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Subclasses should not share fields with superclasses if superclass field accessor is non-final

4

```scala class A(val y: Int) class B(y: Int) extends A(y) { def yy = y } class C extends B(0) { override val y = -1 } object Test {...

scabug

A future created inside of a parallel collection map / foreach sometimes blocks the fork join pool with JDK 11

42

## reproduction steps (using Scala 2.12.12 or 2.13.3) - clone a project from https://github.com/OndrejSpanel/ParLoopAndFuture - run the Main class using JDK 11.0.4 ## problem Observe the message "Suspicious background duration...

OndrejSpanel

array pattern must respect array invariance

16

Since it is not going down without a fight, ticket time. Adriaan observed that Array matching is being done covariantly. So is isInstanceOf it turns out. The following prints "1...

scabug

track values of implicit vals when types depend on it

3

https://gist.github.com/2943283 ```scala class Indirection[T](implicit val c: CompanionProvider[T]) { def indirect: c.CompanionT = c.provide } // error: value foo is not a member of _1.c.CompanionT new Indirection[Foo].indirect.foo ``` this doesn't work...

scabug

scala.reflect.internal.FatalError: class Object does not have a method getClass

16

I am raising it here because I have no idea how this can happen. Restarting the presentation compiler doesn't help only restarting the whole JVM does. It's also not possible...

tgodzik

getOrElseUpdate does not behave as it should on mutable.LongMap

4

Here's a self-contained example that shows the incorrect behavior: ```scala import scala.collection.mutable import scala.collection.immutable.SortedSet import scala.util.Random class Bug(m: mutable.Map[Long, Unit]): def test(useGetOrElseUpdate: Boolean): Set[Long] = val rand = Random(1) def...

charpov

```scala Welcome to Scala 2.13.15 (OpenJDK 64-Bit Server VM, Java 21.0.1). Type in expressions for evaluation. Or try :help. scala> implicitly[collection.BuildFrom[collection.concurrent.Map[String, String], (String, String), collection.concurrent.Map[String, String]]] ^ error: Cannot construct...

lrytz

Support forward reference from annotation argument to member of the annotated class.

21

With Scalac 2.10, the use of any objects, class or method annotaded with the com.unboundid.util.ThreadSafetyLevel leads to java.lang.AssertionError. For example, the following file Test.scala: ```scala import com.unboundid.ldap.sdk.Entry object Test extends...

scabug

Type inference does not work on methods using dependent types and parameters with default value

10

Here is a minimal test case that shows the problem: ```scala trait Main { trait A { type B } trait C { def c(a: A, x: Int = 0)(b:...

scabug

"Error while emitting" from scalac on pattern matching with AnyVal result

1

## Reproduction steps openjdk 17 and 21 scala version 2.13.10 and 2.13.14 and 2.13.15 sbt version 1.10.1 and 1.10.2 build.sbt ``` scalaVersion := "2.13.14" // or other 2.13.x versions ```...

iogrm