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From Andreas Veithen <>
Subject Re: Apache Neethi dependencies on JDK-Internal APIs
Date Sat, 20 Jun 2015 20:07:10 GMT
Not sure what they are referring to. Tested this on the current
snapshot version and jdeps didn't report anything.


On Fri, Jun 19, 2015 at 11:21 AM, Rory O'Donnell
<> wrote:
> Hi Sagara,
> My name is Rory O'Donnell, I am the OpenJDK Quality Group Lead.
> I'm contacting you because your open source project seems to be a very
> popular dependency for other open source projects.
> As part of the preparations for JDK 9, Oracle’s engineers have been
> analyzing open source projects like yours to understand usage. One area of
> concern involves identifying compatibility problems, such as reliance on
> JDK-internal APIs.
> Our engineers have already prepared guidance on migrating some of the more
> common usage patterns of JDK-internal APIs to supported public interfaces.
> The list is on the OpenJDK wiki [0].
> As part of the ongoing development of JDK 9, I would like to inquire about
> your usage of  JDK-internal APIs and to encourage migration towards
> supported Java APIs if necessary.
> The first step is to identify if your application(s) is leveraging internal
> APIs.
>   Step 1: Download JDeps.
> Just download a preview release of JDK8(JDeps Download). You do not need to
> actually test or run your application on JDK8.  JDeps(Docs) looks through
> JAR files and identifies which JAR files use internal APIs and then lists
> those APIs.
>   Step 2: To run JDeps against an application. The command looks like:
> jdk8/bin/jdeps -P -jdkinternals *.jar > your-application.jdeps.txt
> The output inside your-application.jdeps.txt will look like:
> your.package (Filename.jar)
>       ->            JDK internal API (rt.jar)
> 3rd party library using Internal APIs:
> If your analysis uncovers a third-party component that you rely on, you can
> contact the provider and let them know of the upcoming changes. You can then
> either work with the provider to get an updated library that won't rely on
> Internal APIs, or you can find an alternative provider for the capabilities
> that the offending library provides.
> Dynamic use of Internal APIs:
> JDeps can not detect dynamic use of internal APIs, for example through
> reflection, service loaders and similar mechanisms.
> Rgds,Rory
> [0]
> --
> Rgds,Rory O'Donnell
> Quality Engineering Manager
> Oracle EMEA , Dublin, Ireland

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