On 6/5/15 4:12 AM, Rory O'Donnell wrote:
Hi Rick,
Thanks for getting back to us , glad to hear the current 10.11.1.1
release looks clean.
On another topic, I'm trying to get an idea about how much community
testing is happening on JDK
Early Access (EA) builds, and to encourage more of it to happen.
Would you like me to send you availability emails for the Early Access
builds for the various JDK 8
updates & JDK 9 ?
Hi Rory,
You're welcome to send this information to the community. If you need to
list a contact, you can use my name. For the time being, I will probably
just turn around and ask Oracle's Stockholm lab to install the new JVMs
and then run the Derby test suites.
I recommend that you urge your management to include Derby in the list
of big apps which are used to measure the quality of promoted builds.
Derby is, indeed, an excellent canary in the mine shaft.
Thanks,
-Rick
I would really like to list your project along with a contact and link
to your CI on the wiki [0], is that
something you would be interested in ?
Rgds,Rory
[0] https://wiki.openjdk.java.net/display/quality/Quality+Outreach
On 19/05/2015 22:49, Rick Hillegas wrote:
On 5/19/15 8:49 AM, Myrna van Lunteren wrote:
Hi folks,
I just got this message, probably because I'm still listed as the
PMC chair. I currently have no time to look into this, can anyone
else free up any time?
Myrna
---------- Forwarded message ----------
From: *Rory O'Donnell* <[email protected]
<mailto:[email protected]>>
Date: Tue, May 19, 2015 at 1:50 AM
Subject: Derby dependencies on JDK-Internal APIs
To: [email protected] <mailto:[email protected]>
Cc: [email protected] <mailto:[email protected]>,
Dalibor Topic <[email protected]
<mailto:[email protected]>>, Balchandra Vaidya
<[email protected] <mailto:[email protected]>>
Hi Myrna,
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
<https://jdk8.java.net/download.html>). You do not need to
actually test or run your application on JDK8. JDeps(Docs
<http://docs.oracle.com/javase/8/docs/technotes/tools/unix/jdeps.html>)
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)
-> com.sun.corba.se <http://com.sun.corba.se>
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]
https://wiki.openjdk.java.net/display/JDK8/Java+Dependency+Analysis+Tool
--
Rgds,Rory O'Donnell
Quality Engineering Manager
Oracle EMEA , Dublin, Ireland
Hi Rory, Dalibor, and Balchandra,
I downloaded the preview jdku60 and ran its jdeps against the library
of Derby 10.11.1.1 jar files, per the instructions above. No
dependencies were listed.
I did find dependencies on classes in the org.w3c.dom.xpath package
when I ran jdeps on the previous Derby feature release (10.10.1.1).
But the current 10.11.1.1 release looks clean.
Best regards,
-Rick
--
Rgds,Rory O'Donnell
Quality Engineering Manager
Oracle EMEA , Dublin, Ireland
