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https://issues.apache.org/jira/browse/GROOVY-7602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15175257#comment-15175257
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Paul King commented on GROOVY-7602:
-----------------------------------
possibly related to disjoint issue
> Intersect returns an empty list when the contents of the compared Collections
> are Maps
> --------------------------------------------------------------------------------------
>
> Key: GROOVY-7602
> URL: https://issues.apache.org/jira/browse/GROOVY-7602
> Project: Groovy
> Issue Type: Bug
> Components: groovy-jdk
> Affects Versions: 2.3.11, 2.4.5
> Environment: Mac OS X 10.9.5
> Oracle Java 1.8.0_60
> Reporter: Justin Guertin
>
> When I compare two lists with intersect and both lists contain maps I do not
> get any results, even if the contents are equivalent. The test fails in
> Groovy 2.3.11, but passes in 2.3.7.
> {code}
> import org.junit.Test
> class IntersectTest {
> @Test
> void testIntersect() {
> def list1 = [[language: 'Java'], [language: 'Groovy'], [language:
> 'Scala']]
> def list2 = [[language: 'Groovy'], [language: 'JRuby'], [language:
> 'Java']]
> def intersection = list1.intersect(list2)
> assert list1[0] == list2[2] // proves that there should be
> intersecting values
> println "Intersection: $intersection"
> assert intersection == [[language: 'Groovy'], [language: 'Java']]
> }
> }
> {code}
> The intersect call returns an empty list in 2.3.11, resulting in the
> following output:
> {code}
> Intersection: []
> Assertion failed:
> assert intersection == [[language: 'Groovy'], [language: 'Java']]
> | |
> [] false
> {code}
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