API leaks non-public class #19

I've executed Sun's sigtest on javahelp APIs and I got this report:

Hidden class found: javax.help.HelpSetFactory in method public static
javax.help.HelpSet
javax.help.HelpSet.parse(java.net.URL,java.lang.ClassLoader,javax.help.HelpSetFactory)
in class javax.help.HelpSet

Hidden class found: javax.help.HelpSetFactory in method public void
javax.help.HelpSet.parseInto(java.net.URL,javax.help.HelpSetFactory) in class
javax.help.HelpSet

I believe public class HelpSet should not refer to non-public class
HelpSetFactory. Either make the above methods package private, or make
HelpSetFactory public.

Environment

Operating System: All
Platform: All

Affected Versions

[current]