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https://issues.apache.org/jira/browse/FREEMARKER-145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17134706#comment-17134706
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Dániel Dékány commented on FREEMARKER-145:
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It should be visible, and for me it is (on Windows, where it's {{WindowsPath
getParent()}}, but that's the same kind of situation). As of said condition,
{{UnixPath getPath()}} should be among the accessible methods, so that
condition should be satisfied for *some* of {{getParent}} method variations. I
suspect something is up with the behavior of the standard Java reflection or
Beans API there. What Java version is that exactly?
> Can't access nio Path.getParent() in templates
> ----------------------------------------------
>
> Key: FREEMARKER-145
> URL: https://issues.apache.org/jira/browse/FREEMARKER-145
> Project: Apache Freemarker
> Issue Type: Bug
> Components: engine
> Affects Versions: 2.3.30
> Reporter: Alfio Gloria
> Priority: Major
>
> When using something like ${data.path.parent} freemarker throws an exception
> "The following has evaluated to null or missing" (obviously on a path that
> has non null parent).
> After some investigation i figured out that freemarker does not recognize
> getParent() as a valid bean method.
> This seems due to a condition in ClassIntrospector, line 827:
> if (am.getReturnType() == m.getReturnType())
> where
> am.getReturnType() -> java.nio.file.Path
> m.getReturnType() -> sun.nio.fs.UnixPath
> I don't know the rationale of the aforementioned condition but it seems weird
> to me that I can reference a Path object with ${data.path} but not with
> ${data.path.parent} since they are both sun.nio.fs.UnixPath objects
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