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https://issues.apache.org/jira/browse/GROOVY-7845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15296675#comment-15296675
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Jochen Theodorou commented on GROOVY-7845:
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If this does not work with Spock, then this is a semantic change done by spock,
because this works:
{code:Java}
public class Foo {
public static String toStringSpecial(Object object) {return "Object:
"+object;}
public static String toStringSpecial(Set object) {return "Set: "+object;}
public static String toStringSpecial(String object) {return "String:
"+object;}
}
assert Foo.toStringSpecial(null) == "Object: null"
assert Foo.toStringSpecial((Set)null) == "Set: null"
assert Foo.toStringSpecial((String)null) == "String: null"
{code}
> Impossible to explicitely call a specific method with null argument.
> --------------------------------------------------------------------
>
> Key: GROOVY-7845
> URL: https://issues.apache.org/jira/browse/GROOVY-7845
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 2.4.6
> Reporter: Joern Huxhorn
> Labels: user
>
> - Clone the repository https://github.com/huxi/bugs
> - cd bugs/groovy/calls-with-null
> - ./gradlew
> The example class has three public static 'toStringSpecial' methods. It's
> impossible to call toStringSpecial(Set) or toStringSpecial(String) with a
> null argument.
> This is possible in Java by casting null to the desired type.
> It's currently impossible (AFAIK) to use Spock for testing such Java methods.
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