Scala 2.13.0-M4: StackoverflowError during compilation #11030

xerial · 2018-07-18T23:06:55Z

Scala 2.13.0-M4 shows the following StackOverflowError, which never happened in Scala 2.11, 2.12:

https://travis-ci.org/wvlet/airframe/builds/405575941 (Only Scala 2.13.0-M4 build fails)
https://travis-ci.org/wvlet/airframe/jobs/405575946 (StackOverflowError in Scala 2.13.0-M4):

[error] java.lang.StackOverflowError
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:674)
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] 	at scala.reflect.internal.Types$TypeVar.mapOver(Types.scala:3505)
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:674)
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:708)
[error] 	at scala.reflect.internal.Types$RefinedType.mapOver(Types.scala:1687)
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:674)
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] 	at scala.reflect.internal.Types$TypeVar.mapOver(Types.scala:3505)
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:674)
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] 	at scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:708)
[error] 	at scala.reflect.internal.Types$RefinedType.mapOver(Types.scala:1687)

How to reproduce:

$ git clone [email protected]:wvlet/airframe
$ cd airframe
$ ./sbt 
> ++ 2.13.0-M4
>  ~codec/compile

The cause of the error:
If I remove the following lines from the code, the error disappearred:
https://github.com/wvlet/airframe/blob/f16ea745e545b82d4b47e5725600ff325e2c6d44/airframe-codec/src/main/scala/wvlet/airframe/codec/MessageCodecFactory.scala#L60-L69

It seems there might be some cyclic references in the code, or already traversed references are not properly cached in the compiler side.

The text was updated successfully, but these errors were encountered:

SethTisue · 2018-07-18T23:10:41Z

does increasing the JVM stack size setting make the problem go away? we need to distinguish whether it's actually consuming unbounded stack (bug), or just is consuming a little more stack than it used to and happened to exceed the limit on this particular codebase with your particular JVM settings (not a bug)

xerial · 2018-07-18T23:16:31Z

@SethTisue I tried -Xss128m (from 2m), but the problem still occurred.

It seems using two classes extending MessageCodec[Seq[A]] and MessageCodec[IndexSeq[A]] at the same time causes this issue:
https://github.com/wvlet/airframe/blob/32cf6f4b7e112e6fb4b9cd21cd2614542db2a5e9/airframe-codec/src/main/scala/wvlet/airframe/codec/CollectionCodec.scala#L59-L77

If I use only one of them, this error doesn't occur.

SethTisue · 2018-07-18T23:20:42Z

okay. are you able to reproduce it in a self-contained piece of code that we could incorporate into our regression tests...?

xerial · 2018-07-18T23:22:07Z

ok. I'll try.

SethTisue · 2018-07-18T23:30:08Z

note that even on 2.12.6, compiling with -Ytyper-debug induces compilation to fail:

[error] /Users/tisue/airframe/airframe-log/jvm/src/main/scala/wvlet/log/LogLevelScanner.scala:146:12: recursive method copy needs result type
[error] case class LogLevelScannerConfig(logLevelFileCandidates: Seq[String],
[error]            ^
[error] /Users/tisue/airframe/airframe-log/jvm/src/main/scala/wvlet/log/io/Resource.scala:185:14: recursive method copy needs result type
[error]   case class SystemFile(file: java.io.File, logicalPath: String) extends VirtualFile {
[error]              ^
[error] /Users/tisue/airframe/airframe-log/jvm/src/main/scala/wvlet/log/io/Resource.scala:197:14: recursive method copy needs result type
[error]   case class FileInJar(resourceURL: URL, logicalPath: String, isDirectory: Boolean) extends VirtualFile {
[error]              ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogRecord.scala:51:12: recursive method copy needs result type
[error] case class LogRecord(level: LogLevel, source: Option[LogSource], message: String, cause: Option[Throwable])
[error]            ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogRecord.scala:26:12: recursive method copy needs result type
[error] case class LogSource(path: String, fileName: String, line: Int, col: Int) {
[error]            ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:45:51: illegal cyclic reference involving macro method error
[error]   protected def error(message: Any): Unit = macro errorLog
[error]                                                   ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:46:69: illegal cyclic reference involving macro method error|    |-- def warn BYVALmode-EXPRmode (site: trait LoggingMethods) 
[error]   protected def error(message: Any, cause: Throwable): Unit = macro errorLogWithCause
[error]                                                                     ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:48:50: illegal cyclic reference involving macro method warn|    |-- def warn BYVALmode-EXPRmode (site: trait LoggingMethods) 
[error]   protected def warn(message: Any): Unit = macro warnLog
[error]                                                  ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:49:68: illegal cyclic reference involving macro method warn
[error]   protected def warn(message: Any, cause: Throwable): Unit = macro warnLogWithCause
[error]                                                                    ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:51:50: illegal cyclic reference involving macro method info
[error]   protected def info(message: Any): Unit = macro infoLog
[error]                                                  ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:52:68: illegal cyclic reference involving macro method info
[error]   protected def info(message: Any, cause: Throwable): Unit = macro infoLogWithCause|    |-- def debug BYVALmode-EXPRmode (site: trait LoggingMethods) 
[error]                                                                    ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:54:51: illegal cyclic reference involving macro method debug|    |-- def debug BYVALmode-EXPRmode (site: trait LoggingMethods) 
[error]   protected def debug(message: Any): Unit = macro debugLog
[error]                                                   ^|    |    |-- Unit TYPEmode (site: macro method debug in LoggingMethods) 
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:55:69: illegal cyclic reference involving macro method debug
[error]   protected def debug(message: Any, cause: Throwable): Unit = macro debugLogWithCause
[error]                                                                     ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:57:51: illegal cyclic reference involving macro method trace
[error]   protected def trace(message: Any): Unit = macro traceLog
[error]                                                   ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/LogSupport.scala:58:69: illegal cyclic reference involving macro method trace
[error]   protected def trace(message: Any, cause: Throwable): Unit = macro traceLogWithCause
[error]                                                                     ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:48:41: illegal cyclic reference involving macro method error|    |    \-> <error>
[error]   def error(message: Any): Unit = macro errorLogMethod
[error]                                         ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:49:59: illegal cyclic reference involving macro method error
[error]   def error(message: Any, cause: Throwable): Unit = macro errorLogMethodWithCause
[error]                                                           ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:51:40: illegal cyclic reference involving macro method warn
[error]   def warn(message: Any): Unit = macro warnLogMethod
[error]                                        ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:52:58: illegal cyclic reference involving macro method warn
[error]   def warn(message: Any, cause: Throwable): Unit = macro warnLogMethodWithCause
[error]                                                          ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:54:40: illegal cyclic reference involving macro method info
[error]   def info(message: Any): Unit = macro infoLogMethod
[error]                                        ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:55:58: illegal cyclic reference involving macro method info
[error]   def info(message: Any, cause: Throwable): Unit = macro infoLogMethodWithCause
[error]                                                          ^|    |-- def debug BYVALmode-EXPRmode (site: class Logger) 
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:57:41: illegal cyclic reference involving macro method debug
[error]   def debug(message: Any): Unit = macro debugLogMethod
[error]                                         ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:58:59: illegal cyclic reference involving macro method debug
[error]   def debug(message: Any, cause: Throwable): Unit = macro debugLogMethodWithCause|    |-- def trace BYVALmode-EXPRmode (site: class Logger) 
[error]                                                           ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:60:41: illegal cyclic reference involving macro method trace
[error]   def trace(message: Any): Unit = macro traceLogMethod
[error]                                         ^
[error] /Users/tisue/airframe/airframe-log/shared/src/main/scala/wvlet/log/Logger.scala:61:59: illegal cyclic reference involving macro method trace
[error]   def trace(message: Any, cause: Throwable): Unit = macro traceLogMethodWithCause
[error]                                                           ^
[error] 25 errors found
[error] (logJVM / Compile / compileIncremental) Compilation failed

xerial · 2018-07-18T23:38:42Z

@SethTisue interesting, but i guess it's unrelated to this issue because even if I remove Logger macro code, the problem still happens. Could you try 'codec/compile' ?

xerial · 2018-07-18T23:42:44Z

OK. It seems I need to fix the above cyclic reference first to see the typer debug log in codec project.

SethTisue · 2018-07-18T23:47:14Z

codec/compile is what I already tried, but I had enabled -Ytyper-debug build-wide. so yes, it's a good suggestion to enable it in the codec project only, using set codec / Compile / scalacOptions += "-Ytyper-debug". when I do that, I still get errors on 2.12.6:

[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/CollectionCodec.scala:62:14: recursive method copy needs result type
[error]   case class SeqCodec[A](surface: Surface, elementCodec: MessageCodec[A]) extends MessageCodec[Seq[A]] {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/CollectionCodec.scala:72:14: recursive method copy needs result type
[error]   case class IndexedSeqCodec[A](surface: Surface, elementCodec: MessageCodec[A]) extends MessageCodec[IndexedSeq[A]] {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/CollectionCodec.scala:91:14: recursive method copy needs result type
[error]   case class ListCodec[A](surface: Surface, elementCodec: MessageCodec[A]) extends MessageCodec[Seq[A]] {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/CollectionCodec.scala:102:14: recursive method copy needs result type
[error]   case class JavaListCodec[A](elementCodec: MessageCodec[A]) extends MessageCodec[java.util.List[A]] {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/CollectionCodec.scala:123:14: recursive method copy needs result type
[error]   case class MapCodec[A, B](keyCodec: MessageCodec[A], valueCodec: MessageCodec[B]) extends MessageCodec[Map[A, B]] {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/CollectionCodec.scala:147:14: recursive method copy needs result type
[error]   case class JavaMapCodec[A, B](keyCodec: MessageCodec[A], valueCodec: MessageCodec[B])
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/DataType.scala:57:14: recursive method copy needs result type
[error]   case class ARRAY(elementType: DataType) extends StructuredType {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/DataType.scala:63:14: recursive method copy needs result type
[error]   case class MAP(keyType: DataType, valueType: DataType) extends StructuredType {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/DataType.scala:74:14: recursive method copy needs result type
[error]   case class UNION(types: Seq[RecordType]) extends StructuredType {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/DataType.scala:83:14: recursive method copy needs result type
[error]   case class RecordType(typeName: String, column: Seq[Column]) extends DataType {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/DataType.scala:113:14: recursive method copy needs result type
[error]   case class Column(name: String, columnType: DataType) {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/ObjectCodec.scala:27:12: recursive method copy needs result type
[error] case class ObjectCodec[A](surface: Surface, paramCodec: Seq[MessageCodec[_]]) extends MessageCodec[A] with LogSupport {
[error]            ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/ScalaStandardCodec.scala:23:14: recursive method copy needs result type
[error]   case class OptionCodec[A](elementCodec: MessageCodec[A]) extends MessageCodec[Option[A]] {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/ScalaStandardCodec.scala:44:14: recursive method copy needs result type
[error]   case class TupleCodec(elementCodec: Seq[MessageCodec[_]]) extends MessageCodec[Product] {
[error]              ^
[error] /Users/tisue/airframe/airframe-codec/src/main/scala/wvlet/airframe/codec/StandardCodec.scala:133:14: recursive method copy needs result type
[error]   case class EnumCodec[A](enumType: Class[A]) extends MessageCodec[A] with LogSupport {
[error]              ^
[error] 15 errors found
[error] (codec / Compile / compileIncremental) Compilation failed
[error] Total time: 9 s, completed Jul 18, 2018 4:44:34 PM

whether it's related or not, I don't know (especially since we don't have a minimization yet)

SethTisue · 2018-07-18T23:48:24Z

OK. It seems I need to fix the above cyclic reference first to see the typer debug log in codec project.

(see my comment, which I wrote before I'd seen yours, even though it ended up showing up after it on GitHub)

xerial · 2018-07-19T00:03:19Z

@SethTisue
Here is the minimized code to reproduce recursive type error:
build.sbt

scalaVersion := "2.13.0-M4"
scalacOptions ++= Seq("-Ytyper-debug")

Sample.scala

package sample

trait Expr[A]
case class Elem[A](e:A) extends Expr[A]

object Sample {
   def main(args:Array[String]): Unit = {
     val e = Elem(1)
  }
}

[error] /Users/leo/work/tmp/scala-bug-2_13_0_M4/src/main/scala/Sample.scala:4:12: recursive method copy needs result type
[error] case class Elem[A](e:A) extends Expr[A]
[error]            ^
[error] one error found

xerial · 2018-07-19T00:05:47Z

Scala 2.13.0-M4, 2.12.6 <- failed
Scala 2.11.11 <- passed

xerial · 2018-07-19T00:09:25Z

It seems this two lines are good enough to reproduce this recursive type error:

trait Expr[A]
case class Elem[A](e:A) extends Expr[A]

xerial · 2018-07-19T00:12:03Z

This error didn't happen if the case class is changed to a regular class.

xerial · 2018-07-19T00:19:53Z

At least I've found a workaround for my project (using regular classes instead of case classes) to avoid this stackoverflow error.

SethTisue · 2018-07-19T00:22:26Z

it's interesting and perhaps useful to know what the minimization is with -Ytyper-debug enabled, but what's the minimization without it enabled...?

xerial · 2018-07-19T00:43:55Z

I've tried but it's bit hard to find minimization to cause StackOverflowError.

xuwei-k · 2018-08-21T07:44:25Z

similar StackOverflow error in fs2

[error] ## Exception when compiling 28 sources to /home/travis/build/xuwei-k/fs2/core/jvm/target/scala-2.13.0-M4/classes
[error] null
[error] scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:673)
[error] scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] scala.reflect.internal.Types$TypeRef.mapOver(Types.scala:2169)
[error] scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:729)
[error] scala.reflect.internal.Types$TypeBounds.$anonfun$mapOver$1(Types.scala:1359)
[error] scala.reflect.internal.Types$TypeBounds.mapOver(Types.scala:1359)
[error] scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:674)
[error] scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] scala.reflect.internal.Types$Type.substSym(Types.scala:744)
[error] scala.reflect.internal.Symbols$Symbol.$anonfun$substInfo$1(Symbols.scala:1569)
[error] scala.reflect.internal.Symbols$Symbol.modifyInfo(Symbols.scala:1562)
[error] scala.reflect.internal.Symbols$Symbol.substInfo(Symbols.scala:1569)
[error] scala.reflect.internal.Symbols.$anonfun$deriveSymbols$1(Symbols.scala:3607)
[error] scala.reflect.internal.Symbols.deriveSymbols(Symbols.scala:3607)
[error] scala.reflect.internal.Symbols.deriveSymbols$(Symbols.scala:3605)
[error] scala.reflect.internal.SymbolTable.deriveSymbols(SymbolTable.scala:18)
[error] scala.reflect.internal.Symbols.cloneSymbols(Symbols.scala:3667)
[error] scala.reflect.internal.Symbols.cloneSymbols$(Symbols.scala:3666)
[error] scala.reflect.internal.SymbolTable.cloneSymbols(SymbolTable.scala:18)
[error] scala.reflect.internal.Symbols.createFromClonedSymbols(Symbols.scala:3686)
[error] scala.reflect.internal.Symbols.createFromClonedSymbols$(Symbols.scala:3685)
[error] scala.reflect.internal.SymbolTable.createFromClonedSymbols(SymbolTable.scala:18)
[error] scala.reflect.internal.tpe.TypeMaps$SubstMap.renameBoundSyms(TypeMaps.scala:640)
[error] scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:674)
[error] scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] scala.reflect.internal.Types$TypeVar.mapOver(Types.scala:3505)
[error] scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:674)
[error] scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] scala.reflect.internal.Types$Type.substSym(Types.scala:744)
[error] scala.reflect.internal.Symbols.createFromClonedSymbols(Symbols.scala:3687)
[error] scala.reflect.internal.Symbols.createFromClonedSymbols$(Symbols.scala:3685)
[error] scala.reflect.internal.SymbolTable.createFromClonedSymbols(SymbolTable.scala:18)
[error] scala.reflect.internal.tpe.TypeMaps$SubstMap.renameBoundSyms(TypeMaps.scala:640)
[error] scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:674)
[error] scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] scala.reflect.internal.Types$TypeVar.mapOver(Types.scala:3505)
[error] scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:674)
[error] scala.reflect.internal.tpe.TypeMaps$SubstSymMap.apply(TypeMaps.scala:735)
[error] scala.reflect.internal.Types$Type.substSym(Types.scala:744)

joroKr21 · 2018-10-09T20:28:56Z

similar StackOverflow error in fs2

Maybe #10911 which has PR?

adriaanm · 2019-01-11T15:06:05Z

Assigning to you, @joroKr21, assuming scala/scala#7580 fixes this one too

adriaanm · 2019-02-12T07:12:50Z

Sounds like a bug in -Ytyper-debug, which does cause issues sometimes, but it compiles fine without the flag on current 2.13.x. Rescheduling for 2.13.1

vladimir-lu · 2019-02-19T14:13:32Z

Sounds like a bug in -Ytyper-debug, which does cause issues sometimes, but it compiles fine without the flag on current 2.13.x. Rescheduling for 2.13.1

Most likely unrelated but very similar bug (and the only google result) - but I've managed to get the recursive method copy needs result type error with -Ytyper-debug on on a simple case class with no generic parameters at all. I need to try with 2.13.0-M5, currently on 2.12.4-typelevel-4 because the library is using type literals. Should I open a new issue (still trying to minimise at the moment)?

adriaanm · 2019-02-19T15:34:23Z

I don’t think it needs a separate issue. Note that we’re not going to be able to prioritize fixing bugs in -Y flags. The typer debug mechanism is known to have issues with cycles and it’s not easy to fix

vladimir-lu · 2019-02-20T09:08:00Z

I don’t think it needs a separate issue. Note that we’re not going to be able to prioritize fixing bugs in -Y flags. The typer debug mechanism is known to have issues with cycles and it’s not easy to fix

Understood - thanks for clarifying :)

SethTisue added the typer label Jul 18, 2018

xerial added a commit to wvlet/airframe that referenced this issue Jul 19, 2018

Add workaround for scala/bug#11030

7e98b8a

xerial mentioned this issue Jul 19, 2018

Scala 2.13.0-M4 wvlet/airframe#175

Merged

7 tasks

xuwei-k mentioned this issue Aug 21, 2018

support Scala 2.13 typelevel/fs2#1232

Closed

smarter mentioned this issue Oct 9, 2018

Help port more of eco-system to Scala 2.13 scala/scala-dev#563

Closed

SethTisue added this to the 2.13.0-RC1 milestone Oct 9, 2018

adriaanm self-assigned this Nov 13, 2018

joroKr21 mentioned this issue Dec 27, 2018

Fix HKT unification bugs scala/scala#7580

Merged

adriaanm assigned joroKr21 and unassigned adriaanm Jan 11, 2019

adriaanm modified the milestones: 2.13.0-RC1, 2.13.1 Feb 12, 2019

szeiger modified the milestones: 2.13.1, 2.13.2 Aug 28, 2019

SethTisue modified the milestones: 2.13.2, Backlog Feb 6, 2020

joroKr21 removed their assignment Jan 6, 2021

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Scala 2.13.0-M4: StackoverflowError during compilation #11030

Scala 2.13.0-M4: StackoverflowError during compilation #11030

xerial commented Jul 18, 2018

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vladimir-lu commented Feb 20, 2019

Scala 2.13.0-M4: StackoverflowError during compilation #11030

Scala 2.13.0-M4: StackoverflowError during compilation #11030

Comments

xerial commented Jul 18, 2018

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xerial commented Jul 18, 2018

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SethTisue commented Jul 18, 2018

xerial commented Jul 18, 2018

xerial commented Jul 18, 2018

SethTisue commented Jul 18, 2018

SethTisue commented Jul 18, 2018

xerial commented Jul 19, 2018 • edited Loading

xerial commented Jul 19, 2018

xerial commented Jul 19, 2018

xerial commented Jul 19, 2018

xerial commented Jul 19, 2018

SethTisue commented Jul 19, 2018

xerial commented Jul 19, 2018

xuwei-k commented Aug 21, 2018

joroKr21 commented Oct 9, 2018

adriaanm commented Jan 11, 2019

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vladimir-lu commented Feb 19, 2019

adriaanm commented Feb 19, 2019

vladimir-lu commented Feb 20, 2019

xerial commented Jul 19, 2018 •

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