Merge pull request #3729 from retronym/merge/master-to-2.11.x

Merge master to 2.11.x

27 files changed, 352 insertions, 23 deletions

diff --git a/src/compiler/scala/reflect/macros/compiler/DefaultMacroCompiler.scala b/src/compiler/scala/reflect/macros/compiler/DefaultMacroCompiler.scala
index 1413065a27..a13a778b2f 100644
--- a/src/compiler/scala/reflect/macros/compiler/DefaultMacroCompiler.scala
+++ b/src/compiler/scala/reflect/macros/compiler/DefaultMacroCompiler.scala
@@ -53,7 +53,7 @@ abstract class DefaultMacroCompiler extends Resolvers
         (EmptyTree, TermName(""), Nil)
     }
     val bundleImplRef = MacroImplRefCompiler(
-      atPos(macroDdef.rhs.pos)(gen.mkTypeApply(Select(New(maybeBundleRef, List(List(Ident(Predef_???)))), methName), targs)),
+      atPos(macroDdef.rhs.pos)(gen.mkTypeApply(Select(New(maybeBundleRef, List(List(Literal(Constant(null))))), methName), targs)),
       isImplBundle = true
     )
     val vanillaResult = tryCompile(vanillaImplRef)
diff --git a/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala b/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala
index 9e631febee..ffc45b21ea 100644
--- a/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala
+++ b/src/compiler/scala/tools/nsc/ast/parser/Parsers.scala
@@ -654,9 +654,10 @@ self =>
     def isIdentExcept(except: Name) = isIdent && in.name != except
     def isIdentOf(name: Name)       = isIdent && in.name == name
 
-    def isUnaryOp = isIdent && raw.isUnary(in.name)
-    def isRawStar = isIdent && in.name == raw.STAR
-    def isRawBar  = isIdent && in.name == raw.BAR
+    def isUnaryOp  = isIdent && raw.isUnary(in.name)
+    def isRawStar  = isRawIdent && in.name == raw.STAR
+    def isRawBar   = isRawIdent && in.name == raw.BAR
+    def isRawIdent = in.token == IDENTIFIER
 
     def isIdent = in.token == IDENTIFIER || in.token == BACKQUOTED_IDENT
     def isMacro = in.token == IDENTIFIER && in.name == nme.MACROkw
@@ -1001,19 +1002,30 @@ self =>
       }
 
       def infixTypeRest(t: Tree, mode: InfixMode.Value): Tree = {
-        if (isIdent && in.name != nme.STAR) {
-          val opOffset = in.offset
+        // Detect postfix star for repeated args.
+        // Only RPAREN can follow, but accept COMMA and EQUALS for error's sake.
+        // Take RBRACE as a paren typo.
+        def checkRepeatedParam = if (isRawStar) {
+          lookingAhead (in.token match {
+            case RPAREN | COMMA | EQUALS | RBRACE => t
+            case _                                => EmptyTree
+          })
+        } else EmptyTree
+        def asInfix = {
+          val opOffset  = in.offset
           val leftAssoc = treeInfo.isLeftAssoc(in.name)
-          if (mode != InfixMode.FirstOp) checkAssoc(opOffset, in.name, leftAssoc = mode == InfixMode.LeftOp)
-          val op = identForType()
-          val tycon = atPos(opOffset) { Ident(op) }
+          if (mode != InfixMode.FirstOp)
+            checkAssoc(opOffset, in.name, leftAssoc = mode == InfixMode.LeftOp)
+          val tycon = atPos(opOffset) { Ident(identForType()) }
           newLineOptWhenFollowing(isTypeIntroToken)
           def mkOp(t1: Tree) = atPos(t.pos.start, opOffset) { AppliedTypeTree(tycon, List(t, t1)) }
           if (leftAssoc)
             infixTypeRest(mkOp(compoundType()), InfixMode.LeftOp)
           else
             mkOp(infixType(InfixMode.RightOp))
-        } else t
+        }
+        if (isIdent) checkRepeatedParam orElse asInfix
+        else t
       }
 
       /** {{{
diff --git a/src/compiler/scala/tools/nsc/backend/jvm/BCodeHelpers.scala b/src/compiler/scala/tools/nsc/backend/jvm/BCodeHelpers.scala
index 359e5d6c29..f800dbf9cd 100644
--- a/src/compiler/scala/tools/nsc/backend/jvm/BCodeHelpers.scala
+++ b/src/compiler/scala/tools/nsc/backend/jvm/BCodeHelpers.scala
@@ -239,6 +239,13 @@ abstract class BCodeHelpers extends BCodeTypes with BytecodeWriters {
   }
 
   /*
+   *  must-single-thread
+   */
+  def serialVUID(csym: Symbol): Option[Long] = csym getAnnotation definitions.SerialVersionUIDAttr collect {
+    case AnnotationInfo(_, _, (_, LiteralAnnotArg(const)) :: Nil) => const.longValue
+  }
+
+  /*
    * Populates the InnerClasses JVM attribute with `refedInnerClasses`.
    * In addition to inner classes mentioned somewhere in `jclass` (where `jclass` is a class file being emitted)
    * `refedInnerClasses` should contain those inner classes defined as direct member classes of `jclass`
@@ -881,13 +888,6 @@ abstract class BCodeHelpers extends BCodeTypes with BytecodeWriters {
     val MIN_SWITCH_DENSITY = 0.7
 
     /*
-     *  must-single-thread
-     */
-    def serialVUID(csym: Symbol): Option[Long] = csym getAnnotation definitions.SerialVersionUIDAttr collect {
-      case AnnotationInfo(_, Literal(const) :: _, _) => const.longValue
-    }
-
-    /*
      *  Add public static final field serialVersionUID with value `id`
      *
      *  can-multi-thread
diff --git a/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala b/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala
index a389816caf..b7f9b30e19 100644
--- a/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala
+++ b/src/compiler/scala/tools/nsc/backend/jvm/GenASM.scala
@@ -1142,9 +1142,7 @@ abstract class GenASM extends SubComponent with BytecodeWriters with GenJVMASM {
 
     def isParcelableClass = isAndroidParcelableClass(clasz.symbol)
 
-    def serialVUID: Option[Long] = clasz.symbol getAnnotation SerialVersionUIDAttr collect {
-      case AnnotationInfo(_, Literal(const) :: _, _) => const.longValue
-    }
+    def serialVUID: Option[Long] = genBCode.serialVUID(clasz.symbol)
 
     private def getSuperInterfaces(c: IClass): Array[String] = {
 
diff --git a/src/compiler/scala/tools/nsc/typechecker/RefChecks.scala b/src/compiler/scala/tools/nsc/typechecker/RefChecks.scala
index b166bf988d..4540017b62 100644
--- a/src/compiler/scala/tools/nsc/typechecker/RefChecks.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/RefChecks.scala
@@ -132,7 +132,16 @@ abstract class RefChecks extends InfoTransform with scala.reflect.internal.trans
 
       defaultMethodNames.toList.distinct foreach { name =>
         val methods      = clazz.info.findMember(name, 0L, requiredFlags = METHOD, stableOnly = false).alternatives
-        val haveDefaults = methods filter (sym => mexists(sym.info.paramss)(_.hasDefault) && !nme.isProtectedAccessorName(sym.name))
+        def hasDefaultParam(tpe: Type): Boolean = tpe match {
+          case MethodType(params, restpe) => (params exists (_.hasDefault)) || hasDefaultParam(restpe)
+          case _                          => false
+        }
+        val haveDefaults = methods filter (
+          if (settings.isScala211)
+             (sym => mexists(sym.info.paramss)(_.hasDefault) && !nme.isProtectedAccessorName(sym.name))
+          else
+            (sym => hasDefaultParam(sym.info) && !nme.isProtectedAccessorName(sym.name))
+        )
 
         if (haveDefaults.lengthCompare(1) > 0) {
           val owners = haveDefaults map (_.owner)
diff --git a/src/library/scala/collection/LinearSeq.scala b/src/library/scala/collection/LinearSeq.scala
index 1e4975a0a7..49fbb902ab 100644
--- a/src/library/scala/collection/LinearSeq.scala
+++ b/src/library/scala/collection/LinearSeq.scala
@@ -25,7 +25,7 @@ trait LinearSeq[+A] extends Seq[A]
 }
 
 /** $factoryInfo
- *  The current default implementation of a $Coll is a `Vector`.
+ *  The current default implementation of a $Coll is a `List`.
  *  @define coll linear sequence
  *  @define Coll `LinearSeq`
  */
diff --git a/src/library/scala/collection/convert/Wrappers.scala b/src/library/scala/collection/convert/Wrappers.scala
index 14ae57c43a..7d1d6b3781 100644
--- a/src/library/scala/collection/convert/Wrappers.scala
+++ b/src/library/scala/collection/convert/Wrappers.scala
@@ -194,7 +194,7 @@ private[collection] trait Wrappers {
             def getKey = k
             def getValue = v
             def setValue(v1 : B) = self.put(k, v1)
-            override def hashCode = byteswap32(k.hashCode) + (byteswap32(v.hashCode) << 16)
+            override def hashCode = byteswap32(k.##) + (byteswap32(v.##) << 16)
             override def equals(other: Any) = other match {
               case e: ju.Map.Entry[_, _] => k == e.getKey && v == e.getValue
               case _ => false
diff --git a/src/library/scala/reflect/Manifest.scala b/src/library/scala/reflect/Manifest.scala
index 803c980058..2f7643bccf 100644
--- a/src/library/scala/reflect/Manifest.scala
+++ b/src/library/scala/reflect/Manifest.scala
@@ -64,6 +64,7 @@ trait Manifest[T] extends ClassManifest[T] with Equals {
 
 // TODO undeprecated until Scala reflection becomes non-experimental
 // @deprecated("Use type tags and manually check the corresponding class or type instead", "2.10.0")
+@SerialVersionUID(1L)
 abstract class AnyValManifest[T <: AnyVal](override val toString: String) extends Manifest[T] with Equals {
   override def <:<(that: ClassManifest[_]): Boolean =
     (that eq this) || (that eq Manifest.Any) || (that eq Manifest.AnyVal)
@@ -72,6 +73,7 @@ abstract class AnyValManifest[T <: AnyVal](override val toString: String) extend
     case _                    => false
   }
   override def equals(that: Any): Boolean = this eq that.asInstanceOf[AnyRef]
+  @transient
   override val hashCode = System.identityHashCode(this)
 }
 
@@ -228,6 +230,7 @@ object ManifestFactory {
   private abstract class PhantomManifest[T](_runtimeClass: Predef.Class[_],
                                             override val toString: String) extends ClassTypeManifest[T](None, _runtimeClass, Nil) {
     override def equals(that: Any): Boolean = this eq that.asInstanceOf[AnyRef]
+    @transient
     override val hashCode = System.identityHashCode(this)
   }
 
diff --git a/test/files/neg/t6988.check b/test/files/neg/t6988.check
new file mode 100644
index 0000000000..acb7b3cb08
--- /dev/null
+++ b/test/files/neg/t6988.check
@@ -0,0 +1,7 @@
+t6988.scala:3: error: annotation argument needs to be a constant; found: 13.asInstanceOf[Long]
+@SerialVersionUID(13.asInstanceOf[Long]) case class IdentifyMessage1(userName: String, user: User, code: Int)
+                                 ^
+t6988.scala:8: error: annotation argument needs to be a constant; found: O.SerialUID
+@SerialVersionUID(O.SerialUID) case class IdentifyMessage3(userName: String, user: User, code: Int)
+                    ^
+two errors found
diff --git a/test/files/neg/t6988.scala b/test/files/neg/t6988.scala
new file mode 100644
index 0000000000..8171dc9dd0
--- /dev/null
+++ b/test/files/neg/t6988.scala
@@ -0,0 +1,10 @@
+case class User()
+
+@SerialVersionUID(13.asInstanceOf[Long]) case class IdentifyMessage1(userName: String, user: User, code: Int)
+@SerialVersionUID(13l) case class IdentifyMessage2(userName: String, user: User, code: Int)
+object O {
+  val SerialUID = "13".toLong
+}
+@SerialVersionUID(O.SerialUID) case class IdentifyMessage3(userName: String, user: User, code: Int)
+
+
diff --git a/test/files/neg/t8325-b.check b/test/files/neg/t8325-b.check
new file mode 100644
index 0000000000..ec80826dc0
--- /dev/null
+++ b/test/files/neg/t8325-b.check
@@ -0,0 +1,10 @@
+t8325-b.scala:3: error: Unmatched closing brace '}' ignored here
+  def k(is: Int*} = ???
+                ^
+t8325-b.scala:3: error: ';' expected but '=' found.
+  def k(is: Int*} = ???
+                  ^
+t8325-b.scala:4: error: eof expected but '}' found.
+}
+^
+three errors found
diff --git a/test/files/neg/t8325-b.scala b/test/files/neg/t8325-b.scala
new file mode 100644
index 0000000000..6ac78708bb
--- /dev/null
+++ b/test/files/neg/t8325-b.scala
@@ -0,0 +1,4 @@
+
+trait Test {
+  def k(is: Int*} = ???
+}
diff --git a/test/files/neg/t8325-c.check b/test/files/neg/t8325-c.check
new file mode 100644
index 0000000000..51ea4988a6
--- /dev/null
+++ b/test/files/neg/t8325-c.check
@@ -0,0 +1,7 @@
+t8325-c.scala:3: error: identifier expected but ')' found.
+  def k(xx: Int`*`) = ???
+                  ^
+t8325-c.scala:4: error: ')' expected but '}' found.
+}
+^
+two errors found
diff --git a/test/files/neg/t8325-c.scala b/test/files/neg/t8325-c.scala
new file mode 100644
index 0000000000..076202df3f
--- /dev/null
+++ b/test/files/neg/t8325-c.scala
@@ -0,0 +1,4 @@
+
+trait Test {
+  def k(xx: Int`*`) = ???
+}
diff --git a/test/files/neg/t8325.check b/test/files/neg/t8325.check
new file mode 100644
index 0000000000..175a0db415
--- /dev/null
+++ b/test/files/neg/t8325.check
@@ -0,0 +1,15 @@
+t8325.scala:5: error: *-parameter must come last
+  def f(is: Int*, s: String) = ???
+        ^
+t8325.scala:7: error: *-parameter must come last
+  def h(is: Int * String *, s: String) = ???
+        ^
+t8325.scala:10: error: type mismatch;
+ found   : Int(5)
+ required: Int*
+  def j(is: Int* = 5) = ???
+                   ^
+t8325.scala:10: error: a parameter section with a `*'-parameter is not allowed to have default arguments
+  def j(is: Int* = 5) = ???
+      ^
+four errors found
diff --git a/test/files/neg/t8325.scala b/test/files/neg/t8325.scala
new file mode 100644
index 0000000000..3813797e83
--- /dev/null
+++ b/test/files/neg/t8325.scala
@@ -0,0 +1,11 @@
+
+trait Test {
+  type OK[A,B] = A Tuple2 B
+  type *[A,B]  = A Tuple2 B
+  def f(is: Int*, s: String) = ???
+  def g(is: Int * String, s: String) = ???     // OK
+  def h(is: Int * String *, s: String) = ???
+  // won't recover from following
+  //def i(is: Int OK) = ???  //error: identifier expected but ')' found.
+  def j(is: Int* = 5) = ???
+}
diff --git a/test/files/pos/t8157-2.10.flags b/test/files/pos/t8157-2.10.flags
new file mode 100644
index 0000000000..94c8056747
--- /dev/null
+++ b/test/files/pos/t8157-2.10.flags
@@ -0,0 +1 @@
+-Xsource:2.10
diff --git a/test/files/pos/t8157-2.10.scala b/test/files/pos/t8157-2.10.scala
new file mode 100644
index 0000000000..597585a96d
--- /dev/null
+++ b/test/files/pos/t8157-2.10.scala
@@ -0,0 +1,5 @@
+object Test { // PolyTYped function default arg unicity check,
+              // fails in 2.11, authorized under -Xsource:2.10
+  def foo(printer: Any, question: => String, show: Boolean = false)(op: => Any): Any = ???
+  def foo[T](question: => String, show: Boolean)(op: => Any = ()): Any = ???
+}
diff --git a/test/files/pos/t8325.scala b/test/files/pos/t8325.scala
new file mode 100644
index 0000000000..af33ee7bb3
--- /dev/null
+++ b/test/files/pos/t8325.scala
@@ -0,0 +1,9 @@
+
+trait Test {
+  type +[A, B] = (A, B)
+  type *[A, B] = (A, B)
+
+  type X[A, B] = A + B
+  type Y[A, B] = A * B
+  type Z[A, B] = A `*` B
+}
diff --git a/test/files/pos/t8523.flags b/test/files/pos/t8523.flags
new file mode 100644
index 0000000000..c7d406c649
--- /dev/null
+++ b/test/files/pos/t8523.flags
@@ -0,0 +1 @@
+-Ywarn-dead-code -Xfatal-warnings
\ No newline at end of file
diff --git a/test/files/pos/t8523.scala b/test/files/pos/t8523.scala
new file mode 100644
index 0000000000..dfcb35404d
--- /dev/null
+++ b/test/files/pos/t8523.scala
@@ -0,0 +1,10 @@
+import scala.language.experimental.macros
+import scala.reflect.macros.blackbox.Context
+
+class Impl(val c: Context) {
+  def impl: c.Tree = ???
+}
+
+object Macros {
+  def foo: Any = macro Impl.impl
+}
\ No newline at end of file
diff --git a/test/files/run/t6988.check b/test/files/run/t6988.check
new file mode 100644
index 0000000000..5db04832d6
--- /dev/null
+++ b/test/files/run/t6988.check
@@ -0,0 +1,2 @@
+#1 13
+#2 13
diff --git a/test/files/run/t6988.scala b/test/files/run/t6988.scala
new file mode 100644
index 0000000000..45dfe33461
--- /dev/null
+++ b/test/files/run/t6988.scala
@@ -0,0 +1,9 @@
+case class User()
+
+@SerialVersionUID(13l) case class IdentifyMessage1(userName: String, user: User, code: Int)
+@SerialVersionUID(10l + 3l) case class IdentifyMessage2(userName: String, user: User, code: Int)
+
+object Test extends App {
+  println("#1 " + java.io.ObjectStreamClass.lookup(IdentifyMessage1("hei", User(), 8).getClass).getSerialVersionUID)
+  println("#2 " + java.io.ObjectStreamClass.lookup(IdentifyMessage2("hei", User(), 8).getClass).getSerialVersionUID)
+}
diff --git a/test/files/run/t8549.check b/test/files/run/t8549.check
new file mode 100644
index 0000000000..a92ddc0e51
--- /dev/null
+++ b/test/files/run/t8549.check
@@ -0,0 +1 @@
+warning: there were 2 deprecation warning(s); re-run with -deprecation for details
diff --git a/test/files/run/t8549.scala b/test/files/run/t8549.scala
new file mode 100644
index 0000000000..1b402d2d22
--- /dev/null
+++ b/test/files/run/t8549.scala
@@ -0,0 +1,175 @@
+import javax.xml.bind.DatatypeConverter._
+import scala.reflect.io.File
+
+// This test is self-modifying when run as follows:
+//
+//    (export V=v2.10.4
+//     scalac-hash $V test/files/run/t8549.scala
+//     scala-hash  $V -Doverwrite.source=test/files/run/t8549.scala Test
+//    )
+//
+// Use this to re-establish a baseline for serialization compatibility.
+object Test extends App {
+  val overwrite: Option[File] = sys.props.get("overwrite.source").map(s => new File(new java.io.File(s)))
+
+  def serialize(o: AnyRef): String = {
+    val bos = new java.io.ByteArrayOutputStream()
+    val out = new java.io.ObjectOutputStream(bos)
+    out.writeObject(o)
+    out.flush()
+    printBase64Binary(bos.toByteArray())
+  }
+
+  def amend(file: File)(f: String => String) {
+    file.writeAll(f(file.slurp))
+  }
+  def quote(s: String) = List("\"", s, "\"").mkString
+
+  def patch(file: File, line: Int, prevResult: String, result: String) {
+    amend(file) {
+      content =>
+        content.lines.toList.zipWithIndex.map {
+          case (content, i) if i == line - 1 =>
+            val newContent = content.replaceAllLiterally(quote(prevResult), quote(result))
+            if (newContent != content)
+              println(s"- $content\n+ $newContent\n")
+            newContent
+          case (content, _) => content
+        }.mkString("\n")
+    }
+  }
+
+  def updateComment(file: File) {
+    val timestamp = {
+      import java.text.SimpleDateFormat
+      val sdf = new SimpleDateFormat("yyyyMMdd-HH:mm:ss")
+      sdf.format(new java.util.Date)
+    }
+    val newComment = s"  // Generated on $timestamp with Scala ${scala.util.Properties.versionString})"
+    amend(file) {
+      content =>
+        content.lines.toList.map {
+          f => f.replaceAll("""^ +// Generated on.*""", newComment)
+        }.mkString("\n")
+    }
+  }
+
+  def deserialize(string: String): AnyRef = {
+    val bis = new java.io.ByteArrayInputStream(parseBase64Binary(string))
+    val in = new java.io.ObjectInputStream(bis)
+    in.readObject()
+  }
+
+  def checkRoundTrip[T <: AnyRef](instance: T)(f: T => AnyRef) {
+    val result = serialize(instance)
+    val reconstituted = deserialize(result).asInstanceOf[T]
+    assert(f(instance) == f(reconstituted), (f(instance), f(reconstituted)))
+  }
+
+  def check[T <: AnyRef](instance: => T)(prevResult: String, f: T => AnyRef = (x: T) => x) {
+    val result = serialize(instance)
+    overwrite match {
+      case Some(f) =>
+        val lineNumberOfLiteralString = Thread.currentThread.getStackTrace.apply(2).getLineNumber
+        patch(f, lineNumberOfLiteralString, prevResult, result)
+      case None =>
+        checkRoundTrip(instance)(f)
+        assert(f(deserialize(prevResult).asInstanceOf[T]) == f(instance), s"$instance != f(deserialize(prevResult))")
+        assert(prevResult == result, s"instance = $instance : ${instance.getClass}\n serialization unstable: ${prevResult}\n   found: ${result}")
+    }
+  }
+
+  // Generated on 20140505-14:47:14 with Scala version 2.11.1-20140505-142300-e8562571d2)
+  overwrite.foreach(updateComment)
+
+  check(List(1, 2, 3))( "rO0ABXNyADJzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5MaXN0JFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAABAwAAeHBzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4AAgAAAAJzcQB+AAIAAAADc3IALHNjYWxhLmNvbGxlY3Rpb24uaW1tdXRhYmxlLkxpc3RTZXJpYWxpemVFbmQkilxjW/dTC20CAAB4cHg=")
+  check(Nil)(           "rO0ABXNyADJzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5MaXN0JFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAABAwAAeHBzcgAsc2NhbGEuY29sbGVjdGlvbi5pbW11dGFibGUuTGlzdFNlcmlhbGl6ZUVuZCSKXGNb91MLbQIAAHhweA==")
+
+  check(Vector(1))(     "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")
+  check(Vector())(      "rO0ABXNyACFzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5WZWN0b3Lkd3dcHq6PXAIAC0kABWRlcHRoWgAFZGlydHlJAAhlbmRJbmRleEkABWZvY3VzSQAKc3RhcnRJbmRleFsACGRpc3BsYXkwdAATW0xqYXZhL2xhbmcvT2JqZWN0O1sACGRpc3BsYXkxcQB+AAFbAAhkaXNwbGF5MnEAfgABWwAIZGlzcGxheTNxAH4AAVsACGRpc3BsYXk0cQB+AAFbAAhkaXNwbGF5NXEAfgABeHAAAAAAAAAAAAAAAAAAAAAAAHBwcHBwcA==")
+
+  object Enum extends Enumeration {
+    val V1 = new Value { def id = 42 }
+    val V2 = new Val(42)
+  }
+
+  import collection.{ mutable, immutable }
+
+  class C
+  check(reflect.classTag[C])("rO0ABXNyAB5zY2FsYS5yZWZsZWN0LkNsYXNzVGFnJCRhbm9uJDG7ePPrmQBkhgIAAUwAD3J1bnRpbWVDbGFzczEkMXQAEUxqYXZhL2xhbmcvQ2xhc3M7eHB2cgAGVGVzdCRDAAAAAAAAAAAAAAB4cA==")
+  check(reflect.classTag[Int])("rO0ABXNyACVzY2FsYS5yZWZsZWN0Lk1hbmlmZXN0RmFjdG9yeSQkYW5vbiQ5zfmiSVNjtVICAAB4cgAcc2NhbGEucmVmbGVjdC5BbnlWYWxNYW5pZmVzdAAAAAAAAAABAgABTAAIdG9TdHJpbmd0ABJMamF2YS9sYW5nL1N0cmluZzt4cHQAA0ludA==")
+  check(reflect.classTag[String])("rO0ABXNyAB5zY2FsYS5yZWZsZWN0LkNsYXNzVGFnJCRhbm9uJDG7ePPrmQBkhgIAAUwAD3J1bnRpbWVDbGFzczEkMXQAEUxqYXZhL2xhbmcvQ2xhc3M7eHB2cgAQamF2YS5sYW5nLlN0cmluZ6DwpDh6O7NCAgAAeHA=")
+  check(reflect.classTag[Object])("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")
+
+  check(Enum)(         "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")
+  check(Enum.V1)(      "rO0ABXNyABFUZXN0JEVudW0kJGFub24kMVlIjlmE1sXaAgAAeHIAF3NjYWxhLkVudW1lcmF0aW9uJFZhbHVlYml8L+0hHVECAAJMAAYkb3V0ZXJ0ABNMc2NhbGEvRW51bWVyYXRpb247TAAcc2NhbGEkRW51bWVyYXRpb24kJG91dGVyRW51bXEAfgACeHBzcgAKVGVzdCRFbnVtJHrQiMkPAttzAgACTAACVjF0ABlMc2NhbGEvRW51bWVyYXRpb24kVmFsdWU7TAACVjJ0ABdMc2NhbGEvRW51bWVyYXRpb24kVmFsO3hyABFzY2FsYS5FbnVtZXJhdGlvbnWgzd2YDlmOAgAISQAGbmV4dElkSQAbc2NhbGEkRW51bWVyYXRpb24kJGJvdHRvbUlkSQAYc2NhbGEkRW51bWVyYXRpb24kJHRvcElkTAAUVmFsdWVPcmRlcmluZyRtb2R1bGV0ACJMc2NhbGEvRW51bWVyYXRpb24kVmFsdWVPcmRlcmluZyQ7TAAPVmFsdWVTZXQkbW9kdWxldAAdTHNjYWxhL0VudW1lcmF0aW9uJFZhbHVlU2V0JDtMAAhuZXh0TmFtZXQAG0xzY2FsYS9jb2xsZWN0aW9uL0l0ZXJhdG9yO0wAF3NjYWxhJEVudW1lcmF0aW9uJCRubWFwdAAeTHNjYWxhL2NvbGxlY3Rpb24vbXV0YWJsZS9NYXA7TAAXc2NhbGEkRW51bWVyYXRpb24kJHZtYXBxAH4AC3hwAAAAKwAAAAAAAAArcHBwc3IAIHNjYWxhLmNvbGxlY3Rpb24ubXV0YWJsZS5IYXNoTWFwAAAAAAAAAAEDAAB4cHcNAAAC7gAAAAAAAAAEAHhzcQB+AA13DQAAAu4AAAABAAAABABzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAKnNyABVzY2FsYS5FbnVtZXJhdGlvbiRWYWzPaWevyfztTwIAAkkAGHNjYWxhJEVudW1lcmF0aW9uJFZhbCQkaUwABG5hbWV0ABJMamF2YS9sYW5nL1N0cmluZzt4cQB+AAFxAH4ADHEAfgAMAAAAKnB4cQB+AANxAH4AFXEAfgAM")
+  check(Enum.V2)(      "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")
+
+  // IndexedSeqLike#Elements
+  check(new immutable.Range(0, 1, 1).iterator)("rO0ABXNyAChzY2FsYS5jb2xsZWN0aW9uLkluZGV4ZWRTZXFMaWtlJEVsZW1lbnRzGF+1cBwmcx0CAANJAANlbmRJAAVpbmRleEwABiRvdXRlcnQAIUxzY2FsYS9jb2xsZWN0aW9uL0luZGV4ZWRTZXFMaWtlO3hwAAAAAQAAAABzcgAgc2NhbGEuY29sbGVjdGlvbi5pbW11dGFibGUuUmFuZ2Vpu6NUqxUyDQIAB0kAA2VuZFoAB2lzRW1wdHlJAAtsYXN0RWxlbWVudEkAEG51bVJhbmdlRWxlbWVudHNJAAVzdGFydEkABHN0ZXBJAA90ZXJtaW5hbEVsZW1lbnR4cAAAAAEAAAAAAAAAAAEAAAAAAAAAAQAAAAE="
+    , _.toList)
+
+  check(new collection.concurrent.TrieMap[Any, Any]())( "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")
+  // not sure why this one needs stable serialization.
+  check(collection.convert.Wrappers)( "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")
+
+  check(immutable.BitSet(1, 2, 3))( "rO0ABXNyAClzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5CaXRTZXQkQml0U2V0MR9dg8JGRI8UAgABSgAFZWxlbXN4cgAhc2NhbGEuY29sbGVjdGlvbi5pbW11dGFibGUuQml0U2V0Flz5Ms3qxsoCAAB4cAAAAAAAAAAO")
+  check(immutable.HashMap())( "rO0ABXNyADVzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5IYXNoTWFwJFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAACAwAAeHB3BAAAAAB4")
+  check(immutable.HashMap(1 -> 2))( "rO0ABXNyADVzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5IYXNoTWFwJFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAACAwAAeHB3BAAAAAFzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4AAgAAAAJ4")
+  check(immutable.HashMap(1 -> 2, 3 -> 4))( "rO0ABXNyADVzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5IYXNoTWFwJFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAACAwAAeHB3BAAAAAJzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4AAgAAAAJzcQB+AAIAAAADc3EAfgACAAAABHg=")
+  // TODO provoke HashMapCollision1
+
+  check(immutable.HashSet())(        "rO0ABXNyADVzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5IYXNoU2V0JFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAACAwAAeHB3BAAAAAB4")
+  check(immutable.HashSet(1))(       "rO0ABXNyADVzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5IYXNoU2V0JFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAACAwAAeHB3BAAAAAFzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXg=")
+  check(immutable.HashSet(1, 2))(    "rO0ABXNyADVzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5IYXNoU2V0JFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAACAwAAeHB3BAAAAAJzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4AAgAAAAJ4")
+  check(immutable.HashSet(1, 2, 3))( "rO0ABXNyADVzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5IYXNoU2V0JFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAACAwAAeHB3BAAAAANzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4AAgAAAAJzcQB+AAIAAAADeA==")
+  // TODO provoke HashSetCollision1
+
+  check(immutable.ListMap())(       "rO0ABXNyADBzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5MaXN0TWFwJEVtcHR5TGlzdE1hcCSNalsvpBZeDgIAAHhyACJzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5MaXN0TWFwBC1gfIkUSKsCAAB4cA==")
+  check(immutable.ListMap(1 -> 2))( "rO0ABXNyACdzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5MaXN0TWFwJE5vZGWmciM1Yav+8gIAA0wABiRvdXRlcnQAJExzY2FsYS9jb2xsZWN0aW9uL2ltbXV0YWJsZS9MaXN0TWFwO0wAA2tleXQAEkxqYXZhL2xhbmcvT2JqZWN0O0wABXZhbHVlcQB+AAJ4cgAic2NhbGEuY29sbGVjdGlvbi5pbW11dGFibGUuTGlzdE1hcAQtYHyJFEirAgAAeHBzcgAwc2NhbGEuY29sbGVjdGlvbi5pbW11dGFibGUuTGlzdE1hcCRFbXB0eUxpc3RNYXAkjWpbL6QWXg4CAAB4cQB+AANzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4ABwAAAAI=")
+  check(immutable.Queue())(         "rO0ABXNyACBzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5RdWV1ZZY146W3qSuhAgACTAACaW50ACFMc2NhbGEvY29sbGVjdGlvbi9pbW11dGFibGUvTGlzdDtMAANvdXRxAH4AAXhwc3IAMnNjYWxhLmNvbGxlY3Rpb24uaW1tdXRhYmxlLkxpc3QkU2VyaWFsaXphdGlvblByb3h5AAAAAAAAAAEDAAB4cHNyACxzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5MaXN0U2VyaWFsaXplRW5kJIpcY1v3UwttAgAAeHB4cQB+AAQ=")
+  check(immutable.Queue(1, 2, 3))(  "rO0ABXNyACBzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5RdWV1ZZY146W3qSuhAgACTAACaW50ACFMc2NhbGEvY29sbGVjdGlvbi9pbW11dGFibGUvTGlzdDtMAANvdXRxAH4AAXhwc3IAMnNjYWxhLmNvbGxlY3Rpb24uaW1tdXRhYmxlLkxpc3QkU2VyaWFsaXphdGlvblByb3h5AAAAAAAAAAEDAAB4cHNyACxzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5MaXN0U2VyaWFsaXplRW5kJIpcY1v3UwttAgAAeHB4c3EAfgADc3IAEWphdmEubGFuZy5JbnRlZ2VyEuKgpPeBhzgCAAFJAAV2YWx1ZXhyABBqYXZhLmxhbmcuTnVtYmVyhqyVHQuU4IsCAAB4cAAAAAFzcQB+AAgAAAACc3EAfgAIAAAAA3EAfgAGeA==")
+
+  check(new immutable.Range(0, 1, 1))( "rO0ABXNyACBzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5SYW5nZWm7o1SrFTINAgAHSQADZW5kWgAHaXNFbXB0eUkAC2xhc3RFbGVtZW50SQAQbnVtUmFuZ2VFbGVtZW50c0kABXN0YXJ0SQAEc3RlcEkAD3Rlcm1pbmFsRWxlbWVudHhwAAAAAQAAAAAAAAAAAQAAAAAAAAABAAAAAQ==")
+
+  check(immutable.Set())(              "rO0ABXNyAChzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5TZXQkRW1wdHlTZXQk8Hk3TFN0uDYCAAB4cA==")
+  check(immutable.Set(1))(             "rO0ABXNyACNzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5TZXQkU2V0MREd3c4yqtWTAgABTAAFZWxlbTF0ABJMamF2YS9sYW5nL09iamVjdDt4cHNyABFqYXZhLmxhbmcuSW50ZWdlchLioKT3gYc4AgABSQAFdmFsdWV4cgAQamF2YS5sYW5nLk51bWJlcoaslR0LlOCLAgAAeHAAAAAB")
+  check(immutable.Set(1, 2))(          "rO0ABXNyACNzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5TZXQkU2V0MqaV02sZQzV0AgACTAAFZWxlbTF0ABJMamF2YS9sYW5nL09iamVjdDtMAAVlbGVtMnEAfgABeHBzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4AAwAAAAI=")
+  check(immutable.Set(1, 2, 3))(       "rO0ABXNyACNzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5TZXQkU2V0M84syT0560SgAgADTAAFZWxlbTF0ABJMamF2YS9sYW5nL09iamVjdDtMAAVlbGVtMnEAfgABTAAFZWxlbTNxAH4AAXhwc3IAEWphdmEubGFuZy5JbnRlZ2VyEuKgpPeBhzgCAAFJAAV2YWx1ZXhyABBqYXZhLmxhbmcuTnVtYmVyhqyVHQuU4IsCAAB4cAAAAAFzcQB+AAMAAAACc3EAfgADAAAAAw==")
+  check(immutable.Set(1, 2, 3, 4))(    "rO0ABXNyACNzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5TZXQkU2V0NM26psRRbei1AgAETAAFZWxlbTF0ABJMamF2YS9sYW5nL09iamVjdDtMAAVlbGVtMnEAfgABTAAFZWxlbTNxAH4AAUwABWVsZW00cQB+AAF4cHNyABFqYXZhLmxhbmcuSW50ZWdlchLioKT3gYc4AgABSQAFdmFsdWV4cgAQamF2YS5sYW5nLk51bWJlcoaslR0LlOCLAgAAeHAAAAABc3EAfgADAAAAAnNxAH4AAwAAAANzcQB+AAMAAAAE")
+  check(immutable.Set(1, 2, 3, 4, 5))( "rO0ABXNyADVzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5IYXNoU2V0JFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAACAwAAeHB3BAAAAAVzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAABXNxAH4AAgAAAAFzcQB+AAIAAAACc3EAfgACAAAAA3NxAH4AAgAAAAR4")
+
+  check(immutable.Stack(1, 2, 3))( "rO0ABXNyACBzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5TdGFjaxtt3qEbMvq+AgABTAAFZWxlbXN0ACFMc2NhbGEvY29sbGVjdGlvbi9pbW11dGFibGUvTGlzdDt4cHNyADJzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5MaXN0JFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAABAwAAeHBzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4ABQAAAAJzcQB+AAUAAAADc3IALHNjYWxhLmNvbGxlY3Rpb24uaW1tdXRhYmxlLkxpc3RTZXJpYWxpemVFbmQkilxjW/dTC20CAAB4cHg=")
+
+  check(immutable.Stream(1, 2, 3))( "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")
+
+  check(immutable.TreeSet[Int]())(   "rO0ABXNyACJzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5UcmVlU2V0sRdVIDjbWAsCAAJMAAhvcmRlcmluZ3QAFUxzY2FsYS9tYXRoL09yZGVyaW5nO0wABHRyZWV0AC5Mc2NhbGEvY29sbGVjdGlvbi9pbW11dGFibGUvUmVkQmxhY2tUcmVlJFRyZWU7eHBzcgAYc2NhbGEubWF0aC5PcmRlcmluZyRJbnQkC4BMdr1Z51wCAAB4cHA=")
+  check(immutable.TreeSet(1, 2, 3))( "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")
+
+  check(mutable.ArrayBuffer(1, 2, 3))(      "rO0ABXNyACRzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuQXJyYXlCdWZmZXIVOLBTg4KOcwIAA0kAC2luaXRpYWxTaXplSQAFc2l6ZTBbAAVhcnJheXQAE1tMamF2YS9sYW5nL09iamVjdDt4cAAAABAAAAADdXIAE1tMamF2YS5sYW5nLk9iamVjdDuQzlifEHMpbAIAAHhwAAAAEHNyABFqYXZhLmxhbmcuSW50ZWdlchLioKT3gYc4AgABSQAFdmFsdWV4cgAQamF2YS5sYW5nLk51bWJlcoaslR0LlOCLAgAAeHAAAAABc3EAfgAFAAAAAnNxAH4ABQAAAANwcHBwcHBwcHBwcHBw")
+  check(mutable.ArraySeq(1, 2, 3))(         "rO0ABXNyACFzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuQXJyYXlTZXEVPD3SKEkOcwIAAkkABmxlbmd0aFsABWFycmF5dAATW0xqYXZhL2xhbmcvT2JqZWN0O3hwAAAAA3VyABNbTGphdmEubGFuZy5PYmplY3Q7kM5YnxBzKWwCAAB4cAAAAANzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4ABQAAAAJzcQB+AAUAAAAD")
+  check(mutable.ArrayStack(1, 2, 3))(       "rO0ABXNyACNzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuQXJyYXlTdGFja3bdxXbcnLBeAgACSQAqc2NhbGEkY29sbGVjdGlvbiRtdXRhYmxlJEFycmF5U3RhY2skJGluZGV4WwAqc2NhbGEkY29sbGVjdGlvbiRtdXRhYmxlJEFycmF5U3RhY2skJHRhYmxldAATW0xqYXZhL2xhbmcvT2JqZWN0O3hwAAAAA3VyABNbTGphdmEubGFuZy5PYmplY3Q7kM5YnxBzKWwCAAB4cAAAAANzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAA3NxAH4ABQAAAAJzcQB+AAUAAAAB")
+  check(mutable.DoubleLinkedList(1, 2, 3))( "rO0ABXNyAClzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuRG91YmxlTGlua2VkTGlzdI73LKsKRr1RAgADTAAEZWxlbXQAEkxqYXZhL2xhbmcvT2JqZWN0O0wABG5leHR0AB5Mc2NhbGEvY29sbGVjdGlvbi9tdXRhYmxlL1NlcTtMAARwcmV2cQB+AAJ4cHNyABFqYXZhLmxhbmcuSW50ZWdlchLioKT3gYc4AgABSQAFdmFsdWV4cgAQamF2YS5sYW5nLk51bWJlcoaslR0LlOCLAgAAeHAAAAABc3EAfgAAc3EAfgAEAAAAAnNxAH4AAHNxAH4ABAAAAANzcQB+AABwcQB+AAtxAH4ACXEAfgAHcQB+AANw")
+
+  check(mutable.HashMap())( "rO0ABXNyACBzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuSGFzaE1hcAAAAAAAAAABAwAAeHB3DQAAAu4AAAAAAAAABAB4")
+  check(mutable.HashMap(1 -> 1))( "rO0ABXNyACBzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuSGFzaE1hcAAAAAAAAAABAwAAeHB3DQAAAu4AAAABAAAABABzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXEAfgAEeA==")
+  check(mutable.HashSet(1, 2, 3))( "rO0ABXNyACBzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuSGFzaFNldAAAAAAAAAABAwAAeHB3DQAAAcIAAAADAAAABQBzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4AAgAAAAJzcQB+AAIAAAADeA==")
+  check(new mutable.History())( "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")
+  check(mutable.LinkedHashMap(1 -> 2))( "rO0ABXNyACZzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuTGlua2VkSGFzaE1hcAAAAAAAAAABAwAAeHB3DQAAAu4AAAABAAAABABzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4AAgAAAAJ4")
+  check(mutable.LinkedHashSet(1, 2, 3))( "rO0ABXNyACZzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuTGlua2VkSGFzaFNldAAAAAAAAAABAwAAeHB3DQAAAu4AAAADAAAABABzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4AAgAAAAJzcQB+AAIAAAADeA==")
+  check(mutable.LinkedList(1, 2, 3))( "rO0ABXNyACNzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuTGlua2VkTGlzdJqT6cYJkdpRAgACTAAEZWxlbXQAEkxqYXZhL2xhbmcvT2JqZWN0O0wABG5leHR0AB5Mc2NhbGEvY29sbGVjdGlvbi9tdXRhYmxlL1NlcTt4cHNyABFqYXZhLmxhbmcuSW50ZWdlchLioKT3gYc4AgABSQAFdmFsdWV4cgAQamF2YS5sYW5nLk51bWJlcoaslR0LlOCLAgAAeHAAAAABc3EAfgAAc3EAfgAEAAAAAnNxAH4AAHNxAH4ABAAAAANzcQB+AABwcQB+AAs=")
+  check(mutable.ListBuffer(1, 2, 3))( "rO0ABXNyACNzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuTGlzdEJ1ZmZlci9y9I7QyWzGAwAEWgAIZXhwb3J0ZWRJAANsZW5MAAVsYXN0MHQAKUxzY2FsYS9jb2xsZWN0aW9uL2ltbXV0YWJsZS8kY29sb24kY29sb247TAAqc2NhbGEkY29sbGVjdGlvbiRtdXRhYmxlJExpc3RCdWZmZXIkJHN0YXJ0dAAhTHNjYWxhL2NvbGxlY3Rpb24vaW1tdXRhYmxlL0xpc3Q7eHBzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4ABAAAAAJzcQB+AAQAAAADc3IALHNjYWxhLmNvbGxlY3Rpb24uaW1tdXRhYmxlLkxpc3RTZXJpYWxpemVFbmQkilxjW/dTC20CAAB4cHcFAAAAAAN4")
+  check(new mutable.StringBuilder(new java.lang.StringBuilder("123")))( "rO0ABXNyACZzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuU3RyaW5nQnVpbGRlcomvqgGv1tTxAgABTAAKdW5kZXJseWluZ3QAGUxqYXZhL2xhbmcvU3RyaW5nQnVpbGRlcjt4cHNyABdqYXZhLmxhbmcuU3RyaW5nQnVpbGRlcjzV+xRaTGrLAwAAeHB3BAAAAAN1cgACW0OwJmaw4l2ErAIAAHhwAAAAEwAxADIAMwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAeA==")
+  check(mutable.UnrolledBuffer[Int]())( "rO0ABXNyACdzY2FsYS5jb2xsZWN0aW9uLm11dGFibGUuVW5yb2xsZWRCdWZmZXIAAAAAAAAAAQMAAUwAA3RhZ3QAGExzY2FsYS9yZWZsZWN0L0NsYXNzVGFnO3hwc3IAJXNjYWxhLnJlZmxlY3QuTWFuaWZlc3RGYWN0b3J5JCRhbm9uJDnN+aJJU2O1UgIAAHhyABxzY2FsYS5yZWZsZWN0LkFueVZhbE1hbmlmZXN0AAAAAAAAAAECAAFMAAh0b1N0cmluZ3QAEkxqYXZhL2xhbmcvU3RyaW5nO3hwdAADSW50dwQAAAAAeA==")
+
+  import collection.parallel
+  check(parallel.immutable.ParHashMap(1 -> 2))( "rO0ABXNyAC5zY2FsYS5jb2xsZWN0aW9uLnBhcmFsbGVsLmltbXV0YWJsZS5QYXJIYXNoTWFwAAAAAAAAAAECAANMAA9TY2FuTGVhZiRtb2R1bGV0ADVMc2NhbGEvY29sbGVjdGlvbi9wYXJhbGxlbC9QYXJJdGVyYWJsZUxpa2UkU2NhbkxlYWYkO0wAD1NjYW5Ob2RlJG1vZHVsZXQANUxzY2FsYS9jb2xsZWN0aW9uL3BhcmFsbGVsL1Bhckl0ZXJhYmxlTGlrZSRTY2FuTm9kZSQ7TAAEdHJpZXQAJExzY2FsYS9jb2xsZWN0aW9uL2ltbXV0YWJsZS9IYXNoTWFwO3hwcHBzcgA1c2NhbGEuY29sbGVjdGlvbi5pbW11dGFibGUuSGFzaE1hcCRTZXJpYWxpemF0aW9uUHJveHkAAAAAAAAAAgMAAHhwdwQAAAABc3IAEWphdmEubGFuZy5JbnRlZ2VyEuKgpPeBhzgCAAFJAAV2YWx1ZXhyABBqYXZhLmxhbmcuTnVtYmVyhqyVHQuU4IsCAAB4cAAAAAFzcQB+AAcAAAACeA==")
+  check(parallel.immutable.ParHashSet(1, 2, 3))( "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")
+  check(new parallel.immutable.ParRange(new Range(0, 1, 2)))( "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")
+  check(parallel.mutable.ParArray(1, 2, 3))( "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")
+  check(parallel.mutable.ParHashMap(1 -> 2))( "rO0ABXNyACxzY2FsYS5jb2xsZWN0aW9uLnBhcmFsbGVsLm11dGFibGUuUGFySGFzaE1hcAAAAAAAAAABAwACTAAPU2NhbkxlYWYkbW9kdWxldAA1THNjYWxhL2NvbGxlY3Rpb24vcGFyYWxsZWwvUGFySXRlcmFibGVMaWtlJFNjYW5MZWFmJDtMAA9TY2FuTm9kZSRtb2R1bGV0ADVMc2NhbGEvY29sbGVjdGlvbi9wYXJhbGxlbC9QYXJJdGVyYWJsZUxpa2UkU2Nhbk5vZGUkO3hwcHB3DQAAAu4AAAABAAAABAFzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4ABAAAAAJ4")
+  check(parallel.mutable.ParHashSet(1, 2, 3))( "rO0ABXNyACxzY2FsYS5jb2xsZWN0aW9uLnBhcmFsbGVsLm11dGFibGUuUGFySGFzaFNldAAAAAAAAAABAwACTAAPU2NhbkxlYWYkbW9kdWxldAA1THNjYWxhL2NvbGxlY3Rpb24vcGFyYWxsZWwvUGFySXRlcmFibGVMaWtlJFNjYW5MZWFmJDtMAA9TY2FuTm9kZSRtb2R1bGV0ADVMc2NhbGEvY29sbGVjdGlvbi9wYXJhbGxlbC9QYXJJdGVyYWJsZUxpa2UkU2Nhbk5vZGUkO3hwcHB3DQAAAcIAAAADAAAAGwFzcgARamF2YS5sYW5nLkludGVnZXIS4qCk94GHOAIAAUkABXZhbHVleHIAEGphdmEubGFuZy5OdW1iZXKGrJUdC5TgiwIAAHhwAAAAAXNxAH4ABAAAAAJzcQB+AAQAAAADeA==")
+
+  check("...".r)("rO0ABXNyABlzY2FsYS51dGlsLm1hdGNoaW5nLlJlZ2V44u3Vap7wIb8CAAJMAAdwYXR0ZXJudAAZTGphdmEvdXRpbC9yZWdleC9QYXR0ZXJuO0wAJXNjYWxhJHV0aWwkbWF0Y2hpbmckUmVnZXgkJGdyb3VwTmFtZXN0ABZMc2NhbGEvY29sbGVjdGlvbi9TZXE7eHBzcgAXamF2YS51dGlsLnJlZ2V4LlBhdHRlcm5GZ9VrbkkCDQIAAkkABWZsYWdzTAAHcGF0dGVybnQAEkxqYXZhL2xhbmcvU3RyaW5nO3hwAAAAAHQAAy4uLnNyADJzY2FsYS5jb2xsZWN0aW9uLmltbXV0YWJsZS5MaXN0JFNlcmlhbGl6YXRpb25Qcm94eQAAAAAAAAABAwAAeHBzcgAsc2NhbGEuY29sbGVjdGlvbi5pbW11dGFibGUuTGlzdFNlcmlhbGl6ZUVuZCSKXGNb91MLbQIAAHhweA==",
+                 r => (r.toString))
+}
diff --git a/test/files/run/t8549b.scala b/test/files/run/t8549b.scala
new file mode 100644
index 0000000000..1e1bf2c0bc
--- /dev/null
+++ b/test/files/run/t8549b.scala
@@ -0,0 +1,16 @@
+
+@SerialVersionUID(42)
+class C
+
+@SerialVersionUID(43 - 1)
+class D
+
+
+object Test extends App {
+  def checkId(cls: Class[_]) {
+    val id = cls.getDeclaredField("serialVersionUID").get(null)
+    assert(id == 42, (cls, id))  
+  }
+  checkId(classOf[C])
+  checkId(classOf[D])
+}
diff --git a/test/junit/scala/collection/convert/MapWrapperTest.scala b/test/junit/scala/collection/convert/MapWrapperTest.scala
index 060b6b5937..22eaf858ea 100644
--- a/test/junit/scala/collection/convert/MapWrapperTest.scala
+++ b/test/junit/scala/collection/convert/MapWrapperTest.scala
@@ -46,4 +46,14 @@ class MapWrapperTest {
     assertFalse(javaMap.containsKey(null))       // negative test, null key
     assertEquals(4, scalaMap.containsCounter)
   }
+
+  // test for SI-8504
+  @Test
+  def testHashCode() {
+    import scala.collection.JavaConverters._
+    val javaMap = Map(1 -> null).asJava
+
+    // Before the fix for SI-8504, this throws a NPE
+    javaMap.hashCode
+  }
 }