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https://issues.apache.org/jira/browse/GROOVY-6236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul King closed GROOVY-6236.
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Resolution: Invalid
Assignee: Paul King
Some instanceof issues were fixed in 2.4.13. The example here doesn't seem like
a new example or even valid (shouldn't be an instanceof but rather
isAssignableFrom). Please reopen or create a new issue if there still remains a
case that isn't handled.
> CompileStatic with negated instanceof check causes compilation to fail
> ----------------------------------------------------------------------
>
> Key: GROOVY-6236
> URL: https://issues.apache.org/jira/browse/GROOVY-6236
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation
> Affects Versions: 2.1.5
> Reporter: Graeme Rocher
> Assignee: Paul King
> Priority: Major
>
> The following class:
> {code}
> class JsonHttpMessageConverter extends
> AbstractHttpMessageConverter<JSONElement>{
> ...
> @Override
> boolean canWrite(Class<?> clazz, MediaType mediaType) {
> return !(clazz instanceof JSON) && super.canWrite(clazz, mediaType)
> ...
> {code}
> Fails to compile with
> {code}
> Groovyc: [Static type checking] - Cannot find matching method
> org.springframework.http.converter.AbstractHttpMessageConverter#canWrite(<UnionTypejava.lang.Class+grails.converters.JSON>,
> org.springframework.http.MediaType). Please check if the declared type is
> right and if the method exists.
> {code}
> Reversing the conditions (ie making the negated instanceof first) makes it
> pass compilation
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