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null.asInstanceOf[T] doesn't follow spec #1245

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scabug opened this issue Aug 19, 2008 · 4 comments
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null.asInstanceOf[T] doesn't follow spec #1245

scabug opened this issue Aug 19, 2008 · 4 comments
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scabug commented Aug 19, 2008

Using version 2.7.1.r15804-b20080816212059.

object T5 extends Application {
  val i : Int = null.asInstanceOf[Int]
  println(i)
}

Expected: a NullPointerException, as specified in section 6.3 of the spec (as of 2008-05-05), since Int doesn't conform to AnyRef.

Got: output "0".
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scabug commented Aug 19, 2008

Imported From: https://issues.scala-lang.org/browse/SI-1245?orig=1
Reporter: Lauri Alanko (lealanko)
See #4437

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scabug commented Oct 25, 2008

@DRMacIver said:
See #602 and the related #668 for details as to why this is there.

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scabug commented Mar 4, 2011

@soc said:
Still exists on 2.9.0.r24324-b20110222020042.

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scabug commented Apr 7, 2011

@soc said:
#4437 seems to be the main focus of activity and handles the whole variety of the problems with asInstanceOf, so I guess this could be closed as a duplicate of #4437 before it is forgotten completely?

@scabug scabug closed this as completed May 18, 2011
@scabug scabug mentioned this issue Apr 7, 2017
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