Paul King created GROOVY-7892:
---------------------------------
Summary: CLONE - ClassCastException when calling
DefaultTypeTransformation#compareEqual
Key: GROOVY-7892
URL: https://issues.apache.org/jira/browse/GROOVY-7892
Project: Groovy
Issue Type: Bug
Affects Versions: 2.4.6
Reporter: Andrew White
Assignee: Paul King
Fix For: 2.4.8
It appears that comparing two objects that both implement comparable with
DefaultTypeTransformation#compareEqual is not safe in all cases. Consider enums
for example, which throw exceptions when compared to differing classes.
This is using Eclipse Collections for pairs but the idea is the same in
general.
{code}
enum E1 {A, B, C}
enum E2 {D, E, F}
def "test groovy oddness"() {
when:
def test = DefaultTypeTransformation.compareEqual(
Tuples.pair(E1.A, 1),
Tuples.pair(E2.D, 1))
then:
assert test == false
}
{code}
Stacktrace
{code}
java.lang.ClassCastException
at java.lang.Enum.compareTo(Enum.java:180)
at java.lang.Enum.compareTo(Enum.java:55)
at
org.eclipse.collections.impl.tuple.PairImpl.compareTo(PairImpl.java:95)
at
org.eclipse.collections.impl.tuple.PairImpl.compareTo(PairImpl.java:22)
at com.GroovyTests.test groovy oddness(GroovyTests.groovy:36)
{code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
