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https://issues.apache.org/jira/browse/GROOVY-9412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17049502#comment-17049502
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Eric Milles commented on GROOVY-9412:
-------------------------------------
I think the issue comes for Enum types because isUnsingGenerics() is true for
the bound because the Enum class uses generics.
{code:java}
private static boolean compareGenericsWithBound(final ClassNode classNode,
final ClassNode bound) {
if (classNode == null) {
return false;
}
if (!bound.isUsingGenerics() || (classNode.getGenericsTypes() == null
&& classNode.redirect().getGenericsTypes() != null)) {
// if the bound is not using generics or the class node is a raw
type, there's nothing to compare with
return true;
}
{code}
If this check in GenericsType found no generics in bound ("Bar" in this case),
it would accept the match between "Foo" (classNode) and "Bar" (bound).
> enum added to List fails TypeChecked
> ------------------------------------
>
> Key: GROOVY-9412
> URL: https://issues.apache.org/jira/browse/GROOVY-9412
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 3.0.0, 3.0.1
> Environment: CentOS
> Reporter: Ian
> Priority: Major
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
>
> {code:java}
> import groovy.transform.TypeChecked
> @TypeChecked
> class MyClass {
> interface Foo {}
> enum Bar implements Foo {
> AA
> }
>
> void F() {
> List<Foo> g = []
> g.add(Bar.AA)
> }
> }
> new MyClass()
> {code}
> Put this in a file "script.groovy" and call "groovy script.groovy"
> Expected: No output
> Actual:
> {noformat}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
> failed:
> <path to file>/Script.groovy: 14: [Static type checking] - Cannot call
> java.util.List <Foo>#add(MyClass$Foo) with arguments [MyClass$Bar]
> @ line 14, column 9.
> g.add(Bar.AA)
> ^
> 1 error{noformat}
> Does not occur in 3.0.0-rc-3 or earlier.
> Looks similar to GROOVY-8960 but does not occur in 2.5.5
> Workaround: Add cast "g.add(Bar.AA as Foo)"
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