymDenotations$SymDenotation.ensureCompleted(SymDenotations.scala:370)
at dotty.tools.dotc.typer.Typer.retrieveSym(Typer.scala:2413)
at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2438)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2531)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2601)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2605)
at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2627)
at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2676)
at dotty.tools.dotc.typer.Typer.typedClassDef(Typer.scala:2131)
at dotty.tools.dotc.typer.Typer.typedTypeOrClassDef$2(Typer.scala:2459)
at dotty.tools.dotc.typer.Typer.typedNamed$1(Typer.scala:2463)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2531)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2601)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2605)
at dotty.tools.dotc.typer.Typer.traverse$1(Typer.scala:2627)
at dotty.tools.dotc.typer.Typer.typedStats(Typer.scala:2676)
at dotty.tools.dotc.typer.Typer.typedPackageDef(Typer.scala:2256)
at dotty.tools.dotc.typer.Typer.typedUnnamed$1(Typer.scala:2503)
at dotty.tools.dotc.typer.Typer.typedUnadapted(Typer.scala:2532)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2601)
at dotty.tools.dotc.typer.Typer.typed(Typer.scala:2605)
at dotty.tools.dotc.typer.Typer.typedExpr(Typer.scala:2720)
at dotty.tools.dotc.typer.FrontEnd.liftedTree1$1(FrontEnd.scala:79)
at dotty.tools.dotc.typer.FrontEnd.typeCheck$$anonfun$1(FrontEnd.scala:84)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.typer.FrontEnd.monitor(FrontEnd.scala:43)
at dotty.tools.dotc.typer.FrontEnd.typeCheck(FrontEnd.scala:85)
at dotty.tools.dotc.typer.FrontEnd.runOn$$anonfun$3(FrontEnd.scala:120)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.immutable.List.foreach(List.scala:333)
at dotty.tools.dotc.typer.FrontEnd.runOn(FrontEnd.scala:120)
at dotty.tools.dotc.Run.runPhases$4$$anonfun$4(Run.scala:185)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:15)
at dotty.runtime.function.JProcedure1.apply(JProcedure1.java:10)
at scala.collection.ArrayOps$.foreach$extension(ArrayOps.scala:1323)
at dotty.tools.dotc.Run.runPhases$5(Run.scala:195)
at dotty.tools.dotc.Run.compileUnits$$anonfun$1(Run.scala:203)
at dotty.runtime.function.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
at dotty.tools.dotc.util.Stats$.maybeMonitored(Stats.scala:67)
at dotty.tools.dotc.Run.compileUnits(Run.scala:210)
at dotty.tools.dotc.Run.compileSources(Run.scala:147)
at dotty.tools.dotc.Run.compile(Run.scala:129)
at dotty.tools.dotc.Driver.doCompile(Driver.scala:38)
at dotty.tools.dotc.Driver.process(Driver.scala:193)
at dotty.tools.dotc.Main.process(Main.scala)
at xsbt.CachedCompilerImpl.run(CachedCompilerImpl.java:69)
at xsbt.CompilerInterface.run(CompilerInterface.java:41)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at sbt.internal.inc.AnalyzingCompiler.call(AnalyzingCompiler.scala:248)
at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:122)
at sbt.internal.inc.AnalyzingCompiler.compile(AnalyzingCompiler.scala:95)
at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$4(MixedAnalyzingCompiler.scala:91)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at sbt.internal.inc.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:186)
at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3(MixedAnalyzingCompiler.scala:82)
at sbt.internal.inc.MixedAnalyzingCompiler.$anonfun$compile$3$adapted(MixedAnalyzingCompiler.scala:77)
at sbt.internal.inc.JarUtils$.withPreviousJar(JarUtils.scala:215)
at sbt.internal.inc.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:77)
at sbt.internal.inc.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:146)
at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1(IncrementalCompilerImpl.scala:343)
at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileInternal$1$adapted(IncrementalCompilerImpl.scala:343)
at sbt.internal.inc.Incremental$.doCompile(Incremental.scala:120)
at sbt.internal.inc.Incremental$.$anonfun$compile$4(Incremental.scala:100)
at sbt.internal.inc.IncrementalCommon.recompileClasses(IncrementalCommon.scala:180)
at sbt.internal.inc.IncrementalCommon.cycle(IncrementalCommon.scala:98)
at sbt.internal.inc.Incremental$.$anonfun$compile$3(Incremental.scala:102)
at sbt.internal.inc.Incremental$.manageClassfiles(Incremental.scala:155)
at sbt.internal.inc.Incremental$.compile(Incremental.scala:92)
at sbt.internal.inc.IncrementalCompile$.apply(Compile.scala:75)
at sbt.internal.inc.IncrementalCompilerImpl.compileInternal(IncrementalCompilerImpl.scala:348)
at sbt.internal.inc.IncrementalCompilerImpl.$anonfun$compileIncrementally$1(IncrementalCompilerImpl.scala:301)
at sbt.internal.inc.IncrementalCompilerImpl.handleCompilationError(IncrementalCompilerImpl.scala:168)
at sbt.internal.inc.IncrementalCompilerImpl.compileIncrementally(IncrementalCompilerImpl.scala:248)
at sbt.internal.inc.IncrementalCompilerImpl.compile(IncrementalCompilerImpl.scala:74)
at sbt.Defaults$.compileIncrementalTaskImpl(Defaults.scala:1765)
at sbt.Defaults$.$anonfun$compileIncrementalTask$1(Defaults.scala:1738)
at scala.Function1.$anonfun$compose$1(Function1.scala:49)
at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
at sbt.std.Transform$$anon$4.work(Transform.scala:67)
at sbt.Execute.$anonfun$submit$2(Execute.scala:281)
at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:19)
at sbt.Execute.work(Execute.scala:290)
at sbt.Execute.$anonfun$submit$1(Execute.scala:281)
at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at java.base/java.lang.Thread.run(Thread.java:832)
[error] -- [E046] Cyclic Error: /Users/benplom/Downloads/Vx1Ka5jhToaX0guV87vFkQ/src/main/scala/main.scala:1:48
[error] 1 |def oops = org.apache.avro.SchemaBuilder.builder().fixed("foo")
[error] | ^
[error] | Cyclic reference involving class FixedBuilder
[error] one error found
[error] (Compile / compileIncremental) Compilation failed
[error] Total time: 0 s, completed 30 Nov 2020, 18:05:02
bplommer
on 30 Nov 2020
@bplommer There's many different things that can cause cycles, please open a new issue for the problem you're encountering.
smarter
on 30 Nov 2020
👍1
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Most helpful comment
This is the problematic class: https://github.com/knowm/XChange/blob/develop/xchange-core/src/main/java/org/knowm/xchange/dto/trade/LimitOrder.java#L22