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2.12 transient lazy val regression #10075

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scabug opened this issue Nov 22, 2016 · 3 comments
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2.12 transient lazy val regression #10075

scabug opened this issue Nov 22, 2016 · 3 comments
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@adriaanm
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backend blocker
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2.12.1

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@scabug
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scabug commented Nov 22, 2016

There seem to be a regression in handling transient lazy vals in 2.12. In 2.11.8, the backing field seems to be marked as transient, while in 2.12.0 it doesn't seem to. (Full example: https://gist.github.com/durban/8c2ffdc426b89fd379ea9699f63464e8)

class MyClass // not Serializable

class TestClass extends Serializable {

  @transient
  lazy val foo: MyClass =
    new MyClass
}

Relevant javap output in 2.11.8:

public class TestClass implements scala.Serializable {
  private transient MyClass foo;
...

And in 2.12.0:

public class TestClass implements scala.Serializable {
  private MyClass foo;
...
@scabug
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scabug commented Nov 22, 2016

Imported From: https://issues.scala-lang.org/browse/SI-10075?orig=1
Reporter: Daniel Urban (durban)
Affected Versions: 2.12.0

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scabug commented Nov 30, 2016

@adriaanm said:
Thanks for the great report! Working on it. Sorry for the breakage.

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scabug commented Nov 30, 2016

@adriaanm said:
scala/scala#5570

@scabug scabug closed this as completed Dec 5, 2016
@scabug scabug added this to the 2.12.1 milestone Apr 7, 2017
@scabug scabug mentioned this issue Apr 7, 2017
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