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spurious "non-nullary method overrides nullary method" warning when mixing Scala and Java #6978

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scabug opened this issue Jan 15, 2013 · 2 comments
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spurious "non-nullary method overrides nullary method" warning when mixing Scala and Java #6978

scabug opened this issue Jan 15, 2013 · 2 comments
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2.12.1

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@scabug
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scabug commented Jan 15, 2013

the non-nullary method in question is in Java source code, so there isn't any way for me to make it nullary to make the warning go away.

% cat S.scala
trait T { def foo: Int }
class S extends J with T
% cat J.java 
class J { public int foo() { return 0; } }
% /usr/local/scala-2.10.0/bin/scalac -Xlint S.scala J.java
J.java:1: warning: non-nullary method overrides nullary method
class J { public int foo() { return 0; } }

in my particular codebase I was able to work around it by changing "class J" to "abstract class J extends T". but it does seem like a bug.
@scabug
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scabug commented Jan 15, 2013

Imported From: https://issues.scala-lang.org/browse/SI-6978?orig=1
Reporter: @SethTisue
Affected Versions: 2.10.0

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scabug commented Oct 15, 2016

@som-snytt said:
Maybe that easy. scala/scala#5460

@scabug scabug closed this as completed Nov 10, 2016
@scabug scabug added this to the 2.12.1 milestone Apr 7, 2017
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