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https://issues.apache.org/jira/browse/FREEMARKER-40?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15718146#comment-15718146
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Daniel Dekany commented on FREEMARKER-40:
-----------------------------------------
It turns out that the original authors were right about this. Java reflection
doesn't allow you to access the public members of non-public classes, unless
that member overrides a public method of a public class or interface. If it's a
such override, then it's accessible from FreeMarker too. So FreeMarker is
consistent with the Java reflection rules, as far as I can tell.
My {{exposePublicMembersOfNonPublicClasses}} patch doesn't work... it finds the
members and all, but you still end up with {{java.lang.IllegalAccessException}}
when you actually try to call them. (I have no idea why it worked for me back
then... must have been an oversight.)
> ClassIntrospector should detect public methods in non-public classes
> --------------------------------------------------------------------
>
> Key: FREEMARKER-40
> URL: https://issues.apache.org/jira/browse/FREEMARKER-40
> Project: Apache Freemarker
> Issue Type: Bug
> Components: engine
> Affects Versions: 2.3.25-incubating
> Reporter: Jochen Wiedmann
> Assignee: Daniel Dekany
> Priority: Minor
>
> In ClassIntrospector.discoverAccessibleMethods, the assumption is made, that
> only public classes can have accessible methods. This is plainly wrong: For
> example, a private object might be implementing an interface.
> Freemarker should detect public gettters, and treat them as accessible. At
> the very least, it should inform the user about the problem. A message like
> "Key <propertyName> was not found on an instance of ..."
> should be replaced by
> "Key <propertyName> was not found on an instance of ..."
> "A possible reason is,that the class must be public."
> Thanks,
> Jochen
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