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Re: [cross-project-issues-dev] Is exporting all packages a best practice?

> > See http://wiki.eclipse.org/Export-Package
> Thank you, Dani. That may be what I was looking for.
> 
> But it does not explain the difference between or consequences of:
> 
> a) exporting a non-API package as x-internal
> b) not exporting it at all

Adding x-internal helps your clients during development time as it warns 
them (discouraged access) when they use a type from such a package. During 
runtime, it allows that in non-strict (i.e. default) mode (see 
osgi.resolverMode runtime option) the types from an x-internal package can 
be loaded and hence clients can use types from non-API packages. If you 
don't add the non-API packages with x-internal to the manifest then any 
app using code from such a package won't even work in non-strict mode as 
the types would not be loaded by the class loader. Once you start in 
strict mode all types from x-internal packages won't load either.

Dani


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