[
https://issues.apache.org/jira/browse/SPARK-34258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hyukjin Kwon updated SPARK-34258:
---------------------------------
Description:
There is a regression in Scala 2.13. We should probably upgrade maintenance
version of Scala 2.13 before Spark 3.2.0 release. In short:
{code}
scalaVersion := "2.13.2"
libraryDependencies ++= Seq(
"org.scala-lang" % "scala-reflect" % scalaVersion.value,
"com.google.protobuf" % "protobuf-java" % "3.11.4"
)
{code}
{code}
package foo
import scala.reflect.runtime.universe
import com.google.protobuf.DescriptorProtos.FileDescriptorProto
object Hello {
def fromJava(t: FileDescriptorProto): Unit = {}
}
object Main {
def main(args: Array[String]): Unit = {
val mirror = universe.runtimeMirror(getClass.getClassLoader())
println(
mirror.reflectModule(
mirror.staticModule("foo.Hello$"))
.instance)
}
{code}
fails with the error below:
{code}
[info] running foo.Main
[error] (run-main-b) scala.reflect.internal.Symbols$CyclicReference: illegal
cyclic reference involving type BuilderType
{code}
See https://github.com/scala/bug/issues/12038 for more details.
was:Regression of scala 2.13, see details in
https://github.com/scala/bug/issues/12038
> scala.reflect.internal.Symbols$CyclicReference: illegal cyclic reference
> involving type BuilderType
> ---------------------------------------------------------------------------------------------------
>
> Key: SPARK-34258
> URL: https://issues.apache.org/jira/browse/SPARK-34258
> Project: Spark
> Issue Type: Sub-task
> Components: Build
> Affects Versions: 3.2.0
> Reporter: wuyi
> Priority: Major
>
> There is a regression in Scala 2.13. We should probably upgrade maintenance
> version of Scala 2.13 before Spark 3.2.0 release. In short:
> {code}
> scalaVersion := "2.13.2"
> libraryDependencies ++= Seq(
> "org.scala-lang" % "scala-reflect" % scalaVersion.value,
> "com.google.protobuf" % "protobuf-java" % "3.11.4"
> )
> {code}
> {code}
> package foo
> import scala.reflect.runtime.universe
> import com.google.protobuf.DescriptorProtos.FileDescriptorProto
> object Hello {
> def fromJava(t: FileDescriptorProto): Unit = {}
> }
> object Main {
> def main(args: Array[String]): Unit = {
> val mirror = universe.runtimeMirror(getClass.getClassLoader())
> println(
> mirror.reflectModule(
> mirror.staticModule("foo.Hello$"))
> .instance)
> }
> {code}
> fails with the error below:
> {code}
> [info] running foo.Main
> [error] (run-main-b) scala.reflect.internal.Symbols$CyclicReference: illegal
> cyclic reference involving type BuilderType
> {code}
> See https://github.com/scala/bug/issues/12038 for more details.
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